WO1997039493A1 - Dispositif radio portable - Google Patents
Dispositif radio portable Download PDFInfo
- Publication number
- WO1997039493A1 WO1997039493A1 PCT/JP1997/001290 JP9701290W WO9739493A1 WO 1997039493 A1 WO1997039493 A1 WO 1997039493A1 JP 9701290 W JP9701290 W JP 9701290W WO 9739493 A1 WO9739493 A1 WO 9739493A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- wireless device
- portable wireless
- circularly polarized
- communication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/245—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18569—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance
- H04B7/18571—Arrangements for system physical machines management, i.e. for construction operations control, administration, maintenance for satellites; for fixed or mobile stations
Definitions
- the present invention relates to a portable radio equipped with a circularly polarized antenna effective for satellite communication.
- a transmitting microstrip planar antenna (hereinafter, transmitting planar antenna) 22 and a receiving microstrip planar antenna (hereinafter, receiving planar antenna) 23 are shown.
- a collapsible antenna array 25 for satellite communication (ITU research, non-geostationary satellite communication system in the world No.261 / 262, New Japan ITU Association, published on August 19, 2003, page 36) has been proposed.
- the main beam direction can be slightly changed by the angle ⁇ between the portable wireless device 92 and the folding antenna array 25. Angle ⁇ is adjusted with hinge 85.
- the foldable antenna array 25 will be described below by taking as an example the configuration proposed in the Odyssey system (TRW, USA) described in the above ITU study.
- the portable wireless device 92 in FIG. 7 includes a folding antenna array 25 in which a transmitting planar antenna 22 and a receiving planar antenna 23 are arranged on a dielectric.
- the folding antenna array 25 can be arbitrarily adjusted with the hinge 85 at a bending angle of 0 ° to 180 ° with respect to the portable wireless device 92.
- the transmitting plane antenna 22 and the receiving plane antenna 23 communicate with the satellite using the frequencies f1 and f2, respectively. Satellite with the same frequency f1 for transmission and reception bands In the case of a communication system, only the transmission plane antenna among the plane antennas may be used for both transmission and reception. Generally, the frequency f1 uses the 1.6 GHz band, and the frequency f2 uses the 2.4 GHz band.
- a small planar antenna using a dielectric substrate has a narrow band, and the resonance frequency of the planar antenna fluctuates due to interaction with surrounding dielectrics such as the housing and the human body, and the transmission efficiency and reception sensitivity of the antenna are reduced. Was impaired.
- gain loss due to the human head becomes a problem.
- planar antenna In the case of a planar antenna, if the main beam direction is directed to the zenith direction (elevation angle: 90 degrees), communication sensitivity at low elevation angles is impaired. Conventionally, in mobile communications using communication satellites, it has been proposed to use either planar antenna means or helical antenna means.However, due to the directivity of the antenna, when the communication satellite has either a low elevation angle or a high elevation angle Only enough communication sensitivity can be obtained.
- the present invention prevents a human body (particularly the head) from approaching to an antenna element when a user uses a portable wireless device, and relates to a circularly polarized antenna mounted on the portable wireless device. A communication portion is provided between the two.
- the portable wireless device is provided with two circularly polarized antennas, and the main beam radiation directions of the two antennas are made different.
- FIG. 1 is an explanatory diagram of a portable wireless device according to an embodiment of the present invention
- FIG. 2 is a view showing a state in which antenna radiation is not blocked by a human head by using the portable wireless device of the embodiment of the present invention
- Fig. 3 shows a helical antenna
- (a) is an explanatory view of an antenna having a communication part with a 4-wire helical antenna
- (b) is an illustration of an antenna with a communication part with a 1-wire helical antenna.
- FIG. 4 shows another embodiment of the present invention, and is a diagram of a portable wireless device equipped with a plane antenna means and a helical antenna means.
- FIG. 5 is an antenna circuit block diagram of the antenna and flat antenna means shown in Fig. 4, Fig. 6 shows the relative power of the circularly polarized main beam.
- A is a diagram of a planar antenna
- (b) is a diagram of a helical antenna
- (c) is a diagram of (a) and (b).
- FIG. 7 is an explanatory diagram of a conventional portable wireless device.
- FIG. 1 shows an embodiment of the present invention
- reference numeral 5 denotes a communication portion formed of a coaxial line or a microstrip line.
