CA1128654A - Antenna system with variable directivity - Google Patents

Antenna system with variable directivity

Info

Publication number
CA1128654A
CA1128654A CA342,185A CA342185A CA1128654A CA 1128654 A CA1128654 A CA 1128654A CA 342185 A CA342185 A CA 342185A CA 1128654 A CA1128654 A CA 1128654A
Authority
CA
Canada
Prior art keywords
feeders
antenna system
electrical
antenna
feeding point
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.)
Expired
Application number
CA342,185A
Other languages
English (en)
French (fr)
Inventor
Masahiro Tada
Yoshio Ishigaki
Koya Nakamichi
Koji Ouchi
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.)
Sony Corp
Original Assignee
Sony Corp
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
Priority claimed from JP15821878A external-priority patent/JPS5585106A/ja
Priority claimed from JP15821978A external-priority patent/JPS5585105A/ja
Application filed by Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of CA1128654A publication Critical patent/CA1128654A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/005—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using remotely controlled antenna positioning or scanning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/247—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching by switching different parts of a primary active element
    • 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
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/265—Open ring dipoles; Circular dipoles

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
CA342,185A 1978-12-21 1979-12-18 Antenna system with variable directivity Expired CA1128654A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP158218/78 1978-12-21
JP15821878A JPS5585106A (en) 1978-12-21 1978-12-21 Antenna unit
JP15821978A JPS5585105A (en) 1978-12-21 1978-12-21 Desk top type antenna unit
JP158219/78 1978-12-21

Publications (1)

Publication Number Publication Date
CA1128654A true CA1128654A (en) 1982-07-27

Family

ID=26485415

Family Applications (1)

Application Number Title Priority Date Filing Date
CA342,185A Expired CA1128654A (en) 1978-12-21 1979-12-18 Antenna system with variable directivity

Country Status (7)

Country Link
US (1) US4338606A (enExample)
AU (1) AU532289B2 (enExample)
CA (1) CA1128654A (enExample)
DE (1) DE2951875A1 (enExample)
FR (1) FR2445041A1 (enExample)
GB (1) GB2039152B (enExample)
NL (1) NL192551C (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4380011A (en) * 1980-11-25 1983-04-12 Rca Corporation Loop antenna arrangement for inclusion in a television receiver
US4349840A (en) * 1980-11-25 1982-09-14 Rca Corporation Apparatus for automatically steering an electrically steerable television antenna
GB2100063B (en) * 1981-06-05 1985-03-13 Tokyo Shibaura Electric Co Antenna
US5152010A (en) * 1989-12-29 1992-09-29 American Nucleonics Corporation Highly directive radio receiver employing relatively small antennas
DE4220131C2 (de) * 1992-06-21 1996-03-14 Landstorfer Friedrich Aktive Empfangsantenne für einen Empfang im Nahfeld in Form einer Leiterschleife, insb. einer strahlenden geschlitzten Koaxialleitung
USD365101S (en) 1993-06-01 1995-12-12 Sony Electronics Inc. Combined universal remote control unit and stand
USD365102S (en) 1993-06-01 1995-12-12 Sony Electronics Inc. Universal remote control unit
US5900842A (en) * 1997-09-20 1999-05-04 Lucent Technologies, Inc. Inexpensive directional antenna that is easily tuned and weather resistant
DE19938862C1 (de) 1999-08-17 2001-03-15 Kathrein Werke Kg Hochfrequenz-Phasenschieberbaugruppe
US6911947B1 (en) 1999-09-08 2005-06-28 Thomson Licensing S.A. Method and apparatus for reducing multipath distortion in a television signal
EP1345419B1 (en) 1999-09-08 2009-11-11 Thomson Licensing Multi-element loop antenna
WO2001019075A2 (en) * 1999-09-08 2001-03-15 Thomson Licensing S.A. Method and apparatus for reducing multipath distortion in a television signal
DE10104564C1 (de) 2001-02-01 2002-09-19 Kathrein Werke Kg Steuerungsvorrichtung zum Einstellen eines unterschiedlichen Absenkwinkels insbesondere von zu einer Basisstation gehörenden Mobilfunkantennen sowie eine zugehörige Antenne und Verfahren zur Veränderung eines Absenkwinkels
DE10114314A1 (de) * 2001-03-23 2002-10-10 Siemens Gebaeudesicherheit Gmb Verfahren zur Funkübertragung in einem Gefahrenmeldesystem
DE10114313C2 (de) * 2001-03-23 2003-12-04 Siemens Gebaeudesicherheit Gmb Verfahren zur Funkübertragung in einem Gefahrenmeldesystem
JP4212046B2 (ja) * 2003-03-20 2009-01-21 株式会社リコー 指向性可変アンテナおよび該アンテナを用いた電子機器、ならびに該アンテナを用いたアンテナ指向性制御方法
US20070054639A1 (en) * 2005-09-06 2007-03-08 Bauman Mark A Apparatus and method for improving the reception of an information signal
KR101819220B1 (ko) * 2012-03-14 2018-01-16 삼성전자주식회사 무선통신 시스템에서 안테나 구조 및 동작 방법
RU2684903C1 (ru) * 2018-06-04 2019-04-16 Акционерное общество "Государственный Рязанский приборный завод" Приемник дециметрового диапазона

