JPS55165004A - Antenna unit - Google Patents

Antenna unit

Info

Publication number
JPS55165004A
JPS55165004A JP7325179A JP7325179A JPS55165004A JP S55165004 A JPS55165004 A JP S55165004A JP 7325179 A JP7325179 A JP 7325179A JP 7325179 A JP7325179 A JP 7325179A JP S55165004 A JPS55165004 A JP S55165004A
Authority
JP
Japan
Prior art keywords
antenna
sleeve
power feed
polarization characteristics
directions
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
JP7325179A
Other languages
Japanese (ja)
Other versions
JPS624002B2 (en
Inventor
Toshio Takegawa
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.)
Yokowo Co Ltd
Original Assignee
Yokowo Mfg 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 Yokowo Mfg Co Ltd filed Critical Yokowo Mfg Co Ltd
Priority to JP7325179A priority Critical patent/JPS55165004A/en
Publication of JPS55165004A publication Critical patent/JPS55165004A/en
Publication of JPS624002B2 publication Critical patent/JPS624002B2/ja
Granted 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

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To enable to select the circular and horizontal polarization characteristics, by combining the sleeve having slots to one pole antenna element and switching the power feed lines. CONSTITUTION:The sleeve antenna 55 folding externally the sleeve 3 is formed by taking the antenna element 4 as a center and the slot antenna 56 consisting of the slot 2 provided on the sleeve 3 is formed. When the power feed points P1, P2 are selected so that the phase of power feed current of the power feed points P1, P2 of the antenna 56 is shifted by 90 deg. to the phase of the power feed current of the antenna 55, the antenna unit 1 shows the circular polarization characteristics to all the directions. The antenna section 56 is formed by containing the element 4 in the sleeve 3, but no power feed is made to the sleeve 3 and the antenna section 56 is not formed and the unit 1 shows the horizontal polarization characteristics to all the directions.
JP7325179A 1979-06-11 1979-06-11 Antenna unit Granted JPS55165004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7325179A JPS55165004A (en) 1979-06-11 1979-06-11 Antenna unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7325179A JPS55165004A (en) 1979-06-11 1979-06-11 Antenna unit

Publications (2)

Publication Number Publication Date
JPS55165004A true JPS55165004A (en) 1980-12-23
JPS624002B2 JPS624002B2 (en) 1987-01-28

Family

ID=13512765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7325179A Granted JPS55165004A (en) 1979-06-11 1979-06-11 Antenna unit

Country Status (1)

Country Link
JP (1) JPS55165004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650215A2 (en) * 1993-09-29 1995-04-26 Ntt Mobile Communications Network Inc. Antenna equipment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08138402A (en) * 1994-11-07 1996-05-31 Noda Denshi Kogyo Kk Card type light

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650215A2 (en) * 1993-09-29 1995-04-26 Ntt Mobile Communications Network Inc. Antenna equipment
EP0650215A3 (en) * 1993-09-29 1995-09-06 Nippon Telegraph & Telephone Antenna equipment.
US5617105A (en) * 1993-09-29 1997-04-01 Ntt Mobile Communications Network, Inc. Antenna equipment

Also Published As

Publication number Publication date
JPS624002B2 (en) 1987-01-28

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