JPS57154910A - Frequency band shared antenna - Google Patents

Frequency band shared antenna

Info

Publication number
JPS57154910A
JPS57154910A JP4012981A JP4012981A JPS57154910A JP S57154910 A JPS57154910 A JP S57154910A JP 4012981 A JP4012981 A JP 4012981A JP 4012981 A JP4012981 A JP 4012981A JP S57154910 A JPS57154910 A JP S57154910A
Authority
JP
Japan
Prior art keywords
antenna
band
dipoles
frequency band
space
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
JP4012981A
Other languages
Japanese (ja)
Other versions
JPS6365163B2 (en
Inventor
Takashi Kataki
Takashi Hirukoi
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 JP4012981A priority Critical patent/JPS57154910A/en
Publication of JPS57154910A publication Critical patent/JPS57154910A/en
Publication of JPS6365163B2 publication Critical patent/JPS6365163B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To eliminate the scattered waves at a high frequency band, by using plural metallic rods which are parallel to an antenna element of VHF band provided on a Cassegrain or Gregorian antenna and thus setting the space between the metallic rod at 1 wavelength. CONSTITUTION:A parabola antenna which receives the feed through a linear antenna 4 provided on a secondary antenna 2 with the freqency of the VHF band and is reflected by a main reflector 1 is also used as a Gregorian antenna which receives the feed through a primary horn antenna 3 with the frequency of the microwave band or millimeter wave band and is reflected by the reflectors 2 and 1. Dipoles 5a and 5b plus reflectors 6a and 6b are attached to the antenna 4. The dipoles 5a and 5a are made of metallic rods 8a and 8b, and the space lambda/2 is set between these dipoles 5a and 5b along the surface vertical to the travelling direction of the electric wave 9 of a high frequency band which is radiated from the horn 3. In such way, the scattered waves are eliminated within the above-mentioned surface to obtain the wide-angle radiation characteristics. The scattered waves can also be eliminated by setting the space at lambda/4 along the travelling direction of the wave 9.
JP4012981A 1981-03-19 1981-03-19 Frequency band shared antenna Granted JPS57154910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4012981A JPS57154910A (en) 1981-03-19 1981-03-19 Frequency band shared antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4012981A JPS57154910A (en) 1981-03-19 1981-03-19 Frequency band shared antenna

Publications (2)

Publication Number Publication Date
JPS57154910A true JPS57154910A (en) 1982-09-24
JPS6365163B2 JPS6365163B2 (en) 1988-12-14

Family

ID=12572193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4012981A Granted JPS57154910A (en) 1981-03-19 1981-03-19 Frequency band shared antenna

Country Status (1)

Country Link
JP (1) JPS57154910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013501461A (en) * 2009-08-03 2013-01-10 ヴェンティ・グループ・エルエルシー Cross dipole antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013501461A (en) * 2009-08-03 2013-01-10 ヴェンティ・グループ・エルエルシー Cross dipole antenna

Also Published As

Publication number Publication date
JPS6365163B2 (en) 1988-12-14

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