WO2000030268A1 - Portable radiotelephones including patch antennas - Google Patents
Portable radiotelephones including patch antennas Download PDFInfo
- Publication number
- WO2000030268A1 WO2000030268A1 PCT/US1999/021124 US9921124W WO0030268A1 WO 2000030268 A1 WO2000030268 A1 WO 2000030268A1 US 9921124 W US9921124 W US 9921124W WO 0030268 A1 WO0030268 A1 WO 0030268A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- radiotelephone
- patch antenna
- global position
- processor
- portable
- Prior art date
Links
Classifications
-
- 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
- H04B1/3805—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 with built-in auxiliary receivers
-
- 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
Definitions
- the present invention relates to the field of communications and more particularly to radiotelephone communications.
- U.S. Patent No. 5,235,633 to Dennison et al. discusses a cellular telephone system that uses the position of a mobile unit to make call management decisions.
- each mobile unit includes a global positioning system (GPS) receiver that receives information from a constellation of satellites to determine the precise location of the mobile unit. This position information is relayed to the cell site initially managing the mobile unit, and the mobile unit is handed off to a cell site that is most appropriate for the call.
- GPS global positioning system
- U.S. Patent No. 5,625,668 to Loomis et al. discusses a positioning reporting cellular telephone.
- the cellular telephone of this patent includes a global positioning system (GPS) receiver and a cellular transceiver.
- GPS global positioning system
- a data processing facility converts latitude, longitude, velocity, and bearing information provided by the GPS receiver into meaningful descriptors that are spoken with a speech synthesizer.
- Portable radiotelephones including GPS receivers have typically used an additional antenna to provide GPS reception.
- quadrafilar helix antennas extending from the radiotelephone body have been used.
- the size constraints on these antennas may reduce the gain available using quadrafilar helix antennas.
- these antennas may be oriented at less than ideal angles and/or may be too close to the user's body when used during telephone communications further reducing gain. Accordingly, there continues to exist a need in the art for improved antennas for GPS receivers incorporated into radiotelephones.
- a radiotelephone including a patch antenna including a conductive layer for receiving electromagnetic signals.
- the patch antenna can be used to receive global position signals in a radiotelephone including global position (GPS) features. Accordingly, the patch antenna can be included in/on the radiotelephone body without significantly affecting the dimensions thereof.
- GPS global position
- patch antennas have not generally been used in portable radiotelephones because the vertical orientation of the radiotelephone against the user's head, as occurs during normal radiotelephone use, is not desirable for patch antenna reception and gain.
- the inventors have realized, however, that a patch antenna can be used advantageously during radiotelephone GPS operations because the radiotelephone can be held horizontally away from the user's head.
- the patch antenna can be added to the radiotelephone without significantly affecting the dimensions of the radiotelephone because the patch antenna can be incorporated substantially parallel to a face of the radiotelephone body.
- a portable radiotelephone can include a transceiver, a processor, a speaker, a microphone, and a patch antenna.
- the transceiver transmits and receives radiotelephone communications
- the processor processes the radiotelephone communications transmitted and received by the transceiver.
- the speaker generates sound responsive to the received radiotelephone communications
- the microphone generates electrical signals for the transmitted radiotelephone communications responsive to outside sound.
- the patch antenna includes a conductive layer coupled to at least one of the processor and the transceiver.
- the patch antenna can be a global position patch antenna that receives electromagnetic global position signals from global position satellites
- the processor can include a global position receiver that determines a position of the radiotelephone based on the received electromagnetic global position signals.
- the portable radiotelephone can include a radiotelephone body housing the speaker, the microphone, the transceiver, and the processor.
- an opening can be provided through the radiotelephone body adjacent the speaker to allow the generated sound from the speaker to pass therethrough
- the patch antenna can be located adjacent the speaker with an opening therein aligned with the opening in the face of the radiotelephone body to allow the generated sound from the speaker to pass therethrough.
- the patch antenna can have an opening therein aligned with another opening in the radiotelephone body to allow outside sound to pass through to the microphone.
- the patch antenna can be adjacent to a keypad and have an opening therein aligned to allow a key of the keypad to move therethrough.
