JPS57129031A - High-frequency signal synthesizing device - Google Patents

High-frequency signal synthesizing device

Info

Publication number
JPS57129031A
JPS57129031A JP1473981A JP1473981A JPS57129031A JP S57129031 A JPS57129031 A JP S57129031A JP 1473981 A JP1473981 A JP 1473981A JP 1473981 A JP1473981 A JP 1473981A JP S57129031 A JPS57129031 A JP S57129031A
Authority
JP
Japan
Prior art keywords
wave
ghost
phase
ghost wave
antennas
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
JP1473981A
Other languages
Japanese (ja)
Inventor
Akira Takahashi
Risaburo 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.)
Yagi Antenna Co Ltd
Original Assignee
Yagi Antenna 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 Yagi Antenna Co Ltd filed Critical Yagi Antenna Co Ltd
Priority to JP1473981A priority Critical patent/JPS57129031A/en
Publication of JPS57129031A publication Critical patent/JPS57129031A/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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference

Abstract

PURPOSE:To remove a ghost wave, by correcting one receiving wave by a shifting portion of the ghost wave against a desired wave in high frequency signals received from 2 antennas, and afte that, synthesizing both the high frequency signals in opposite phase. CONSTITUTION:2 antennas 25, 26 are installed at an interval of about 1.5m on the same space phase surface, and are connected to input terminals 11, 16, respectively. In this state, for instance, if a ghost wave has arrived from the direction of 8 deg. against a desired wave, this ghost wave is made incident to the antenna 25, leading the antenna 26 by 39.1 deg.. Accordingly, when fixed reactance X1 of a fixed phase shifter 21 is set to infinity and the variable reactance X2 of a variable phase shifter 22 is adjusted and set to 39.1 deg., the ghost wave is inputted in phase in all channels at the input terminal of an opposite phase synthesizer 27. Therefore, the ghost wave is removed by an output of the opposite phase synthesizer 27.
JP1473981A 1981-02-03 1981-02-03 High-frequency signal synthesizing device Pending JPS57129031A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1473981A JPS57129031A (en) 1981-02-03 1981-02-03 High-frequency signal synthesizing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1473981A JPS57129031A (en) 1981-02-03 1981-02-03 High-frequency signal synthesizing device

Publications (1)

Publication Number Publication Date
JPS57129031A true JPS57129031A (en) 1982-08-10

Family

ID=11869482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1473981A Pending JPS57129031A (en) 1981-02-03 1981-02-03 High-frequency signal synthesizing device

Country Status (1)

Country Link
JP (1) JPS57129031A (en)

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