- a circularly polarized optical antenna 14 composed of a coaxial line 9 and the like and a portable wireless device 92 are separated by a communication section 5.
- Reference numeral 81 denotes a display unit
- 82 denotes a receiver
- 83 denotes an operation unit
- 84 denotes a transmitter.
- a helical antenna 14 that generates circularly polarized waves for satellite communication.
- a two-wire helical antenna Japanese Unexamined Patent Publication No. 3-274904 (applicant: Nippon Telegraph and Telephone Corporation)) and the like are known.
- a linear helical antenna was used.
- the helical antenna 14 is composed of a coaxial line 9 serving as a radiating element and a conducting wire 8.
- the center conductor of the coaxial line serving as a radiating element is electrically connected to the conducting wire 8 at a feeding point 7, and the radiating element is connected to a radiating element at a winding end 6.
- the outer conductor of the coaxial cable 9 and the conductor 8 are electrically coupled.
- Reference numeral 11 denotes a dielectric cylinder, around which a coaxial wire 9 and a conductive wire 8 are spirally wound.
- the operation will be described based on a high-frequency current flowing through the helical antenna 14.
- the feed point 7 of the helical antenna 14 is located at the tip of the antenna.
- Nothing that becomes an antenna element is connected to the outer conductor of the coaxial line 9 that becomes a radiating element.
- the high-frequency current flowing from the center conductor of the coaxial line 9 at the feed point 7 flows from the winding end 6 upward from below the outer wall side of the outer conductor of the coaxial line 9 to A current flows in the opposite direction on the inner wall side. Therefore, apparently no high-frequency current flows through the outer conductor of the coaxial cable 9.
- the high-frequency current becomes a loop current. Since the conducting wire 8 and the coaxial wire 9 are helically wound around the dielectric cylinder 11, an electric field is also generated along the helix in the high-frequency current, and a circularly polarized wave is emitted.
- the communication portion 5 is provided in the antenna holder 10.
- a sliding connector 13 was provided on the upper right side surface of the portable wireless device 92, a sliding connector 12 was provided on the side of the communication section 5, and the antenna holder 10 was made detachable.
- the length of the communication section 5 is about 20% to 100% of the physical length of the circularly polarized antenna radiating element, or 0.1 to 0.1% of the operating wavelength of the circularly polarized antenna radiating element. It was designed with about 5 wavelengths.
- Fig. 2 shows how the antenna radiation is not obstructed by the human head by using the portable wireless device 92 of this embodiment.
- the antenna gain in the low elevation angle direction required for communication with a low-orbit satellite is shown. It is understood that is not impaired.
- the most suitable type of helical antenna may be selected according to the system in which the portable wireless device is used. Further, the helical antenna can be housed in a rotary or drawer type with respect to the housing of the portable wireless device.
- the communication unit 5 provided in the antenna holding unit 10 is configured to accommodate a coaxial line or a microstrip line.
- the present invention is not limited to this, and the communication unit 5 may be configured to include a coaxial line or a microstrip line. It may be constituted by a line or the like.
- the antenna is detachable by the sliding connector 13 and the sliding connector 12, but is not limited to this, and may be fixed if the communication part 5 is arranged.
- FIGS. 4 to 6.c The same reference numerals are given to the same portions as those shown in FIGS. 1 to 3 above. Details Detailed description is omitted.
- FIG. 4 40 is a flat antenna means, 14 is a helical antenna means, 92 is a portable radio, and the planar antenna means 40 is arranged on the upper surface of the casing of the portable radio 92, Helical antenna means 14 is arranged upward from the upper side surface.
- FIG. 5 shows an antenna circuit block, in which a signal combiner 32 is connected to a radio section 31. A signal selector may be used instead of the signal synthesizer 32. Both antennas have different radiation directions of the main beam, but have the same operating frequency band and the same polarization direction.
- the planar antenna means 40 has a patch-shaped conductor 2 attached to the upper surface of the dielectric substrate 3 and a ground conductor (not shown) attached to the lower surface of the dielectric substrate 3.
- a through hole (not shown) is provided in the dielectric substrate 3, and the power supply pin 1 is passed through the through hole to be electrically connected to the patch-shaped conductor 2. At this time, the conductor around the through hole is removed so that the power supply pin 1 does not make electrical contact with the ground conductor.
- a through hole is provided in the conductor plate 50 so that the conductor plate 50 does not come into electrical contact with the power supply pin 1.