- the radiotelephone can also include a display coupled to the processor wherein the processor generates a message on the display during global position calculations to encourage a horizontal orientation of the patch antenna.
- the display might instruct the user to wait with the radiotelephone in a horizontal position held away from the user's body until the global position calculations have been completed.
- the patch antenna can be provided, for example, by a conductive layer on a dielectric substrate inside the radiotelephone body.
- the conductive layer can be provided on a surface of the radiotelephone body thereby eliminating the need for a separate dielectric layer.
- the radiotelephone body can be formed of a plastic that does not significantly attenuate the global position signals received from the global position satellites, and the conductive layer of the patch antenna can be formed as a part of the radiotelephone body.
- the conductive layer can be formed on either an inside or outside surface of the radiotelephone body.
- the patch antenna can be provided on a flip portion of the radiotelephone body.
- the radiotelephones, and methods of the present invention can thus be used to provide a global position antenna within a portable radiotelephone without significantly affecting the dimensions of the radiotelephone.
- the radiotelephones, and methods of the present invention can also provide improved reception of GPS signals.
- Figure 1 is a block diagram of a radiotelephone including a patch antenna according to the present invention.
- Figure 2A is a perspective view of a radiotelephone including a patch antenna adjacent to a speaker according to the present invention.
- Figures 2B-C are cross sectional views of alternate patch antenna structures for the patch antenna of Figure 2A.
- Figure 3A is a perspective view of a radiotelephone including a patch antenna adjacent to a keypad according to the present invention.
- Figures 3B-C are cross sectional views of alternate patch antenna structures for the patch antenna of Figure 3A.
- Figure 4A is a perspective view of a radiotelephone including a patch antenna on a flip portion according to the present invention.
- Figures 4B-C re cross sectional views of alternate patch antenna structures for the patch antenna of Figure 4A.
- a cellular radiotelephone including a global positioning system (GPS) receiver is illustrated in Figure 1.
- the cellular radiotelephone includes a transceiver 21 for transmitting and receiving cellular radiotelephone communications through antenna 23, and a processor 25 for processing the communications transmitted and received by the transceiver 21.
- a user interface 27 is coupled with the processor, and the user interface can include a keypad 29, a display 31 , a microphone 33, and a speaker 35.
- the radiotelephone can accept user speech through the microphone 33 for transmission to a radiotelephone communications system, and reproduce speech received from a distant party over the radiotelephone communications system using the speaker 35.
- Radiotelephone information can be provided to the user through the display 31, and user input can be accepted through the keypad 29.
- the radiotelephone of the present invention includes a GPS receiver 37 and a GPS patch antenna 39.
- the GPS receiver 37 can thus accurately determine the geographic position of the radiotelephone, and provide the geographic information to the radiotelephone processor 25. Accordingly, this geographic information can be provided to the radiotelephone user either visually through the display 31 or audibly through the speaker 35.
- the geographic information can also be transmitted through the transceiver 21 and the antenna 23 to the radiotelephone communications system.
- the geographic information can be transmitted during a "911" call to assist an emergency response by police, fire, and/or rescue personnel.
- the geographic information can also be used, for example, to make call management decisions as discussed in U.S. Patent No. 5,235,633, spoken with a speech synthesizer as discussed in U.S. Patent No. 5,625,668, or otherwise communicated to the user of the radiotelephone.
- the GPS receiver 37, the transceiver 21 , and the processor 25 can be provided separately as shown in Figure 1. Alternately, two or more of these elements can be provided together.
- the processor can be defined as including one or both of the GPS receiver and the transceiver, and/or the transceiver can be defined as including the GPS receiver.
- the radiotelephone of the present invention can include the GPS patch antenna without significantly affecting the dimensions of the radiotelephone.
- the radiotelephone includes a body 41 housing the GPS patch antenna 39A, the display 31, the keypad 29, the microphone 33, and the antenna 23 as shown.
- the GPS patch antenna can include a conductive layer, such as a metal layer on a dielectric layer, wherein the conductive layer is approximately 1.0 inch square and the metal layer and the dielectric layer together have a thickness of approximately 0.2 inches.
