JPS55127703A - Antenna unit - Google Patents

Antenna unit

Info

Publication number
JPS55127703A
JPS55127703A JP3433479A JP3433479A JPS55127703A JP S55127703 A JPS55127703 A JP S55127703A JP 3433479 A JP3433479 A JP 3433479A JP 3433479 A JP3433479 A JP 3433479A JP S55127703 A JPS55127703 A JP S55127703A
Authority
JP
Japan
Prior art keywords
antenna
feeding
band
interval
rotated
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
JP3433479A
Other languages
Japanese (ja)
Inventor
Tasuku Morooka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3433479A priority Critical patent/JPS55127703A/en
Publication of JPS55127703A publication Critical patent/JPS55127703A/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

Landscapes

  • Details Of Aerials (AREA)

Abstract

PURPOSE:To obtain a small-size and wide-band antenna where impedance matching to a feeder can be facilitated, by piling up plural plate-shaped antennas in parallel at an interval and by making it possible that they are rotated with the part near the feeding part as the rotation axis. CONSTITUTION:Plate-shaped feeding antenna 1 and parasitic antennas 2 and 3 having the same form as antenna 1 are piled up at interval d. Parasitic antennas 2 and 3 are fitted to axis 4 and can be rotated for feeding antenna 1. When rotation angle theta is changed, the mutual coupling between feeding antenna 1 and parastic antenna 2 and 3 is changed to change the feeding point impedance. Therefore, this antenna can select optimum rotation angle theta in the used band to obtain matching, so that the antenna can be used throughout a wide band.
JP3433479A 1979-03-26 1979-03-26 Antenna unit Pending JPS55127703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3433479A JPS55127703A (en) 1979-03-26 1979-03-26 Antenna unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3433479A JPS55127703A (en) 1979-03-26 1979-03-26 Antenna unit

Publications (1)

Publication Number Publication Date
JPS55127703A true JPS55127703A (en) 1980-10-02

Family

ID=12411232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3433479A Pending JPS55127703A (en) 1979-03-26 1979-03-26 Antenna unit

Country Status (1)

Country Link
JP (1) JPS55127703A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237701A (en) * 1984-05-11 1985-11-26 Yagi Antenna Co Ltd Self-complementary antenna
JPS63193701A (en) * 1987-02-06 1988-08-11 Nippon Telegr & Teleph Corp <Ntt> Two frequency resonant print dipole antenna
JPH06114299A (en) * 1991-09-16 1994-04-26 Plastic Flamecoat Syst Inc Flame spray coating device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60237701A (en) * 1984-05-11 1985-11-26 Yagi Antenna Co Ltd Self-complementary antenna
JPH037283B2 (en) * 1984-05-11 1991-02-01 Yagi Antena Kk
JPS63193701A (en) * 1987-02-06 1988-08-11 Nippon Telegr & Teleph Corp <Ntt> Two frequency resonant print dipole antenna
JPH0777325B2 (en) * 1987-02-06 1995-08-16 日本電信電話株式会社 Dual frequency resonant printed dipole antenna
JPH06114299A (en) * 1991-09-16 1994-04-26 Plastic Flamecoat Syst Inc Flame spray coating device

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