- the size of the conductor plate 50 is slightly larger than that of the planar antenna 40.
- the most common shape of the patch-shaped conductor 2 is substantially square, and resonates at a low frequency in the long side direction and resonates at a high frequency in the short side direction. In other words, it double-resonates and operates as a circularly polarized antenna between two frequencies. Impedance matching is achieved depending on the position of power supply pin 1.
- the main beam direction of the planar antenna means 40 is in the zenith direction (Fig. 6
- the design flexibility is small (there is a slight change depending on the size of the conductor plate 50).
- the helical antenna means 14 has a large degree of design freedom, and the winding conditions can be selected so that the main beam direction has a low elevation angle (Fig. 6 (b)). Combining these and arranging them in a portable radio as shown in Fig. 4 will provide stable communication sensitivity from a high elevation angle (zenith direction) to a low elevation angle (Fig. 6 (c)).
- the helical antenna means 14 is housed and held in the antenna holding cylinder 10 as shown in FIG. Between the portable wireless device 92 and the helical antenna means 14, a signal transmission line (coaxial line 4 or micro The helical antenna means 14 is held at a more distant position above the portable wireless device 92 by interposing a strip line). Helical antenna means (two-line helical) 14 has a main beam direction at a low elevation angle, so by holding it at a position above the portable radio 92, it is possible to prevent gain loss due to the human head. .
- the planar antenna is a quadrilateral microstrip planar antenna, but may be a triangular, pentagonal, circular, or other microstrip antenna.
- the power supply method the rear one-point power supply method has been described, but any method such as the rear two-point power supply, the one-point power supply around the patch, and the two-point power supply may be used. Also, a spiral antenna may be used.
- a two-wire helical antenna is used as for the helical antenna.
- the four-wire helical antenna shown in Fig. 3 (a) above and the one shown in Fig. 3 (b) above A helical antenna such as a one-wire helical antenna or a three-wire helical antenna may be used.
- planar antenna may be fixed to the antenna holding cylinder at the tip of the spiral antenna to prevent gain loss due to the human head of the planar antenna.
- Power is supplied to the flat antenna through a signal transmission path such as a coaxial line inside the antenna holding cylinder.
- a signal transmission path such as a coaxial line inside the antenna holding cylinder.
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU25223/97A AU725567B2 (en) | 1996-04-16 | 1997-04-14 | Portable radio communication device |
EP97916655A EP0895299A4 (en) | 1996-04-16 | 1997-04-14 | PORTABLE RADIO DEVICE |
BR9708753A BR9708753A (pt) | 1996-04-16 | 1997-04-14 | Dispositivo de comunicação de rádio portátil |
CA002233600A CA2233600C (en) | 1996-04-16 | 1997-04-14 | Portable radio communication device |
US09/068,189 US6459916B1 (en) | 1996-04-16 | 1997-04-14 | Portable radio communication device |
NO19984823A NO317995B1 (no) | 1996-04-16 | 1998-10-15 | Baerbar radiokommunikasjonsenhet |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9443296A JPH09284022A (ja) | 1996-04-16 | 1996-04-16 | 携帯無線機 |
JP8094431A JPH09284831A (ja) | 1996-04-16 | 1996-04-16 | 携帯無線機 |
JP8/94431 | 1996-04-16 | ||