- the housing also encloses the GPS receiver 37, the transceiver 21, the processor 25, and the speaker 35 which are not visible in the perspective view of Figure 2A.
- the radiotelephone body includes a front face 43 which is held to the user's head when talking.
- the speaker 35 is mounted adjacent the front face 43, and holes 45 are provided in the front face adjacent the speaker to allow sound from the speaker to pass therethrough.
- the microphone can be provided adjacent the front face with holes 47 being provided through the front face to allow sound to pass through to the microphone.
- the radiotelephone body of Figure 2A includes a moveable flip portion 49 which extends the front face 43 when opened as shown, and the microphone 33 can be included in the main portion of the radiotelephone body.
- a channel 51 through the flip portion 49 can be used to conduct sound from the holes 47 to the microphone 33.
- the flip portion 49 covers a portion of the radiotelephone body.
- the front face of the radiotelephone body can also include the display 31 and the keypad 29. Accordingly, the flip portion 49 can cover the keypad and/or the display when closed.
- the patch antenna 39A includes a conductive layer substantially parallel to the front face of the radiotelephone body. With dimensions of approximately 1.0 inches square and 0.2 inches thick, the patch antenna can be incorporated in the radiotelephone of the present invention without significantly affecting the dimensions of the radiotelephone. As shown in Figure 2A, the patch antenna can be located adjacent the speaker with openings therein aligned with the openings 45 in the front face of the radiotelephone body to allow sound to pass therethrough. These relatively small openings (or holes) in the patch antenna can be provided without significantly affecting the antenna performance. Furthermore, the antenna can be tuned to compensate for the addition of these holes. Alternate arrangements of the patch antenna 39A are illustrated in the cross sections of Figures 2B-2C.
- the patch antenna includes a. conductive layer 53 on a dielectric layer 55 mounted between the speaker 35 and the front face 43 of the radiotelephone body. As shown, the openings 45 extend through the front face 43 of the radiotelephone body, the conductive antenna layer 53, the dielectric layer 55, and conductive ground layer 56. Accordingly, a conventional patch antenna can be used without significantly affecting the dimensions of the radiotelephone.
- the front face of the radiotelephone body is formed from a plastic or other material which does not significantly attenuate the GPS signals (typically 1575.42 MHz) received by the patch antenna.
- a typical connection to a patch antenna is made with coaxial cable 58.
- the center conductor of 58 electrically connects to conductive antenna layer 53 and the ground shield of 58 electrically connects to conductive ground layer 56. It is usually good practice (but not necessary) to make the ground layer 56 of the patch as large as is convenient. The exact size and shape of layer 53 tunes the antenna. The exact placement of the connection between the patch antenna and coaxial cable 58 determines impedance matching and antenna polarization.
- the patch antenna can include a conductive antenna layer 53" formed on the outside surface of the front face of the radiotelephone body opposite the speaker 35.
- a protective layer 57 can be formed on the conductive antenna layer 53" to reduce wear of the conductive layer.
- the openings 45 extend through the protective layer 57, the conductive antenna layer 53", the front face 43, and conductive ground layer 56", allowing sound from the speaker to pass therethrough.
- the material and thickness of front face 43 should be consistent with the electrical characteristics of a patch antenna.
- the dielectric constant and thickness affect the size of layer 53" and the useable bandwidth of the antenna.
- the GPS patch antenna 39A discussed above is thus oriented substantially parallel to the front face of the radiotelephone body.
- the radiotelephone is preferably held with the front face substantially parallel to the ground when receiving GPS signals from GPS satellites.
- This orientation can provide a circular polarization for the patch antenna that matches the circular polarization of signals transmitted by the GPS satellites.
- This orientation can be facilitated during GPS operations using messages on the display 31.
- the processor can generate explicit instructions on the display to hold the telephone in the desired orientation (front face up and away from the user's body) while the location is being determined.
- this orientation can be encouraged more subtly so that the user is less likely to notice the delay of determining the location.
- the processor can generate any message on the display that will hold the user's attention. Because the phone is held in approximately the desired orientation when the user is reading the display, the patch antenna can receive the GPS signals used for location determination. Once the location has been determined, the processor can generate a message on the display instructing the user to continue with normal operations.
