WO2002007337A3 - Frequency multiplexer - Google Patents

Frequency multiplexer Download PDF

Info

Publication number
WO2002007337A3
WO2002007337A3 PCT/EP2001/007688 EP0107688W WO0207337A3 WO 2002007337 A3 WO2002007337 A3 WO 2002007337A3 EP 0107688 W EP0107688 W EP 0107688W WO 0207337 A3 WO0207337 A3 WO 0207337A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency
circuit
common terminal
filter
frequency bands
Prior art date
Application number
PCT/EP2001/007688
Other languages
French (fr)
Other versions
WO2002007337A2 (en
Inventor
Per-Olof Brandt
Original Assignee
Ericsson Telefon Ab L M
Per-Olof Brandt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M, Per-Olof Brandt filed Critical Ericsson Telefon Ab L M
Priority to AU2001283924A priority Critical patent/AU2001283924A1/en
Priority to DE60104121T priority patent/DE60104121T2/en
Priority to AT01962830T priority patent/ATE270473T1/en
Priority to JP2002513117A priority patent/JP2004504759A/en
Priority to EP01962830A priority patent/EP1302000B1/en
Publication of WO2002007337A2 publication Critical patent/WO2002007337A2/en
Publication of WO2002007337A3 publication Critical patent/WO2002007337A3/en

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
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • H04B1/406—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency with more than one transmission mode, e.g. analog and digital modes
    • 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
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication
    • H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Abstract

Multiple circuits connected to a common terminal are switched where the frequency bands to be conducted through the circuits are close. Each circuit has an independent signal path to the common terminal which contains a filter and a device. Each device has a first and a second state. Each circuit has a first filter characteristic that passes a first frequency band and substantially blocks the second frequency band. Each circuit has a second filtercharacteristic which substantially blocks the first and second frequency bands when the device is in the second state, wherein the second filter characteristic is a result of the device and a filter acting in combination. As a result, the frequency multiplexer can have multiple frequency bands in a narrow frequency range connected to a common terminal with minimum signal loss.
PCT/EP2001/007688 2000-07-14 2001-07-05 Frequency multiplexer WO2002007337A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2001283924A AU2001283924A1 (en) 2000-07-14 2001-07-05 Frequency multiplexer
DE60104121T DE60104121T2 (en) 2000-07-14 2001-07-05 FREQUENCY MULTIPLEXER
AT01962830T ATE270473T1 (en) 2000-07-14 2001-07-05 FREQUENCY MULTIPLEXER
JP2002513117A JP2004504759A (en) 2000-07-14 2001-07-05 Frequency multiplexer
EP01962830A EP1302000B1 (en) 2000-07-14 2001-07-05 Frequency multiplexer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/617,678 2000-07-14
US09/617,678 US6950410B1 (en) 2000-07-14 2000-07-14 Frequency multiplexer

Publications (2)

Publication Number Publication Date
WO2002007337A2 WO2002007337A2 (en) 2002-01-24
WO2002007337A3 true WO2002007337A3 (en) 2002-06-27

Family

ID=24474589

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/007688 WO2002007337A2 (en) 2000-07-14 2001-07-05 Frequency multiplexer

Country Status (7)

Country Link
US (1) US6950410B1 (en)
EP (1) EP1302000B1 (en)
JP (1) JP2004504759A (en)
AT (1) ATE270473T1 (en)
AU (1) AU2001283924A1 (en)
DE (1) DE60104121T2 (en)
WO (1) WO2002007337A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104541405A (en) * 2012-08-09 2015-04-22 高通股份有限公司 Front end parallel resonant switch

