WO2003103156A3 - A radio frequency circuit - Google Patents

A radio frequency circuit Download PDF

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Publication number
WO2003103156A3
WO2003103156A3 PCT/SG2002/000097 SG0200097W WO03103156A3 WO 2003103156 A3 WO2003103156 A3 WO 2003103156A3 SG 0200097 W SG0200097 W SG 0200097W WO 03103156 A3 WO03103156 A3 WO 03103156A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
signal
radio frequency
frequency circuit
transmitter
Prior art date
Application number
PCT/SG2002/000097
Other languages
French (fr)
Other versions
WO2003103156A2 (en
Inventor
Khai Pang Tan
Yeong Chun Chua
Wei Dong Chen
Original Assignee
Addvalue Technologies Ltd
Khai Pang Tan
Yeong Chun Chua
Wei Dong Chen
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 Addvalue Technologies Ltd, Khai Pang Tan, Yeong Chun Chua, Wei Dong Chen filed Critical Addvalue Technologies Ltd
Priority to AU2002258349A priority Critical patent/AU2002258349A1/en
Priority to PCT/SG2002/000097 priority patent/WO2003103156A2/en
Publication of WO2003103156A2 publication Critical patent/WO2003103156A2/en
Publication of WO2003103156A3 publication Critical patent/WO2003103156A3/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
    • H04B1/44—Transmit/receive switching
    • H04B1/48—Transmit/receive switching in circuits for connecting transmitter and receiver to a common transmission path, e.g. by energy of transmitter
    • 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

Abstract

A radio frequency circuit for TDMA applications is described which comprises a transceiver (1) having a transmitter and a receiver (1a, 1b); an antenna (5) for wireless transmission and reception of a RF signal; a switch (2) coupled to the antenna (5) and selectively connecting the antenna (5) to the transmitter (1a) to transmit a said RF signal to the antenna (5) or to the receiver (1b) to receive a said RF signal from the antenna (5); a first filter (10) arranged to process a said RF signal between the transmitter (1a) and the switch (2); and a second filter (11) arranged to process a said RF signal between the switch (2) and the receiver (1b).
PCT/SG2002/000097 2002-05-16 2002-05-16 A radio frequency circuit WO2003103156A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002258349A AU2002258349A1 (en) 2002-05-16 2002-05-16 A radio frequency circuit
PCT/SG2002/000097 WO2003103156A2 (en) 2002-05-16 2002-05-16 A radio frequency circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SG2002/000097 WO2003103156A2 (en) 2002-05-16 2002-05-16 A radio frequency circuit

Publications (2)

Publication Number Publication Date
WO2003103156A2 WO2003103156A2 (en) 2003-12-11
WO2003103156A3 true WO2003103156A3 (en) 2004-10-07

Family

ID=29707930

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SG2002/000097 WO2003103156A2 (en) 2002-05-16 2002-05-16 A radio frequency circuit

Country Status (2)

Country Link
AU (1) AU2002258349A1 (en)
WO (1) WO2003103156A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235855A (en) * 1989-08-12 1991-03-13 Samsung Electronics Co Ltd Radio-frequency transmitting and receiving circuit uses pin diode switch
EP0820155A2 (en) * 1996-07-17 1998-01-21 Murata Manufacturing Co., Ltd. Duplexer
WO1998011674A1 (en) * 1996-09-10 1998-03-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for suppressing transmitter overtones and receiver blocking signals in a radio transceiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235855A (en) * 1989-08-12 1991-03-13 Samsung Electronics Co Ltd Radio-frequency transmitting and receiving circuit uses pin diode switch
EP0820155A2 (en) * 1996-07-17 1998-01-21 Murata Manufacturing Co., Ltd. Duplexer
WO1998011674A1 (en) * 1996-09-10 1998-03-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for suppressing transmitter overtones and receiver blocking signals in a radio transceiver

Also Published As

Publication number Publication date
AU2002258349A8 (en) 2003-12-19
AU2002258349A1 (en) 2003-12-19
WO2003103156A2 (en) 2003-12-11

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