JPS5546630A - Antenna change-over circuit - Google Patents

Antenna change-over circuit

Info

Publication number
JPS5546630A
JPS5546630A JP11975078A JP11975078A JPS5546630A JP S5546630 A JPS5546630 A JP S5546630A JP 11975078 A JP11975078 A JP 11975078A JP 11975078 A JP11975078 A JP 11975078A JP S5546630 A JPS5546630 A JP S5546630A
Authority
JP
Japan
Prior art keywords
sweep
frequency
receiver
signal
sweep receiver
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
JP11975078A
Other languages
Japanese (ja)
Inventor
Toru Kato
Mitsuhiro Sato
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.)
Mitsubishi Electric Corp
Technical Research and Development Institute of Japan Defence Agency
Original Assignee
Mitsubishi Electric Corp
Technical Research and Development Institute of Japan Defence Agency
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 Mitsubishi Electric Corp, Technical Research and Development Institute of Japan Defence Agency filed Critical Mitsubishi Electric Corp
Priority to JP11975078A priority Critical patent/JPS5546630A/en
Publication of JPS5546630A publication Critical patent/JPS5546630A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To make it possible to connect a sweep receiver to an antenna of a corresponding frequency band by switching, by controlling the switching of a high-frequency signal by the sweep frequency of the sweep receiver. CONSTITUTION:A high-frequency signal from input terminal 1 is branched by distributor 3 and alternated by high-speed switches 5 and 6 before being supplied to a sweep receiver by way of output terminals 10 and 11 respectively. On receiving a frequency sweep signal from each sweep receiver via terminal 12, control circuit 9 generates a signal which drives selectively fixed switches 5-8 corresponding to code contents. Consequently, a high-frequency signal from a fixed antenna equivalent to a frequency band can be led to a corresponding sweep receiver in accordance with the sweep reception frequency of the sweep receiver. Further, respective receivers can share antennas, so that antennas can be reduced in number.
JP11975078A 1978-09-28 1978-09-28 Antenna change-over circuit Pending JPS5546630A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11975078A JPS5546630A (en) 1978-09-28 1978-09-28 Antenna change-over circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11975078A JPS5546630A (en) 1978-09-28 1978-09-28 Antenna change-over circuit

Publications (1)

Publication Number Publication Date
JPS5546630A true JPS5546630A (en) 1980-04-01

Family

ID=14769214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11975078A Pending JPS5546630A (en) 1978-09-28 1978-09-28 Antenna change-over circuit

Country Status (1)

Country Link
JP (1) JPS5546630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461939U (en) * 1990-10-03 1992-05-27
US6489843B1 (en) * 1995-09-29 2002-12-03 Matsushita Electric Industrial Co., Ltd. Power amplifier and communication unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461939U (en) * 1990-10-03 1992-05-27
US6489843B1 (en) * 1995-09-29 2002-12-03 Matsushita Electric Industrial Co., Ltd. Power amplifier and communication unit

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