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100477768B1 (en) * 2002-03-13 2005-03-22 텔레포스 주식회사 Switch Module
WO2006063257A2 (en) * 2004-12-09 2006-06-15 Wispry, Inc. Micro-electro-mechanical system (mems) capacitors, inductors, and related systems and methods
US7884685B2 (en) * 2007-09-05 2011-02-08 Nokia Corporation Band switching by diplexer component tuning
DE102008056911B4 (en) * 2008-11-12 2015-11-26 Siemens Aktiengesellschaft Impedance transforming diplex filter for filtering signals, magnetic resonance imaging and manufacturing process
US8344959B2 (en) * 2009-04-30 2013-01-01 Nokia Corporation Multiprotocol antenna for wireless systems
US20100279734A1 (en) * 2009-04-30 2010-11-04 Nokia Corporation Multiprotocol Antenna For Wireless Systems
US8610638B2 (en) 2011-01-17 2013-12-17 Nokia Corporation FM transmission using a RFID/NFC coil antenna
JP5638468B2 (en) * 2011-06-08 2014-12-10 アルプス電気株式会社 Signal switching device
US9793616B2 (en) 2012-11-19 2017-10-17 Apple Inc. Shared antenna structures for near-field communications and non-near-field communications circuitry
US9621230B2 (en) 2014-03-03 2017-04-11 Apple Inc. Electronic device with near-field antennas
US9325080B2 (en) 2014-03-03 2016-04-26 Apple Inc. Electronic device with shared antenna structures and balun
US10312593B2 (en) * 2014-04-16 2019-06-04 Apple Inc. Antennas for near-field and non-near-field communications
KR102330024B1 (en) * 2015-03-27 2021-11-23 삼성전자 주식회사 Antenna apparatus and electronic device including the same
JP6733817B2 (en) * 2017-05-18 2020-08-05 株式会社村田製作所 Multiplexer, high frequency circuit and communication device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697069A (en) * 1995-10-05 1997-12-09 Daimler-Benz Aktiengesellschaft Transmit-receiver switch
EP0980109A2 (en) * 1998-08-11 2000-02-16 Murata Manufacturing Co., Ltd. Duplexer and communication apparatus
DE19842706A1 (en) * 1998-09-17 2000-03-23 Siemens Ag Multi-band aerial switch for multi-band mobile radio telephone
EP1014592A2 (en) * 1998-12-22 2000-06-28 Hitachi Media Electronics Co., Ltd. Mobile radio terminal and surface acoustic wave antenna duplexer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652599A (en) * 1995-09-11 1997-07-29 Qualcomm Incorporated Dual-band antenna system
SE508506C2 (en) * 1997-02-25 1998-10-12 Ericsson Telefon Ab L M Device and method of telecommunication
JPH11122139A (en) * 1997-10-17 1999-04-30 Murata Mfg Co Ltd Antenna multicoupler
SE511749C2 (en) 1998-04-07 1999-11-15 Ericsson Telefon Ab L M antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697069A (en) * 1995-10-05 1997-12-09 Daimler-Benz Aktiengesellschaft Transmit-receiver switch
EP0980109A2 (en) * 1998-08-11 2000-02-16 Murata Manufacturing Co., Ltd. Duplexer and communication apparatus
DE19842706A1 (en) * 1998-09-17 2000-03-23 Siemens Ag Multi-band aerial switch for multi-band mobile radio telephone
EP1014592A2 (en) * 1998-12-22 2000-06-28 Hitachi Media Electronics Co., Ltd. Mobile radio terminal and surface acoustic wave antenna duplexer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104541405A (en) * 2012-08-09 2015-04-22 高通股份有限公司 Front end parallel resonant switch
CN104541405B (en) * 2012-08-09 2017-11-24 高通股份有限公司 Front end parallel resonance switch

Also Published As

Publication number Publication date
DE60104121D1 (en) 2004-08-05
ATE270473T1 (en) 2004-07-15
WO2002007337A2 (en) 2002-01-24
DE60104121T2 (en) 2005-08-25
EP1302000A2 (en) 2003-04-16
JP2004504759A (en) 2004-02-12
AU2001283924A1 (en) 2002-01-30
US6950410B1 (en) 2005-09-27
EP1302000B1 (en) 2004-06-30

Similar Documents

Publication Publication Date Title
WO2002007337A3 (en) Frequency multiplexer
ATE545206T1 (en) HIGH FREQUENCY CIRCUIT, HIGH FREQUENCY SWITCHING MODULE AND WIRELESS COMMUNICATION DEVICE THEREFROM
EP1246363A3 (en) High frequency switch circuit, and communications terminal using the same
TW200703939A (en) Multi-band high frequency circuit, multi-band high frequency circuit part and a multi-band communication device using the same
WO2003015301A1 (en) Bypass filter, multi-band antenna switch circuit, and layered module composite part and communication device using them
EP1035648A3 (en) A band switching filter using a surface acoustic wave resonator and an antenna duplexer using the same
WO2009011101A1 (en) Antenna duplexer and communication apparatus employing the same
MY120331A (en) Impedance matching circuit for power amplifier
GB0217932D0 (en) High frequency module
TW200614705A (en) Signal transmission circuit
DE60126280D1 (en) TWO BAND PATCH ANTENNA
DE602004021557D1 (en) Diplexer and matching circuit
WO2004093328A3 (en) Bidirectional distributed amplifier
CA2377532A1 (en) Waveguide group branching filter
SE0003020L (en) A mixer
ATE498245T1 (en) IMPEDANCE MATCHING CIRCUIT FOR A MULTI-BAND RADIO
JP2003133434A5 (en)
CA2333436A1 (en) Optical multiplexer/ demultiplexer
WO2002031997A3 (en) High frequency amplification circuit
CN209105170U (en) A kind of RF IC and electronic equipment
KR970054823A (en) 90 ° Hybrid Power Divider / Synthesizer with Matching Stubs
WO2004010412A3 (en) Circuit arrangement for reducing the dynamic range of audio signals
WO2004051977A3 (en) Low-pass filter which is intended for telephone lines that are adapted for adsl transmission
WO2001097392A3 (en) Multiband mobile radio terminal and antenna switching device for such a terminal
KR101401666B1 (en) Wideband Selectable Attenuator

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ CZ DE DE DK DK DM DZ EC EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ CZ DE DE DK DK DM DZ EC EE EE ES FI FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

WWE Wipo information: entry into national phase

Ref document number: 2001962830

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2001962830

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

ENP Entry into the national phase

Ref document number: 2003130084

Country of ref document: RU

Kind code of ref document: A

Format of ref document f/p: F

WWG Wipo information: grant in national office

Ref document number: 2001962830

Country of ref document: EP