- FIG. 3A An alternate arrangement of the patch antenna 39B is illustrated in Figure 3A.
- the patch antenna 39B provided adjacent the keypad 29 including a plurality of keys 29a, key contacts 29b, PC board substrate 29c, and openings are provided through the front face 43 of the radiotelephone body and the patch antenna 39B to allow movement of the keys 29a therethrough and to allow contact between the keys 29a and the key contacts 29b inside the radiotelephone body.
- the radiotelephone also includes an antenna 23, openings 45 in the radiotelephone body allowing sound from the speaker to pass therethrough, a display 31, a microphone 33, a flip portion 49, and openings 47 and channel 51 allowing passage of sound to the microphone.
- Various patch antenna structures for patch antenna 39B are illustrated in Figures 3B-C.
- the patch antenna 39B can include a conductive antenna layer 63 on a dielectric layer 65, along with conductive ground layer 64 and coaxial cable 58 attached to layers 63 and 64, and the patch antenna can be mounted along the inside surface of the front face 43 of the radiotelephone body adjacent the keypad 29 including keys 29a. Openings through the front face 43, the conductive layer 63, the dielectric layer 65, and the ground layer 64 provide movement of the keys 29a therethrough as well as contact between the keys and the keypad PC board substrate 29c. The ground layer 64 of the patch antenna can be disrupted by keypad contacts. (and traces) 29b with little impact.
- the center conductor of coaxial cable 58 connects to layer 63 and the shield of cable 58 connects to layer 64.
- the conductive layer 63" can be formed on the outside surface of the front face 43 of the radiotelephone body as shown in Figure 3C.
- the conductive layer 63" can be formed on the outside surface of the front face, and a protective layer 67 can be formed on the conductive layer 63". Openings through the front face, the conductive layer, the protective layer, and the conductive ground layer 64" provide for movement of the keys 29a and/or keypad contacts 29b therethrough.
- FIG. 4A Another alternate arrangement of the patch antenna 39C is illustrated in Figure 4A.
- the patch antenna 39C is provided on the flip portion 49 of the front face of the radiotelephone body, and openings are provided through the patch antenna 39C to allow passage of sound therethrough to the microphone 33.
- the radiotelephone also includes an antenna 23, openings 45 in the radiotelephone body allowing sound from the speaker to pass therethrough, a display 31 , a microphone 33, a flip portion 49, and openings 47 and channel 51 allowing passage of sound to the microphone.
- Various patch antenna structures for patch antenna 39C are illustrated in the cross sectional views of Figures 4B-C.
- the patch antenna 39C can include a conductive antenna layer 73, a dielectric layer 75, and a conductive ground layer 76 adjacent the front face of the flip portion 49 of the radiotelephone body. Moreover, the openings 47 extend through the front face 43, the conductive layer 73, the dielectric layer 75, and conductive ground layer 76 allowing the conduction of sound therethrough to the channel 51 and the microphone 33.
- the electrical connection to patch antenna 39c is via coaxial cable 58.
- the center conductor of cable 58 connects to layer 73 and the shield of 58 connects to layer 76. Cable 58 can be routed physically in cavity 51.
- the conductive layers 73" and 76" along with dielectric layer 75 can be formed on the surface of the front face of the flip portion, and a protective layer 77 can be formed on the conductive layer.
- the openings 47 through the protective layer 77, the conductive layers . 73" and 76" and dielectric layer 75, and the front face of the flip portion allow conduction of sound therethrough to the channel 51 and the microphone 33.
- the patch antenna can be provided without significantly affecting the dimensions of the radiotelephone.
- holes in the patch antenna allow placement of the antenna adjacent the speaker, the microphone, or the keypad, and any affect of the holes on the performance of the patch antenna can be reduced by tuning the antenna.
- the patch antenna in the radiotelephone can provide circular polarization matching that of GPS signals transmitted by GPS satellites. The patch antenna of the present invention can thus provide improved performance over GPS antennas previously used in radiotelephones including GPS functions.
