JPS56134803A - Collimation device of antenna - Google Patents

Collimation device of antenna

Info

Publication number
JPS56134803A
JPS56134803A JP3691380A JP3691380A JPS56134803A JP S56134803 A JPS56134803 A JP S56134803A JP 3691380 A JP3691380 A JP 3691380A JP 3691380 A JP3691380 A JP 3691380A JP S56134803 A JPS56134803 A JP S56134803A
Authority
JP
Japan
Prior art keywords
gate
antenna
pulses
signal
screen
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
JP3691380A
Other languages
Japanese (ja)
Inventor
Hironobu Nishimoto
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.)
UCHIYUU KAIHATSU JIGIYOUDAN
National Space Development Agency of Japan
Original Assignee
UCHIYUU KAIHATSU JIGIYOUDAN
National Space Development Agency of Japan
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 UCHIYUU KAIHATSU JIGIYOUDAN, National Space Development Agency of Japan filed Critical UCHIYUU KAIHATSU JIGIYOUDAN
Priority to JP3691380A priority Critical patent/JPS56134803A/en
Publication of JPS56134803A publication Critical patent/JPS56134803A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/10—Radiation diagrams of antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To measure accurately the main radiation axis of the antenna to be measured and the antenna pattern, by taking out only direct reflection pulses out of reflection pulses of the collimation antenna and by measuring them. CONSTITUTION:Movable gate circuit 12 receives the signal of the transmission timing of modulation pulses S0 from pulse generator 4 and generates pulse width variable distance gate (g). This gate (g) makes switch circuits 9-11 conductive only during the output of gate pulses. Therefore, only the signal corresponding to direct reflection pulses S1 out of the receiving signal of eact channel is input to receiver 14. Consequently, gate (g) is set in an estimated position while watching the screen of video display equipment 15, and then, it is confirmed that multiple reflection waves and undesired radio waves are eliminated on the screen while changeing the width of gate (g), and the antenna position where the receiving signals of channels 6 and 7 becomes 0 is obtained, and thus, the direction of antenna 1 to be measured at this time is the main radiation axis.
JP3691380A 1980-03-25 1980-03-25 Collimation device of antenna Pending JPS56134803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3691380A JPS56134803A (en) 1980-03-25 1980-03-25 Collimation device of antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3691380A JPS56134803A (en) 1980-03-25 1980-03-25 Collimation device of antenna

Publications (1)

Publication Number Publication Date
JPS56134803A true JPS56134803A (en) 1981-10-21

Family

ID=12483000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3691380A Pending JPS56134803A (en) 1980-03-25 1980-03-25 Collimation device of antenna

Country Status (1)

Country Link
JP (1) JPS56134803A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53144294A (en) * 1977-05-21 1978-12-15 Mitsubishi Electric Corp Radar target simulator device
JPS5436913A (en) * 1977-08-30 1979-03-19 Sony Corp Video signal recorder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53144294A (en) * 1977-05-21 1978-12-15 Mitsubishi Electric Corp Radar target simulator device
JPS5436913A (en) * 1977-08-30 1979-03-19 Sony Corp Video signal recorder

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