JPS5687903A - Antenna system - Google Patents

Antenna system

Info

Publication number
JPS5687903A
JPS5687903A JP16519979A JP16519979A JPS5687903A JP S5687903 A JPS5687903 A JP S5687903A JP 16519979 A JP16519979 A JP 16519979A JP 16519979 A JP16519979 A JP 16519979A JP S5687903 A JPS5687903 A JP S5687903A
Authority
JP
Japan
Prior art keywords
terminal
output
hybrid
input
array antenna
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
JP16519979A
Other languages
Japanese (ja)
Inventor
Eiji Tomimatsu
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
Original Assignee
Mitsubishi Electric Corp
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 filed Critical Mitsubishi Electric Corp
Priority to JP16519979A priority Critical patent/JPS5687903A/en
Publication of JPS5687903A publication Critical patent/JPS5687903A/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
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To increase the function of azimuth analysis, by adding an auxiliary antenna and a microwave circuit to an array antenna and synthesizing the array antenna signals. CONSTITUTION:An auxiliary antenna 13 is located at the center of arrangement, and the output terminal is connected to a 180 deg. hybrid 15 via a phase adjuster 17. On the other hand, in an array antenna 100, coupling is made between a distributor 4 and a terminal 5, and one terminal is connected to the hybrid 15. With such a constitution, full power is output to a sum terminal 16 when the in-phase equal amplitude is input to input terminals 15a, 15b, and to a difference terminal 17 when the inverse phase equal amplitude is input to them, in the hybrid 15. Thus, when the input amplitude of the main beam, grating lobe, and auxiliary beam to the hybrid 15 is the same, no output to the difference terminal 17 is present to the incident waves from the direction of theta0 and no output from the sum terminal 16 is present to those from the direction of theta1. Since the output in this case is obtained at the terminal 16 for the former and at the terminal 17 for the latter, the reception of main beam direction or grating lobe direction can be decided from the output of the hybrid 15.
JP16519979A 1979-12-18 1979-12-18 Antenna system Pending JPS5687903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16519979A JPS5687903A (en) 1979-12-18 1979-12-18 Antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16519979A JPS5687903A (en) 1979-12-18 1979-12-18 Antenna system

Publications (1)

Publication Number Publication Date
JPS5687903A true JPS5687903A (en) 1981-07-17

Family

ID=15807712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16519979A Pending JPS5687903A (en) 1979-12-18 1979-12-18 Antenna system

Country Status (1)

Country Link
JP (1) JPS5687903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140702A (en) * 1980-03-31 1981-11-04 Mitsubishi Electric Corp Antenna system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826351A (en) * 1971-08-09 1973-04-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826351A (en) * 1971-08-09 1973-04-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56140702A (en) * 1980-03-31 1981-11-04 Mitsubishi Electric Corp Antenna system

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