- radiotelephones including patch antennas according to the present invention have been discussed with reference to cellular radiotelephones
- the patch antennas of the present invention can be used with other radiotelephones such as satellite radiotelephones or dual mode radiotelephones capable of communicating with terrestrial and satellite communications systems, as well as radiotelephones capable of communicating with other types of terrestrial communications systems.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000583174A JP2002530924A (en) | 1998-11-17 | 1999-09-14 | Portable radio telephone with patch antenna |
DE19983728T DE19983728T1 (en) | 1998-11-17 | 1999-09-14 | Portable radiotelephones with patch antennas |
AU60399/99A AU6039999A (en) | 1998-11-17 | 1999-09-14 | Portable radiotelephones including patch antennas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/193,587 US6411826B1 (en) | 1998-11-17 | 1998-11-17 | Portable radiotelephones including patch antennas having openings therein |
US09/193,587 | 1998-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000030268A1 true WO2000030268A1 (en) | 2000-05-25 |
Family
ID=22714246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/021124 WO2000030268A1 (en) | 1998-11-17 | 1999-09-14 | Portable radiotelephones including patch antennas |
Country Status (7)
Country | Link |
---|---|
US (1) | US6411826B1 (en) |
JP (1) | JP2002530924A (en) |
CN (1) | CN1326619A (en) |
AU (1) | AU6039999A (en) |
DE (1) | DE19983728T1 (en) |
MY (1) | MY122461A (en) |
WO (1) | WO2000030268A1 (en) |
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KR100342510B1 (en) * | 2000-01-17 | 2002-06-28 | 윤종용 | Flip-type terminal with slim-type microstrip patch antenna for gps |
US6862433B2 (en) * | 2001-02-06 | 2005-03-01 | Motorola, Inc. | Antenna system for a wireless information device |
FI117233B (en) * | 2001-06-06 | 2006-07-31 | Flextronics Odm Luxembourg Sa | A method for improving the acoustic performance of a terminal and a terminal |
KR100382938B1 (en) | 2001-06-21 | 2003-05-09 | 엘지전자 주식회사 | Folder type mobile phone added sub-display |
EP1329985A3 (en) * | 2002-01-18 | 2004-12-22 | Matsushita Electric Industrial Co., Ltd. | Antenna apparatus; communication apparatus; and antenna apparatus designing method |
US6795770B1 (en) * | 2002-04-02 | 2004-09-21 | Garmin Ltd. | Portable navigation device with instant on configuration on navigational display |
US7299129B2 (en) * | 2002-04-02 | 2007-11-20 | Garmin Ltd. | Portable navigation device with releasable antenna |
US7099775B1 (en) | 2002-04-02 | 2006-08-29 | Garmin Ltd. | Portable navigation device with instant on configuration on navigational display |
US7167130B2 (en) * | 2003-08-01 | 2007-01-23 | Sony Ericsson Mobile Communications Ab | Internal antenna and flat panel speaker assemblies and mobile terminals including the same |
US7305260B2 (en) * | 2004-01-30 | 2007-12-04 | Nokia Corporation | Function specific interchangeable cover piece for a mobile communication device |
KR100677428B1 (en) * | 2005-01-29 | 2007-02-02 | 엘지전자 주식회사 | Mobile communication termina |
CA2664166A1 (en) * | 2006-09-21 | 2008-03-27 | Noninvasive Medical Technologies, Inc. | Antenna for thoracic radio interrogation |
WO2008105837A2 (en) * | 2006-09-21 | 2008-09-04 | Noninvasive Medical Technologies, Inc. | Method of processing thoracic reflected radio interrogation signals |
WO2008036396A2 (en) * | 2006-09-21 | 2008-03-27 | Noninvasive Medical Technologies, Inc. | Apparatus and method for non-invasive thoracic radio interrogation |
US8134460B2 (en) * | 2006-09-21 | 2012-03-13 | Noninvasive Medical Technologies, Inc. | Relative positioning system method |
