JPS5779706A - Sleeve antenna - Google Patents

Sleeve antenna

Info

Publication number
JPS5779706A
JPS5779706A JP55155062A JP15506280A JPS5779706A JP S5779706 A JPS5779706 A JP S5779706A JP 55155062 A JP55155062 A JP 55155062A JP 15506280 A JP15506280 A JP 15506280A JP S5779706 A JPS5779706 A JP S5779706A
Authority
JP
Japan
Prior art keywords
antenna
band
pass filter
sleeve
sleeve element
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
JP55155062A
Other languages
Japanese (ja)
Inventor
Yumio Kawai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55155062A priority Critical patent/JPS5779706A/en
Publication of JPS5779706A publication Critical patent/JPS5779706A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/18—Vertical disposition of the antenna

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

PURPOSE:To increase the sensitivity, by taking impedance matching between an antenna and a feeding line and a radio set input circuit. CONSTITUTION:A sleeve antenna consists of a whip antenna 1 and a sleeve element with 1/4 wavelength and opened tip. The whip element 1 and the sleeve element 2 are directly connected by inserting a band-pass filter 5 at the inside of the sleeve element 2 and the output is given to an input circuit of a radio set through a coaxial cable 3, that is, the first stage amplifier or transmission output circuit 6. As the input side load impedance of the band-pass filter, the impendance of antenna is estimated to form the band-pass filter.
JP55155062A 1980-11-04 1980-11-04 Sleeve antenna Pending JPS5779706A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155062A JPS5779706A (en) 1980-11-04 1980-11-04 Sleeve antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155062A JPS5779706A (en) 1980-11-04 1980-11-04 Sleeve antenna

Publications (1)

Publication Number Publication Date
JPS5779706A true JPS5779706A (en) 1982-05-19

Family

ID=15597828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155062A Pending JPS5779706A (en) 1980-11-04 1980-11-04 Sleeve antenna

Country Status (1)

Country Link
JP (1) JPS5779706A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124106U (en) * 1985-01-21 1986-08-05
JPH0431808U (en) * 1990-07-05 1992-03-16
JPH04252522A (en) * 1991-01-28 1992-09-08 Mitsubishi Electric Corp Filter antenna system
EP0767508A3 (en) * 1995-10-06 1998-03-04 Nokia Mobile Phones Ltd. Antenna
JP2007139756A (en) * 2005-10-17 2007-06-07 Ricoh Co Ltd Relative position detection device, rotating body travel detection device, and image forming apparatus
EP3322036A1 (en) * 2016-11-14 2018-05-16 Amphenol Antenna Solutions Inc. Sleeve monopole antenna with spatially variable dielectric loading
US10290943B2 (en) 2016-11-14 2019-05-14 Amphenol Antenna Solutions, Inc. Sleeve monopole antenna with spatially variable dielectric loading

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61124106U (en) * 1985-01-21 1986-08-05
JPH0431808U (en) * 1990-07-05 1992-03-16
JPH04252522A (en) * 1991-01-28 1992-09-08 Mitsubishi Electric Corp Filter antenna system
EP0767508A3 (en) * 1995-10-06 1998-03-04 Nokia Mobile Phones Ltd. Antenna
JP2007139756A (en) * 2005-10-17 2007-06-07 Ricoh Co Ltd Relative position detection device, rotating body travel detection device, and image forming apparatus
EP3322036A1 (en) * 2016-11-14 2018-05-16 Amphenol Antenna Solutions Inc. Sleeve monopole antenna with spatially variable dielectric loading
US10290943B2 (en) 2016-11-14 2019-05-14 Amphenol Antenna Solutions, Inc. Sleeve monopole antenna with spatially variable dielectric loading

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