JP8/94432 | 1996-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997039493A1 true WO1997039493A1 (fr) | 1997-10-23 |
Family
ID=26435711
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/001290 WO1997039493A1 (fr) | 1996-04-16 | 1997-04-14 | Dispositif radio portable |
Country Status (11)
Country | Link |
---|---|
US (1) | US6459916B1 (ja) |
EP (1) | EP0895299A4 (ja) |
CN (1) | CN1121081C (ja) |
AU (1) | AU725567B2 (ja) |
BR (1) | BR9708753A (ja) |
CA (1) | CA2233600C (ja) |
NO (1) | NO317995B1 (ja) |
NZ (1) | NZ330555A (ja) |
RU (1) | RU2160946C2 (ja) |
TW (1) | TW356625B (ja) |
WO (1) | WO1997039493A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999034476A1 (en) * | 1997-12-31 | 1999-07-08 | Ericsson, Inc. | Retractable radiotelephone antennas with extended feeds |
EP0940924A2 (en) * | 1998-03-03 | 1999-09-08 | Nec Corporation | Mobile terminal equipment for satellite and land mobile radio communication |
GB2350235A (en) * | 1999-05-18 | 2000-11-22 | Neoterics Ltd | Reducing electromagnetic radiation in portable RF devices |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3481783B2 (ja) * | 1996-07-25 | 2003-12-22 | 京セラ株式会社 | 携帯無線機 |
US6222505B1 (en) * | 1997-12-03 | 2001-04-24 | Mitsubishi Denki Kabushiki Kaisha | Composite antenna apparatus |
US6611691B1 (en) * | 1998-12-24 | 2003-08-26 | Motorola, Inc. | Antenna adapted to operate in a plurality of frequency bands |
US6563476B1 (en) * | 1998-09-16 | 2003-05-13 | Siemens Ag | Antenna which can be operated in a number of frequency bands |
JP3180784B2 (ja) * | 1998-11-17 | 2001-06-25 | 日本電気株式会社 | 反射板を有する携帯端末装置 |
US6563042B2 (en) * | 1999-05-21 | 2003-05-13 | Intel Corporation | Radiating enclosure |
SE517564C2 (sv) | 1999-11-17 | 2002-06-18 | Allgon Ab | Antennanordning för en bärbar radiokommunikationsanordning, bärbar radiokommunikationsanordning med sådan antennanordning och metod för att driva nämnda radiokommunikationsanordning |
JP2002261525A (ja) * | 2001-02-27 | 2002-09-13 | Honda Motor Co Ltd | 二輪車用gpsアンテナユニット |
CN1394055A (zh) * | 2001-06-28 | 2003-01-29 | 株式会社东芝 | 移动终端装置 |
US6707431B2 (en) | 2001-07-20 | 2004-03-16 | Samsung Electronics Co., Ltd. | Dual antenna capable of controlling radiation characteristics in a mobile communication terminal |
EP1329985A3 (en) * | 2002-01-18 | 2004-12-22 | Matsushita Electric Industrial Co., Ltd. | Antenna apparatus; communication apparatus; and antenna apparatus designing method |
JP4181004B2 (ja) * | 2003-09-29 | 2008-11-12 | 株式会社ヨコオ | アンテナ構造 |
US7592958B2 (en) * | 2003-10-22 | 2009-09-22 | Sony Ericsson Mobile Communications, Ab | Multi-band antennas and radio apparatus incorporating the same |
KR100575787B1 (ko) * | 2004-06-15 | 2006-05-03 | 엘지전자 주식회사 | 위성 디지털 멀티미디어 방송 수신용 다이버시티 안테나를구비한 이동통신 단말기 |
JP4271647B2 (ja) * | 2004-11-01 | 2009-06-03 | 三菱電機株式会社 | 表示装置 |
US7734631B2 (en) * | 2005-04-25 | 2010-06-08 | Microsoft Corporation | Associating information with an electronic document |
US8639302B2 (en) * | 2007-07-04 | 2014-01-28 | Blackberry Limited | Antenna spacer for a handheld communication device |
CN101783696A (zh) * | 2009-01-20 | 2010-07-21 | 广升运有限公司 | 免干扰天线模块与使用其的WiFi网络系统 |
US8487817B2 (en) * | 2009-02-27 | 2013-07-16 | Dearborn Group, Inc. | RF antenna end panel |
KR20110062100A (ko) * | 2009-12-02 | 2011-06-10 | 엘지전자 주식회사 | 안테나 장치 및 이를 포함하는 이동 단말기 |
CN102904991A (zh) | 2012-10-10 | 2013-01-30 | 北京小米科技有限责任公司 | 一种挂件以及终端 |
US10038235B2 (en) * | 2013-03-05 | 2018-07-31 | Maxtena, Inc. | Multi-mode, multi-band antenna |
