JPS5535577A - Antenna device - Google Patents

Antenna device

Info

Publication number
JPS5535577A
JPS5535577A JP10945078A JP10945078A JPS5535577A JP S5535577 A JPS5535577 A JP S5535577A JP 10945078 A JP10945078 A JP 10945078A JP 10945078 A JP10945078 A JP 10945078A JP S5535577 A JPS5535577 A JP S5535577A
Authority
JP
Japan
Prior art keywords
reflector
periphery
curved surface
returned
side lobe
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
JP10945078A
Other languages
Japanese (ja)
Inventor
Ikuo Sato
Isao Mori
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10945078A priority Critical patent/JPS5535577A/en
Publication of JPS5535577A publication Critical patent/JPS5535577A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
    • H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To enhance the side lobe properties by forming the metal masking shield into a curved surface and thus concentrating most of the leak power which is returned from the periphery of the secondary reflector toward the main reflector. CONSTITUTION:Metal masking shield 11 featuring a curved surface is provided at the outer circumference part of secondary reflector 2. Thus most of the leak power returned from the periphery of reflector 2 toward main reflector 3 are concentrated toward antenna main axis Y. As a result, the side lobe properties can be enhanced.
JP10945078A 1978-09-05 1978-09-05 Antenna device Pending JPS5535577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10945078A JPS5535577A (en) 1978-09-05 1978-09-05 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10945078A JPS5535577A (en) 1978-09-05 1978-09-05 Antenna device

Publications (1)

Publication Number Publication Date
JPS5535577A true JPS5535577A (en) 1980-03-12

Family

ID=14510537

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10945078A Pending JPS5535577A (en) 1978-09-05 1978-09-05 Antenna device

Country Status (1)

Country Link
JP (1) JPS5535577A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135071U (en) * 1987-02-27 1988-09-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63135071U (en) * 1987-02-27 1988-09-05

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