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JPS5720002A - Short backfire antenna - Google Patents

Short backfire antenna

Info

Publication number
JPS5720002A
JPS5720002A JP9330180A JP9330180A JPS5720002A JP S5720002 A JPS5720002 A JP S5720002A JP 9330180 A JP9330180 A JP 9330180A JP 9330180 A JP9330180 A JP 9330180A JP S5720002 A JPS5720002 A JP S5720002A
Authority
JP
Japan
Prior art keywords
reflector
opening
main
conical
constitution
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.)
Granted
Application number
JP9330180A
Other languages
Japanese (ja)
Other versions
JPS6363122B2 (en
Inventor
Hiromitsu Yoshimura
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP9330180A priority Critical patent/JPS5720002A/en
Publication of JPS5720002A publication Critical patent/JPS5720002A/en
Publication of JPS6363122B2 publication Critical patent/JPS6363122B2/ja
Granted 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
    • H01Q19/185—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 wherein the surfaces are plane

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To improve the frequency of an input standing wave ratio and opening surface efficiency by composing a main reflector of an opening surface slanted forth in a conical or pyramidal shape which is geometically simple. CONSTITUTION:A short backfire antenna is composed of a main reflector 1, a flank reflector 2 which is provided annularly around the outer circumferential part of the main reflector 1 and less than as long as one wavelength of a radio wave, a small reflector 3, and a feeding reflector 4. In this constitution, the main reflector 1 has a conical (or pyramidal) opening with a slanting angle alpha in the direction of the reflector 4. Consiquently, the facing interval between the reflectors 1 and 3 is not constant and a cavity resonance phenomenon is relaxed to obtain an excellent broad band characteristics. In addition, the effect of the reflector is reinforced to optimize the electric-field irradiation distribution of the radiator 4 and the reflector to the circumferential part of the reflector 1, and consequently while opening efficiency is improved, a radiation pattern having an excellent low side lobe is obtained.
JP9330180A 1980-07-10 1980-07-10 Short backfire antenna Granted JPS5720002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9330180A JPS5720002A (en) 1980-07-10 1980-07-10 Short backfire antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9330180A JPS5720002A (en) 1980-07-10 1980-07-10 Short backfire antenna

Publications (2)

Publication Number Publication Date
JPS5720002A true JPS5720002A (en) 1982-02-02
JPS6363122B2 JPS6363122B2 (en) 1988-12-06

Family

ID=14078520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9330180A Granted JPS5720002A (en) 1980-07-10 1980-07-10 Short backfire antenna

Country Status (1)

Country Link
JP (1) JPS5720002A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129512A (en) * 1987-11-14 1989-05-22 Nozomi Hasebe Microwave antenna
JPH01129511A (en) * 1987-11-14 1989-05-22 Nozomi Hasebe Microwave antenna
WO2003043128A1 (en) * 2001-11-16 2003-05-22 Lg Electronics Inc. Wireless communications antenna assembly generating minimal back lobe radio frequency (rf) patterns
US7489282B2 (en) 2005-01-21 2009-02-10 Rotani, Inc. Method and apparatus for an antenna module
JP2014533450A (en) * 2011-09-22 2014-12-11 アルカテル−ルーセント Ultra-wideband antenna
US10063297B1 (en) 2006-02-28 2018-08-28 Woodbury Wireless, LLC MIMO methods and systems

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282056A (en) * 1975-12-05 1977-07-08 Hughes Aircraft Co Small waveelength efficiency antenna
JPS5360740U (en) * 1976-10-27 1978-05-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5282056A (en) * 1975-12-05 1977-07-08 Hughes Aircraft Co Small waveelength efficiency antenna
JPS5360740U (en) * 1976-10-27 1978-05-23

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01129512A (en) * 1987-11-14 1989-05-22 Nozomi Hasebe Microwave antenna
JPH01129511A (en) * 1987-11-14 1989-05-22 Nozomi Hasebe Microwave antenna
WO2003043128A1 (en) * 2001-11-16 2003-05-22 Lg Electronics Inc. Wireless communications antenna assembly generating minimal back lobe radio frequency (rf) patterns
US6885352B2 (en) 2001-11-16 2005-04-26 Lg Electronics Inc. Wireless communications antenna assembly generating minimal back lobe radio frequency (RF) patterns
US7489282B2 (en) 2005-01-21 2009-02-10 Rotani, Inc. Method and apparatus for an antenna module
US10063297B1 (en) 2006-02-28 2018-08-28 Woodbury Wireless, LLC MIMO methods and systems
US10069548B2 (en) 2006-02-28 2018-09-04 Woodbury Wireless, LLC Methods and apparatus for overlapping MIMO physical sectors
US10211895B2 (en) 2006-02-28 2019-02-19 Woodbury Wireless Llc MIMO methods and systems
US10516451B2 (en) 2006-02-28 2019-12-24 Woodbury Wireless Llc MIMO methods
US11108443B2 (en) 2006-02-28 2021-08-31 Woodbury Wireless, LLC MIMO methods and systems
US12015457B2 (en) 2006-02-28 2024-06-18 Woodbury Wireless, LLC MIMO methods and systems
JP2014533450A (en) * 2011-09-22 2014-12-11 アルカテル−ルーセント Ultra-wideband antenna

Also Published As

Publication number Publication date
JPS6363122B2 (en) 1988-12-06

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