US9466870B2 (en) | 2014-03-31 | 2016-10-11 | Elster Solutions, Llc | Electricity meter antenna configuration |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193707U (ja) * | 1987-05-30 | 1988-12-13 | ||
JPH0537431A (ja) * | 1991-07-26 | 1993-02-12 | Toshiba Corp | 衛星通信用アンテナダイバーシテイ装置 |
JPH06502286A (ja) * | 1990-09-26 | 1994-03-10 | ガーミン・コーポレーション | プリントしたクアドリファイラ・ヘリカル・アンテナを備えた個人用位置決定衛星ナビゲータ |
JPH06164232A (ja) * | 1992-11-16 | 1994-06-10 | N T T Idou Tsuushinmou Kk | アンテナ装置 |
JPH06188801A (ja) * | 1992-05-26 | 1994-07-08 | Sony Corp | 携帯電話機 |
JPH06268547A (ja) * | 1993-03-10 | 1994-09-22 | Mitsubishi Electric Corp | 携帯無線機用アンテナ装置 |
JPH06338816A (ja) * | 1993-05-28 | 1994-12-06 | Sony Corp | 携帯無線機 |
JPH0865021A (ja) * | 1994-07-25 | 1996-03-08 | Motorola Inc | アンテナ位置決め装置 |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3906509A (en) | 1974-03-11 | 1975-09-16 | Raymond H Duhamel | Circularly polarized helix and spiral antennas |
US4008479A (en) | 1975-11-03 | 1977-02-15 | Chu Associates, Inc. | Dual-frequency circularly polarized spiral antenna for satellite navigation |
US4011567A (en) | 1976-01-28 | 1977-03-08 | Rca Corporation | Circularly polarized, broadside firing, multihelical antenna |
US4527163A (en) * | 1983-04-06 | 1985-07-02 | California Institute Of Technology | Omnidirectional, circularly polarized, cylindrical microstrip antenna |
US5255001A (en) * | 1989-08-29 | 1993-10-19 | Nec Corporation | Antenna system for portable radio apparatus |
JP2586675B2 (ja) * | 1990-02-27 | 1997-03-05 | 国際電信電話株式会社 | 4線巻ヘリカルアンテナ |
GB2246910B (en) * | 1990-08-02 | 1994-12-14 | Polytechnic Electronics Plc | A radio frequency antenna |
US5349365A (en) * | 1991-10-21 | 1994-09-20 | Ow Steven G | Quadrifilar helix antenna |
EP0611490B1 (en) * | 1991-11-08 | 1998-10-07 | Teledesic LLC | Terrestrial antennas for satellite communication system |
US5359340A (en) | 1992-09-30 | 1994-10-25 | Fujitsu Limited | Helical antenna for portable radio communication equipment |
US5463406A (en) * | 1992-12-22 | 1995-10-31 | Motorola | Diversity antenna structure having closely-positioned antennas |
JPH0779189A (ja) | 1993-06-30 | 1995-03-20 | Nec Corp | 移動通信システム |
US5403197A (en) * | 1993-08-30 | 1995-04-04 | Rockwell International Corporation | Antenna extender apparatus |
CA2148125C (en) * | 1993-09-20 | 1998-12-08 | Paul John Moller | Antenna arrangement for a wireless communication device |
JPH07106999A (ja) | 1993-09-29 | 1995-04-21 | N T T Idou Tsuushinmou Kk | 携帯無線機 |
FI99220C (fi) * | 1995-04-05 | 1997-10-27 | Lk Products Oy | Antenni, erityisesti matkapuhelinantenni, ja menetelmä antennin valmistamiseksi |
US5701591A (en) * | 1995-04-07 | 1997-12-23 | Telecommunications Equipment Corporation | Multi-function interactive communications system with circularly/elliptically polarized signal transmission and reception |
WO1996034425A1 (en) * | 1995-04-26 | 1996-10-31 | Westinghouse Electric Corporation | Helical antenna having a parasitic element and a method of using the same |
DE69522668T2 (de) * | 1995-05-17 | 2002-06-20 | Murata Manufacturing Co | Oberflächenmontierbares Antennensystem |
FI99219C (fi) * | 1995-06-06 | 1997-10-27 | Nokia Mobile Phones Ltd | Kahdella taajuusalueella toimiva antenni |
US5606332A (en) * | 1995-08-21 | 1997-02-25 | Motorola, Inc. | Dual function antenna structure and a portable radio having same |
JP3318475B2 (ja) * | 1995-09-29 | 2002-08-26 | 京セラ株式会社 | 共用アンテナ |
JP3122017B2 (ja) * | 1995-10-11 | 2001-01-09 | 京セラ株式会社 | 複合アンテナ装置 |
GB9601250D0 (en) * | 1996-01-23 | 1996-03-27 | Symmetricom Inc | An antenna |
JP3297601B2 (ja) * | 1996-04-25 | 2002-07-02 | 京セラ株式会社 | 複合アンテナ |