US20140184451A1 (en) * | 2009-10-09 | 2014-07-03 | Htc Corporation | Handheld device |
US8456366B2 (en) * | 2010-04-26 | 2013-06-04 | Sony Corporation | Communications structures including antennas with separate antenna branches coupled to feed and ground conductors |
US9886066B2 (en) * | 2010-07-02 | 2018-02-06 | BlackBerrry Limited | Mobile wireless communications device including a keyboard assembly for reducing SAR and related methods |
DE102021200159A1 (en) * | 2021-01-11 | 2022-07-14 | Robert Bosch Gesellschaft mit beschränkter Haftung | User interface device and device with the user interface device |
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- 1999-09-14 JP JP2000583174A patent/JP2002530924A/en active Pending
- 1999-09-14 AU AU60399/99A patent/AU6039999A/en not_active Abandoned
- 1999-09-14 DE DE19983728T patent/DE19983728T1/en not_active Withdrawn
- 1999-09-14 CN CN99813321.3A patent/CN1326619A/en active Pending
- 1999-10-23 MY MYPI99004586A patent/MY122461A/en unknown
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WO2002063713A2 (en) * | 2000-10-27 | 2002-08-15 | Telefonaktiebolaget L.M. Ericsson (Publ) | Notch antennas and wireless communicators incorporating same |
WO2002063713A3 (en) * | 2000-10-27 | 2002-10-10 | Ericsson Telefon Ab L M | Notch antennas and wireless communicators incorporating same |
WO2002050944A1 (en) * | 2000-12-19 | 2002-06-27 | Siemens Aktiengesellschaft | Communication terminal with antenna |
US6927732B2 (en) | 2000-12-19 | 2005-08-09 | Siemens Aktiengesellschaft | Communication terminal with antenna |
EP1378960A1 (en) * | 2001-04-13 | 2004-01-07 | Matsushita Electric Industrial Co., Ltd. | Mobile radio device |
WO2002084792A1 (en) | 2001-04-13 | 2002-10-24 | Matsushita Electric Industrial Co., Ltd. | Mobile radio device |
EP1378960A4 (en) * | 2001-04-13 | 2010-02-24 | Panasonic Corp | Mobile radio device |
WO2003003506A1 (en) * | 2001-06-29 | 2003-01-09 | Filtronic Lk Oy | Arrangement for integrating a radio phone structure |
US7126546B2 (en) | 2001-06-29 | 2006-10-24 | Lk Products Oy | Arrangement for integrating a radio phone structure |
CN100373692C (en) * | 2001-06-29 | 2008-03-05 | 脉冲芬兰有限公司 | Arrangement for integrating a radio phone structure |
EP1294051A1 (en) * | 2001-09-13 | 2003-03-19 | Alcatel | Component for radio communication terminal constituting an antenna, a loudspeaker and a ringing device |
US7107016B2 (en) | 2001-09-13 | 2006-09-12 | Tcl Communications Technology Holdings Limited | Component for a wireless communication terminal constituting an antenna, loudspeaker and ringer |
FR2829651A1 (en) * | 2001-09-13 | 2003-03-14 | Cit Alcatel | COMPONENT FOR RADIOCOMMUNICATION TERMINAL CONSTITUTING ANTENNA, SPEAKER AND RINGER |
US7082322B2 (en) | 2002-05-22 | 2006-07-25 | Nec Corporation | Portable radio terminal unit |
GB2388965B (en) * | 2002-05-22 | 2007-01-03 | Nec Corp | Portable radio terminal unit |
EP1686648A1 (en) * | 2005-02-01 | 2006-08-02 | Research In Motion Limited | Mobile wireless communications device comprising integrated antenna and keyboard and related methods |
US7383067B2 (en) | 2005-02-01 | 2008-06-03 | Research In Motion Limited | Mobile wireless communications device comprising integrated antenna and keyboard and related methods |
EP3067982A1 (en) * | 2015-03-13 | 2016-09-14 | Gigaset Communications GmbH | Patch antenna for portable electronic wireless devices |
Also Published As
Publication number | Publication date |
---|---|
CN1326619A (en) | 2001-12-12 |
AU6039999A (en) | 2000-06-05 |
US6411826B1 (en) | 2002-06-25 |
MY122461A (en) | 2006-04-29 |
JP2002530924A (en) | 2002-09-17 |
DE19983728T1 (en) | 2001-12-13 |
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