JPS5769939A - Radio set - Google Patents

Radio set

Info

Publication number
JPS5769939A
JPS5769939A JP55146277A JP14627780A JPS5769939A JP S5769939 A JPS5769939 A JP S5769939A JP 55146277 A JP55146277 A JP 55146277A JP 14627780 A JP14627780 A JP 14627780A JP S5769939 A JPS5769939 A JP S5769939A
Authority
JP
Japan
Prior art keywords
reception
transmission
high frequency
mixer
circuits
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP55146277A
Other languages
Japanese (ja)
Inventor
Mitsuru Tanaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP55146277A priority Critical patent/JPS5769939A/en
Publication of JPS5769939A publication Critical patent/JPS5769939A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To obtain an simplex radio set with small size and low cost, by using a high frequency filter and a mixer in common for transmission and reception in a transmission/reception switching circuit. CONSTITUTION:A transmission power amplifier 23 and a reception high frequency amplifier 24 are connected between an antenna 21 and a high frequency amplifier 28 via switching circuits 22, 27. A mixer 29, a transmission IF circuit 25, and a reception IF circuits 26 are connected with a switching circuit 31. At the reception, the switching circuits 22, 27, 31 are selected as shown in Figure, and in case of transmission, they are selected to the opposite positions. Thus, high frequency filter 28 and the mixer 29 can be used in common for transmission/reception.
JP55146277A 1980-10-21 1980-10-21 Radio set Pending JPS5769939A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146277A JPS5769939A (en) 1980-10-21 1980-10-21 Radio set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146277A JPS5769939A (en) 1980-10-21 1980-10-21 Radio set

Publications (1)

Publication Number Publication Date
JPS5769939A true JPS5769939A (en) 1982-04-30

Family

ID=15404081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146277A Pending JPS5769939A (en) 1980-10-21 1980-10-21 Radio set

Country Status (1)

Country Link
JP (1) JPS5769939A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60169237A (en) * 1984-02-13 1985-09-02 Fujitsu Ltd Antenna switching device
EP0597653A2 (en) * 1992-11-11 1994-05-18 Nokia Mobile Phones Ltd. Radio frequency circuit for a time division multiple access system
EP0597534A2 (en) * 1992-11-13 1994-05-18 Philips Patentverwaltung GmbH Radio transceiver
US5444863A (en) * 1991-10-31 1995-08-22 Kabushiki Kaisha Toshiba Radio communication apparatus having common circuits usable by transmitter and receiver systems
US5555272A (en) * 1993-04-16 1996-09-10 France Telecom Signal processing device using several different filterings, especially for audio-frequency coding of voice signals
EP0845871A2 (en) * 1996-11-20 1998-06-03 Rockwell Science Center, Inc. Intermediate frequency amplifier circuit for use in receive and transmit mode
US5930686A (en) * 1993-05-05 1999-07-27 Marconi Electronic Systems Limited Integrated transceiver circuit packaged component
US6272329B1 (en) * 1998-12-09 2001-08-07 Nortel Networks Limited Bidirectional frequency translator and full duplex transceiver system employing same
CN100417036C (en) * 2004-04-02 2008-09-03 大唐移动通信设备有限公司 Message machine of receiving-transmitting time-division duplex wireless communication system
US7446612B2 (en) 2006-09-08 2008-11-04 Skyworks Solutions, Inc. Amplifier feedback and bias configuration
FR2916588A1 (en) * 2007-05-25 2008-11-28 Thales Sa BIDIRECTIONAL FREQUENCY MIXER, RADIO FREQUENCY TRANSMITTER / RECEIVER SYSTEM COMPRISING AT LEAST ONE SUCH MIXER.
US7471154B2 (en) 2006-08-08 2008-12-30 Skyworks Solutions, Inc. Bias circuit for maintaining high linearity at cutback power conditions
US7696826B2 (en) 2006-12-04 2010-04-13 Skyworks Solutions, Inc. Temperature compensation of collector-voltage control RF amplifiers
US7778208B2 (en) * 2008-02-21 2010-08-17 Samsung Electro-Mechanics Co., Ltd. Wireless communication system for time division duplex

