JPS5498553A - Antenna - Google Patents

Antenna

Info

Publication number
JPS5498553A
JPS5498553A JP553678A JP553678A JPS5498553A JP S5498553 A JPS5498553 A JP S5498553A JP 553678 A JP553678 A JP 553678A JP 553678 A JP553678 A JP 553678A JP S5498553 A JPS5498553 A JP S5498553A
Authority
JP
Japan
Prior art keywords
reflection plate
reflection
plates
flat
width
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
JP553678A
Other languages
Japanese (ja)
Inventor
Shinji Kusaka
Mitsuo Imai
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP553678A priority Critical patent/JPS5498553A/en
Publication of JPS5498553A publication Critical patent/JPS5498553A/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
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre

Landscapes

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

Abstract

PURPOSE:To decrease the falling in the horizontal directivity by causing reflecting operation between one reflection plate and the folded part of other reflection plate adjacent, through the provision of the folding part at the both ends longitudinal direction of flat reflection plate attaching the antenna element and through the provision of three plates or more surrounding the antenna tower. CONSTITUTION:The four reflection plates 22a to 22d having the flat part 4 and the folded part 5 are located around the antenna tower 21 in square shape. The reflection plates 22a to 22d are attached with the antenna elements 23a to 23d. Further, the folded part 5 is formed at the both ends longitudinally to the flat part 4 so that it is orthogonal to the flat part 4. Thus, taking the width of the flat part 4 as A and the width of folded part 5 as B, the width of the reflection plate 22a is substantially A+2B and this is the same other reflection plates. Accordingly, to the elements 23a to 23d, the reflection plate of required size can be obtained and the falling in the horizontal directivity can be reduced.
JP553678A 1978-01-20 1978-01-20 Antenna Pending JPS5498553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP553678A JPS5498553A (en) 1978-01-20 1978-01-20 Antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP553678A JPS5498553A (en) 1978-01-20 1978-01-20 Antenna

Publications (1)

Publication Number Publication Date
JPS5498553A true JPS5498553A (en) 1979-08-03

Family

ID=11613903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP553678A Pending JPS5498553A (en) 1978-01-20 1978-01-20 Antenna

Country Status (1)

Country Link
JP (1) JPS5498553A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63133703A (en) * 1986-11-25 1988-06-06 Sumitomo Electric Ind Ltd Dual beam antenna
JPH01309405A (en) * 1988-06-07 1989-12-13 Mitsubishi Electric Corp Antenna
US5111214A (en) * 1986-10-10 1992-05-05 Hazeltine Corporation Linear array antenna with E-plane backlobe suppressor
US5151707A (en) * 1986-10-10 1992-09-29 Hazeltine Corporation Linear array antenna with e-plane backlobe suppressor
JP2001251135A (en) * 2000-03-06 2001-09-14 Japan Science & Technology Corp Polarization sharing antenna
JP2004104682A (en) * 2002-09-12 2004-04-02 Ntt Docomo Inc Antenna device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111214A (en) * 1986-10-10 1992-05-05 Hazeltine Corporation Linear array antenna with E-plane backlobe suppressor
US5151707A (en) * 1986-10-10 1992-09-29 Hazeltine Corporation Linear array antenna with e-plane backlobe suppressor
JPS63133703A (en) * 1986-11-25 1988-06-06 Sumitomo Electric Ind Ltd Dual beam antenna
JPH0467805B2 (en) * 1986-11-25 1992-10-29 Sumitomo Electric Industries
JPH01309405A (en) * 1988-06-07 1989-12-13 Mitsubishi Electric Corp Antenna
JP2001251135A (en) * 2000-03-06 2001-09-14 Japan Science & Technology Corp Polarization sharing antenna
JP2004104682A (en) * 2002-09-12 2004-04-02 Ntt Docomo Inc Antenna device

Similar Documents

Publication Publication Date Title
ES229477Y (en) FOLDING NUT.
NL7713137A (en) CIRCULAR ANTENNA WITH ELEVATION ADJUSTABLE DIRECTION DIAGRAM.
AU508796B2 (en) Electronically scanned antenna
JPS5498553A (en) Antenna
SE7603520L (en) ANTENNA
BR7906359A (en) TERMINAL FOR SOLAR PANELS AND DEVICE FOR CONNECTING THE TERMINAL TO A PANEL
NL175567B (en) FLAT RADAR ANTENNA WITH SWITCHABLE BUNDLE SHAPE.
JPS5451445A (en) Directional coupler
AU509066B2 (en) Manufacturing single faced corrugated board
IT1113047B (en) DIRECTIONAL ANTENNA DEVICE WITH ELECTRONICALLY CONTROLLED BEAM ORIENTATION
SE7701419L (en) ANTENNA
AU505005B2 (en) Reinforced corrugated paper
MX145746A (en) IMPROVEMENTS IN MIXING VALVE WITH FOLDING SHIRT
AT348729B (en) CONNECTOR FOR AT LEAST TWO PLATE ELEMENTS, WITH TWO COUPLING LINKS
JPS5331936A (en) Antenna unit
DK129580A (en) DEVICE WITH AT LEAST TWO OVER A POWER PARTS CONNECTED ANTENNA WITH DIRECTIONAL OR RADIOUS CHARACTERISTICS
JPS5530239A (en) Parabolic antenna
BE857024A (en) FOLDING CARAVAN WITH AWNING
SU1840024A1 (en) Flat equidistant antenna array with reflector of open construction
JPS5337350A (en) End fire type slot array antenna
JPS5377446A (en) Space feed array antenna
JPS5335458A (en) Antenna
BR5601453U (en) IMPROVEMENT IN AND REGARDING THE YAGI TYPE ANTENNA
JPS5315044A (en) Multi-frequency common-use antenna
BR5600004U (en) CONSTRUCTIVE ARRANGEMENTS IN PARABOLIC ANTENNAS