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247743A (en) * 1938-12-10 1941-07-01 Rca Corp Antenna
NL64189C (enExample) * 1939-04-26
US3202995A (en) * 1961-03-03 1965-08-24 Univ Tennessee Res Corp Steerable circular traveling-wave antenna
US3508274A (en) * 1966-12-14 1970-04-21 Raymond B Kesler Motor driven portable dipole antenna
US3623110A (en) * 1968-09-10 1971-11-23 Sony Corp Loop antenna with spaced impedance elements
US3671970A (en) * 1970-08-31 1972-06-20 Boeing Co Switched rhombic automatic direction finding antenna system and apparatus
US3894229A (en) * 1972-07-28 1975-07-08 Matsushita Electric Industrial Co Ltd Signal generator
DE2354667A1 (de) * 1973-11-02 1975-05-15 Maximilian Dr Waechtler Peilantennenanlage mit gruppenweise schaltbaren einzelantennen
US3981016A (en) * 1974-03-06 1976-09-14 Matsushita Electric Industrial Co., Ltd. Antenna apparatus for detecting an optimum directivity
FR2264290B1 (enExample) * 1974-03-12 1979-07-06 Thomson Csf
US3956751A (en) * 1974-12-24 1976-05-11 Julius Herman Miniaturized tunable antenna for general electromagnetic radiation and sensing with particular application to TV and FM
GB1507674A (en) * 1975-05-23 1978-04-19 C S Antennas Ltd Aerials
JPS5395486A (en) * 1977-01-31 1978-08-21 Sato Koki Kk Optical remote control transmitter
US4145694A (en) * 1977-08-01 1979-03-20 Sletten Carlyle J Compact, directive, broadband antenna system having end loaded dipoles
US4193077A (en) * 1977-10-11 1980-03-11 Avnet, Inc. Directional antenna system with end loaded crossed dipoles

Also Published As

Publication number Publication date
NL192551B (nl) 1997-05-01
FR2445041A1 (fr) 1980-07-18
NL7909206A (nl) 1980-06-24
AU5396579A (en) 1980-06-26
GB2039152B (en) 1982-12-15
GB2039152A (en) 1980-07-30
AU532289B2 (en) 1983-09-22
FR2445041B1 (enExample) 1984-10-19
NL192551C (nl) 1997-09-02
DE2951875C2 (enExample) 1991-03-14
DE2951875A1 (de) 1980-07-10
US4338606A (en) 1982-07-06

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Legal Events

Date Code Title Description
MKEX Expiry