JPH10107542A (ja) * | 1996-09-27 | 1998-04-24 | Yokowo Co Ltd | アンテナ装置 |
JP3580654B2 (ja) * | 1996-12-04 | 2004-10-27 | 京セラ株式会社 | 共用アンテナおよびこれを用いた携帯無線機 |
US5909196A (en) * | 1996-12-20 | 1999-06-01 | Ericsson Inc. | Dual frequency band quadrifilar helix antenna systems and methods |
US6025816A (en) * | 1996-12-24 | 2000-02-15 | Ericsson Inc. | Antenna system for dual mode satellite/cellular portable phone |
US6021317A (en) * | 1997-04-30 | 2000-02-01 | Ericsson Inc. | Dual antenna radiotelephone systems including an antenna-management matrix switch and associated methods of operation |
US6052088A (en) * | 1997-08-26 | 2000-04-18 | Centurion International, Inc. | Multi-band antenna |
US5923305A (en) * | 1997-09-15 | 1999-07-13 | Ericsson Inc. | Dual-band helix antenna with parasitic element and associated methods of operation |
US6160512A (en) * | 1997-10-20 | 2000-12-12 | Nec Corporation | Multi-mode antenna |
FI974350A (fi) * | 1997-11-27 | 1999-05-28 | Nokia Mobile Phones Ltd | Monilankaiset helix-antennit matkaviestinlaitteita varten |
SE511450C2 (sv) * | 1997-12-30 | 1999-10-04 | Allgon Ab | Antennsystem för cirkulärt polariserade radiovågor innefattande antennanordning och gränssnittsnätverk |
AU761038B2 (en) * | 1998-04-02 | 2003-05-29 | Kyocera Corporation | Plane antenna, and portable radio using thereof |
US5969681A (en) * | 1998-06-05 | 1999-10-19 | Ericsson Inc. | Extended bandwidth dual-band patch antenna systems and associated methods of broadband operation |
US6154184A (en) * | 1998-06-30 | 2000-11-28 | Mitsubishi Denki Kabushiki Kaisha | Antenna apparatus for portable phones |
US6163302A (en) * | 1999-10-29 | 2000-12-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Flexible dual-mode antenna for mobile stations |
US6229488B1 (en) * | 2000-09-08 | 2001-05-08 | Emtac Technology Corp. | Antenna for receiving signals from GPS and GSM |
-
1997
- 1997-04-14 AU AU25223/97A patent/AU725567B2/en not_active Ceased
- 1997-04-14 US US09/068,189 patent/US6459916B1/en not_active Expired - Fee Related
- 1997-04-14 EP EP97916655A patent/EP0895299A4/en not_active Withdrawn
- 1997-04-14 RU RU98118931/09A patent/RU2160946C2/ru not_active IP Right Cessation
- 1997-04-14 WO PCT/JP1997/001290 patent/WO1997039493A1/ja active IP Right Grant
- 1997-04-14 NZ NZ330555A patent/NZ330555A/xx not_active IP Right Cessation
- 1997-04-14 CN CN97192413A patent/CN1121081C/zh not_active Expired - Fee Related
- 1997-04-14 BR BR9708753A patent/BR9708753A/pt not_active IP Right Cessation
- 1997-04-14 CA CA002233600A patent/CA2233600C/en not_active Expired - Lifetime
- 1997-04-15 TW TW086104827A patent/TW356625B/zh active
-
1998
- 1998-10-15 NO NO19984823A patent/NO317995B1/no unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63193707U (ja) * | 1987-05-30 | 1988-12-13 | ||
JPH06502286A (ja) * | 1990-09-26 | 1994-03-10 | ガーミン・コーポレーション | プリントしたクアドリファイラ・ヘリカル・アンテナを備えた個人用位置決定衛星ナビゲータ |
JPH0537431A (ja) * | 1991-07-26 | 1993-02-12 | Toshiba Corp | 衛星通信用アンテナダイバーシテイ装置 |
JPH06188801A (ja) * | 1992-05-26 | 1994-07-08 | Sony Corp | 携帯電話機 |
JPH06164232A (ja) * | 1992-11-16 | 1994-06-10 | N T T Idou Tsuushinmou Kk | アンテナ装置 |
JPH06268547A (ja) * | 1993-03-10 | 1994-09-22 | Mitsubishi Electric Corp | 携帯無線機用アンテナ装置 |
JPH06338816A (ja) * | 1993-05-28 | 1994-12-06 | Sony Corp | 携帯無線機 |
JPH0865021A (ja) * | 1994-07-25 | 1996-03-08 | Motorola Inc | アンテナ位置決め装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0895299A4 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999034476A1 (en) * | 1997-12-31 | 1999-07-08 | Ericsson, Inc. | Retractable radiotelephone antennas with extended feeds |
