DE3506817A1 - Electronic transmitting/receiving switch-over device for transceivers - Google Patents

Electronic transmitting/receiving switch-over device for transceivers

Info

Publication number
DE3506817A1
DE3506817A1 DE19853506817 DE3506817A DE3506817A1 DE 3506817 A1 DE3506817 A1 DE 3506817A1 DE 19853506817 DE19853506817 DE 19853506817 DE 3506817 A DE3506817 A DE 3506817A DE 3506817 A1 DE3506817 A1 DE 3506817A1
Authority
DE
Germany
Prior art keywords
transmitting
over device
receiving switch
transceivers
receiver input
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.)
Withdrawn
Application number
DE19853506817
Other languages
German (de)
Inventor
August Dipl Ing Erat
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE19853506817 priority Critical patent/DE3506817A1/en
Publication of DE3506817A1 publication Critical patent/DE3506817A1/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/38Transceivers, 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
    • H04B1/40Circuits
    • H04B1/44Transmit/receive switching

Abstract

An electronic transmitting/receiving switch-over device for transceivers is proposed, the decoupling means of which result in a relatively low reactive current. The transmitting/receiving switch-over device according to the invention exhibits an inductance (32) between transmitting/receiving antenna (34) and earth and a coupling capacitor (35) between antenna and high-impedance receiver input (36). In the transmitting case, a diode (37) which is located between the receiver input (36) and a blocking capacitor (46) connected to earth and is driven into the conducting state short circuits the receiver input. At the same time, the second diode connects together the coupling capacitor (35) and the inductance (32) to form a parallel resonant circuit. <IMAGE>
DE19853506817 1985-02-27 1985-02-27 Electronic transmitting/receiving switch-over device for transceivers Withdrawn DE3506817A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853506817 DE3506817A1 (en) 1985-02-27 1985-02-27 Electronic transmitting/receiving switch-over device for transceivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853506817 DE3506817A1 (en) 1985-02-27 1985-02-27 Electronic transmitting/receiving switch-over device for transceivers

Publications (1)

Publication Number Publication Date
DE3506817A1 true DE3506817A1 (en) 1986-08-28

Family

ID=6263642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853506817 Withdrawn DE3506817A1 (en) 1985-02-27 1985-02-27 Electronic transmitting/receiving switch-over device for transceivers

Country Status (1)

Country Link
DE (1) DE3506817A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029788A1 (en) * 1990-09-20 1992-03-26 Licentia Gmbh Transmit-receive antenna switch - has two residual currents selected by switch responsive to threshold detector of input signal for reducing attenuation introduced by diode
DE4343719A1 (en) * 1992-12-22 1994-06-23 Murata Manufacturing Co RF switch
EP0667684A1 (en) * 1994-02-09 1995-08-16 Lk-Products Oy A transceiver with an arrangement for separating transmission and reception signals
WO2003026156A1 (en) * 2001-09-18 2003-03-27 Koninklijke Philips Electronics N.V. Rf signal switch for a wireless communication device
DE10248222A1 (en) * 2002-10-16 2004-05-06 Infineon Technologies Ag Transmitter for generating amplitude-modulated signal, has modulator connected to voltage source that provides low-frequency signal, and power amplifier

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4029788A1 (en) * 1990-09-20 1992-03-26 Licentia Gmbh Transmit-receive antenna switch - has two residual currents selected by switch responsive to threshold detector of input signal for reducing attenuation introduced by diode
DE4029788C2 (en) * 1990-09-20 1999-11-18 Aeg Mobile Communication antenna switch
DE4343719A1 (en) * 1992-12-22 1994-06-23 Murata Manufacturing Co RF switch
EP0667684A1 (en) * 1994-02-09 1995-08-16 Lk-Products Oy A transceiver with an arrangement for separating transmission and reception signals
US5521561A (en) * 1994-02-09 1996-05-28 Lk Products Oy Arrangement for separating transmission and reception
WO2003026156A1 (en) * 2001-09-18 2003-03-27 Koninklijke Philips Electronics N.V. Rf signal switch for a wireless communication device
CN1555607B (en) * 2001-09-18 2010-05-26 Nxp股份有限公司 Rf signal switch circuit and wireless communication device comprising same
DE10248222A1 (en) * 2002-10-16 2004-05-06 Infineon Technologies Ag Transmitter for generating amplitude-modulated signal, has modulator connected to voltage source that provides low-frequency signal, and power amplifier

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Legal Events

Date Code Title Description
8120 Willingness to grant licenses paragraph 23
8141 Disposal/no request for examination