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0417569B2 (en) * 1984-02-13 1992-03-26 Fujitsu Ltd
JPS60169237A (en) * 1984-02-13 1985-09-02 Fujitsu Ltd Antenna switching device
US5444863A (en) * 1991-10-31 1995-08-22 Kabushiki Kaisha Toshiba Radio communication apparatus having common circuits usable by transmitter and receiver systems
EP0597653A2 (en) * 1992-11-11 1994-05-18 Nokia Mobile Phones Ltd. Radio frequency circuit for a time division multiple access system
EP0597653A3 (en) * 1992-11-11 1994-12-14 Nokia Mobile Phones Ltd Radio frequency circuit for a time division multiple access system.
EP0597534A2 (en) * 1992-11-13 1994-05-18 Philips Patentverwaltung GmbH Radio transceiver
EP0597534A3 (en) * 1992-11-13 1994-12-14 Philips Patentverwaltung Radio transceiver.
US5555272A (en) * 1993-04-16 1996-09-10 France Telecom Signal processing device using several different filterings, especially for audio-frequency coding of voice signals
US5930686A (en) * 1993-05-05 1999-07-27 Marconi Electronic Systems Limited Integrated transceiver circuit packaged component
EP0845871A3 (en) * 1996-11-20 2003-03-19 Rockwell Science Center, Inc. Intermediate frequency amplifier circuit for use in receive and transmit mode
EP0845871A2 (en) * 1996-11-20 1998-06-03 Rockwell Science Center, Inc. Intermediate frequency amplifier circuit for use in receive and transmit mode
US6272329B1 (en) * 1998-12-09 2001-08-07 Nortel Networks Limited Bidirectional frequency translator and full duplex transceiver system employing same
CN100417036C (en) * 2004-04-02 2008-09-03 大唐移动通信设备有限公司 Message machine of receiving-transmitting time-division duplex wireless communication system
US7471154B2 (en) 2006-08-08 2008-12-30 Skyworks Solutions, Inc. Bias circuit for maintaining high linearity at cutback power conditions
US7446612B2 (en) 2006-09-08 2008-11-04 Skyworks Solutions, Inc. Amplifier feedback and bias configuration
US7696826B2 (en) 2006-12-04 2010-04-13 Skyworks Solutions, Inc. Temperature compensation of collector-voltage control RF amplifiers
FR2916588A1 (en) * 2007-05-25 2008-11-28 Thales Sa BIDIRECTIONAL FREQUENCY MIXER, RADIO FREQUENCY TRANSMITTER / RECEIVER SYSTEM COMPRISING AT LEAST ONE SUCH MIXER.
EP2001126A1 (en) * 2007-05-25 2008-12-10 Thales Bidirectional frequency mixer, radiofrequency emitter/receiver system comprising at least one such mixer
US8036627B2 (en) 2007-05-25 2011-10-11 Thales Bidirectional frequency mixer, radiofrequency transceiver system including such a mixer
US7778208B2 (en) * 2008-02-21 2010-08-17 Samsung Electro-Mechanics Co., Ltd. Wireless communication system for time division duplex

Similar Documents

Publication Publication Date Title
JPS5769939A (en) Radio set
JPS5339811A (en) High frequency amplifier circuit
JPS5325309A (en) Radio call unit
JPS53107259A (en) Compensator for delay of envelope
JPS573439A (en) Broad band receiving circuit
JPS5657343A (en) Antenna sharing device
JPS52106660A (en) Antenna
JPS53107214A (en) Radio transmission-reception system
JPS5441660A (en) Timer
JPS534445A (en) Ceramic filter circuit
JPS52126117A (en) Input tuning circuit
JPS5320714A (en) Radio receiver
JPS5320366A (en) Radio wave correction type electronic watch
JPS52125223A (en) Tuning circuit
JPS5481056A (en) Variable power distributor
JPS5352011A (en) Multiplex communication equipment with common automatic frequency control function
AU531465B2 (en) Antenna input circuit
JPS57206133A (en) Transmitter
JPS56160118A (en) Afc and agc circuit in common
JPS52106215A (en) Tuner stage coupling circuit
JPS53132249A (en) Integrated circuit for microwave transistor amplifier
JPS5286710A (en) Am-fm radio receiver
JPS53127220A (en) Amplifier
JPS53142810A (en) Selection unit for amplifier
JPS53102653A (en) Rc oscillating circuit