US6097934A (en) * | 1997-12-31 | 2000-08-01 | Ericsson Inc. | Retractable radiotelephone antennas with extended feeds |
EP0940924A2 (en) * | 1998-03-03 | 1999-09-08 | Nec Corporation | Mobile terminal equipment for satellite and land mobile radio communication |
EP0940924A3 (en) * | 1998-03-03 | 2003-06-04 | Nec Corporation | Mobile terminal equipment for satellite and land mobile radio communication |
GB2350235A (en) * | 1999-05-18 | 2000-11-22 | Neoterics Ltd | Reducing electromagnetic radiation in portable RF devices |
Also Published As
Publication number | Publication date |
---|---|
CA2233600A1 (en) | 1997-10-23 |
NZ330555A (en) | 2000-12-22 |
TW356625B (en) | 1999-04-21 |
NO984823L (no) | 1998-12-16 |
US6459916B1 (en) | 2002-10-01 |
CN1121081C (zh) | 2003-09-10 |
RU2160946C2 (ru) | 2000-12-20 |
BR9708753A (pt) | 1999-08-03 |
NO984823D0 (no) | 1998-10-15 |
CA2233600C (en) | 2004-08-24 |
NO317995B1 (no) | 2005-01-17 |
CN1212078A (zh) | 1999-03-24 |
EP0895299A4 (en) | 1999-07-21 |
AU2522397A (en) | 1997-11-07 |
EP0895299A1 (en) | 1999-02-03 |
AU725567B2 (en) | 2000-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO1997039493A1 (fr) | Dispositif radio portable | |
US6380903B1 (en) | Antenna systems including internal planar inverted-F antennas coupled with retractable antennas and wireless communicators incorporating same | |
US6124831A (en) | Folded dual frequency band antennas for wireless communicators | |
US6204826B1 (en) | Flat dual frequency band antennas for wireless communicators | |
KR100637346B1 (ko) | 무선통신장치용 안테나 시스템 | |
JP3580654B2 (ja) | 共用アンテナおよびこれを用いた携帯無線機 | |
KR100299298B1 (ko) | 휴대용 통신장비의 안테나 장치 | |
JP4227141B2 (ja) | アンテナ装置 | |
US5600341A (en) | Dual function antenna structure and a portable radio having same | |
KR20000019433A (ko) | 송수신 일체형 마이크로 스트립 패치 안테나 | |
WO2002063713A2 (en) | Notch antennas and wireless communicators incorporating same | |
KR20010075440A (ko) | 무선통신장치 및 안테나 시스템 | |
KR100589296B1 (ko) | 이동 가능한 안테나를 구비한 무선 장치 | |
US20020123312A1 (en) | Antenna systems including internal planar inverted-F Antenna coupled with external radiating element and wireless communicators incorporating same | |
WO2004025781A1 (ja) | ループアンテナ | |
JP2006527509A (ja) | 中央給電構造を有する移動通信端末機内蔵型アンテナ | |
JP2001251117A (ja) | アンテナ装置 | |
JP4971212B2 (ja) | ヘリカルホイップアンテナ | |
KR100459969B1 (ko) | 휴대용무선통신장치 | |
KR100618538B1 (ko) | 미끄럼 커넥터수단을 구비한 안테나장치 | |
JPH09284831A (ja) | 携帯無線機 | |
JPH09284022A (ja) | 携帯無線機 | |
KR100343529B1 (ko) | 무선 데이터통신용 단말기에 내장하기 위한 다이폴 안테나 | |
KR100538185B1 (ko) | 다중 밴드 내장형 안테나 및 이를 구비하는 무선 통신 장치 | |
JPH09223994A (ja) | 携帯無線機 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 97192413.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR CA CN KR NO NZ RU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): CH DE FI FR GB IT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09068189 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1997916655 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 330555 Country of ref document: NZ |
|
ENP | Entry into the national phase |
Ref document number: 2233600 Country of ref document: CA Ref document number: 2233600 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1019980708248 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 1997916655 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1019980708248 Country of ref document: KR |
|
WWG | Wipo information: grant in national office |
Ref document number: 1019980708248 Country of ref document: KR |