JPS56116304A - Antenna consisting of element including resistive body - Google Patents

Antenna consisting of element including resistive body

Info

Publication number
JPS56116304A
JPS56116304A JP1855180A JP1855180A JPS56116304A JP S56116304 A JPS56116304 A JP S56116304A JP 1855180 A JP1855180 A JP 1855180A JP 1855180 A JP1855180 A JP 1855180A JP S56116304 A JPS56116304 A JP S56116304A
Authority
JP
Japan
Prior art keywords
elements
antenna
resistors
antennas
power
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
JP1855180A
Other languages
Japanese (ja)
Other versions
JPH0132681B2 (en
Inventor
Isoichi Tanaka
Hideo Miyamoto
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.)
Koden Electronics Co Ltd
Original Assignee
Koden Electronics 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 Koden Electronics Co Ltd filed Critical Koden Electronics Co Ltd
Priority to JP1855180A priority Critical patent/JPS56116304A/en
Publication of JPS56116304A publication Critical patent/JPS56116304A/en
Publication of JPH0132681B2 publication Critical patent/JPH0132681B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array

Landscapes

  • Details Of Aerials (AREA)

Abstract

PURPOSE:To avoid the directivity disturbance due to mutual interference, by constituting antenna elements with electric resistors, in a directive antenna for direction finder, consisting of a plurality of antennas. CONSTITUTION:A plurality of vertical type antennas (a) are circumferentially located by taking an auxiliary antenna (b) as the center and they are connected to the antenna switching section (d) with connection cables (c) to constitute a Doppler direction measuring device. The antennas are constituted with elements 1, 2 consisting of resistors and are connected electrically and mechanically connected with joint tool 3. One end of a feeding line 7 is connected to the supporting fixture 5 of the element and ground 6 and another end is connected to the antenna switching section. The induced electromotive force is maximum at the resonance frequency in response to the antenna length is maximum, and the reradiation power is also increased. Since resistors are used for the elements 1, 2, a part of the induced power is consumed in the resistors, reradiated power is decreased and mutual interference between elements is removed. The resistor for elements is formed with conductive molding rod in which carbon fibers are mixed in plastic material greater in mechanical strength.
JP1855180A 1980-02-19 1980-02-19 Antenna consisting of element including resistive body Granted JPS56116304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1855180A JPS56116304A (en) 1980-02-19 1980-02-19 Antenna consisting of element including resistive body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1855180A JPS56116304A (en) 1980-02-19 1980-02-19 Antenna consisting of element including resistive body

Publications (2)

Publication Number Publication Date
JPS56116304A true JPS56116304A (en) 1981-09-12
JPH0132681B2 JPH0132681B2 (en) 1989-07-10

Family

ID=11974759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1855180A Granted JPS56116304A (en) 1980-02-19 1980-02-19 Antenna consisting of element including resistive body

Country Status (1)

Country Link
JP (1) JPS56116304A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602556A (en) * 1995-06-07 1997-02-11 Check Point Systems, Inc. Transmit and receive loop antenna
WO2004087439A1 (en) * 2003-03-31 2004-10-14 The Yokohama Rubber Co., Ltd. Sensor device for tire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53145596A (en) * 1977-05-25 1978-12-18 Nec Corp Bearing antenna device
JPS5441048A (en) * 1977-09-08 1979-03-31 Toray Industries Antenna
JPS5488051A (en) * 1977-12-26 1979-07-12 Akio Takizawa Extensible antenna mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53145596A (en) * 1977-05-25 1978-12-18 Nec Corp Bearing antenna device
JPS5441048A (en) * 1977-09-08 1979-03-31 Toray Industries Antenna
JPS5488051A (en) * 1977-12-26 1979-07-12 Akio Takizawa Extensible antenna mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602556A (en) * 1995-06-07 1997-02-11 Check Point Systems, Inc. Transmit and receive loop antenna
WO2004087439A1 (en) * 2003-03-31 2004-10-14 The Yokohama Rubber Co., Ltd. Sensor device for tire
US7293455B2 (en) 2003-03-31 2007-11-13 The Yokohama Rubber Co. Sensor device for tire having displaceable antenna
CN100439132C (en) * 2003-03-31 2008-12-03 横滨橡胶株式会社 Sensor device for tire

Also Published As

Publication number Publication date
JPH0132681B2 (en) 1989-07-10

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