JPS63169703U - - Google Patents

Info

Publication number
JPS63169703U
JPS63169703U JP1987060562U JP6056287U JPS63169703U JP S63169703 U JPS63169703 U JP S63169703U JP 1987060562 U JP1987060562 U JP 1987060562U JP 6056287 U JP6056287 U JP 6056287U JP S63169703 U JPS63169703 U JP S63169703U
Authority
JP
Japan
Prior art keywords
antenna
coil
magnet means
small diameter
magnet
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
JP1987060562U
Other languages
English (en)
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 filed Critical
Priority to JP1987060562U priority Critical patent/JPS63169703U/ja
Priority to US07/127,451 priority patent/US4849767A/en
Publication of JPS63169703U publication Critical patent/JPS63169703U/ja
Pending 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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • 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
    • H01Q7/06—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 with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Description

【図面の簡単な説明】
添付図面第１図〜第５図は実施例を示し、第１
図はヘリカルアンテナ本体の縦断側面図、第２図
は第１図矢示Ｐ方向から見た拡大側面図、第３図
は第２図の部分断面を含む側面図、第４図は第３
図矢示Ｑの拡大断面図、第５図は第１図矢示Ｏの
部分断面を含む拡大図、第６図は従来技術を示す
全体図をそれぞれ示している。 尚図中１……ヘリカルアンテナエレメント、２
……アンテナコネクタ、３……細径アンテナエレ
メント部、４……大径アンテナエレメント部、６
……アンテナコネクタ上部、７……細径アンテナ
コイル部、８……芯ロツド、１０……上方、２４
……周波数同調調節磁石手段、２５……筒体、２
６……磁石、２７……磁石部コイル、３５……可
変容量手段、をそれぞれ示している。

Claims (1)

  1. 【実用新案登録請求の範囲】 小型携帯用無線機のヘリカルアンテナであつて
    、コイルアンテナ部分に周波数同調調節磁石手段
    を有し、その磁石手段の位置調節によるアンテナ
    コイルのインダクタンスを可調節して受信周波数
    を種々調節するようにしたものに於いて； アンテナコネクタ上部６に絶縁材より成る芯ロ
    ツド８を設け、この芯ロツド８にコイル状に巻か
    れる比較的細い径の細径アンテナエレメント部３
    と、この細径アンテナエレメント部３に連なり、
    上記芯ロツド上方１０に位置する比較的大径の大
    径アンテナエレメント部４により、ヘリカルアン
    テナエレメント１が構成され、上記周波数同調磁
    石手段２４は、短い絶縁筒体２５と、この筒体２
    ５の中を進退する磁石２６と、上記絶縁筒体２５
    の回りに巻かれていて、上記細径コイル部７に連
    なる磁石部コイル２７より成り、この磁石手段２
    ４はコイルアンテナの径方向に配設されていると
    共に、更に、上記周波数同調磁石手段２４と、ア
    ンテナコネクタ２の間に位置する上記周波数同調
    磁石手段２４を変えた時に起きるアンテナ入力イ
    ンピーダンスとアンテナフイーダの特性インピー
    ダンスとの不調をインピーダンス整合する為の可
    変容量手段３５を有することを特徴とする小型携
    帯用無線機のヘリカルアンテナ。
JP1987060562U 1987-04-21 1987-04-21 Pending JPS63169703U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1987060562U JPS63169703U (ja) 1987-04-21 1987-04-21
US07/127,451 US4849767A (en) 1987-04-21 1987-12-02 Helical antenna for small portable wireless devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987060562U JPS63169703U (ja) 1987-04-21 1987-04-21

Publications (1)

Publication Number Publication Date
JPS63169703U true JPS63169703U (ja) 1988-11-04

Family

ID=13145831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987060562U Pending JPS63169703U (ja) 1987-04-21 1987-04-21

Country Status (2)

Country Link
US (1) US4849767A (ja)
JP (1) JPS63169703U (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651379A1 (fr) * 1989-08-31 1991-03-01 Pizon Ernest Antenne receptrice pour vehicule automobile.
US5300940A (en) * 1991-07-12 1994-04-05 Centurion International, Inc. Broadband antenna
US5594457A (en) * 1995-04-21 1997-01-14 Centurion International, Inc. Retractable antenna
US5793338A (en) * 1995-08-09 1998-08-11 Qualcomm Incorporated Quadrifilar helix antenna and feed network
US5572172A (en) * 1995-08-09 1996-11-05 Qualcomm Incorporated 180° power divider for a helix antenna
US5828348A (en) * 1995-09-22 1998-10-27 Qualcomm Incorporated Dual-band octafilar helix antenna
US5686927A (en) * 1995-11-03 1997-11-11 Centurion International, Inc. Retractable antenna
US5717408A (en) * 1995-12-18 1998-02-10 Centurion International, Inc. Retractable antenna for a cellular telephone
US5914689A (en) * 1997-06-25 1999-06-22 Centurion Intl., Inc. Antenna for a portable, wireless communication device
US6031495A (en) * 1997-07-02 2000-02-29 Centurion Intl., Inc. Antenna system for reducing specific absorption rates
US5977931A (en) 1997-07-15 1999-11-02 Antenex, Inc. Low visibility radio antenna with dual polarization
US6052088A (en) * 1997-08-26 2000-04-18 Centurion International, Inc. Multi-band antenna
US6075489A (en) * 1998-09-09 2000-06-13 Centurion Intl., Inc. Collapsible antenna
US6002372A (en) * 1998-09-09 1999-12-14 Centurion International, Inc. Collapsible antenna
US6252456B1 (en) 1999-07-29 2001-06-26 Motorola, Inc. Power amplifier load controller and method for controlling a power amplifier load
US6198443B1 (en) 1999-07-30 2001-03-06 Centurion Intl., Inc. Dual band antenna for cellular communications
US7072698B2 (en) 1999-09-13 2006-07-04 Skyworks Solutions, Inc. Directional antenna for hand-held wireless communications device
KR100421245B1 (ko) * 2000-12-30 2004-03-04 주식회사 이엠따블유안테나 사용가능 주파수 범위 및 이득을 동시에 향상시키는 방법
US6434372B1 (en) * 2001-01-12 2002-08-13 The Regents Of The University Of California Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission
US7209096B2 (en) * 2004-01-22 2007-04-24 Antenex, Inc. Low visibility dual band antenna with dual polarization
US7242367B2 (en) * 2004-07-28 2007-07-10 Valcom Manufacturing Group Inc. Coded antenna
GB2422959A (en) * 2005-02-07 2006-08-09 Phillip James Forshaw A method of variable tuning for a loop antenna
CH701524A1 (de) * 2009-07-22 2011-01-31 Kistler Holding Ag Elektromechanisches Fügemodul mit Kraftaufnehmer.
RU2488927C1 (ru) * 2012-03-16 2013-07-27 Научно-Производственное Общество С Ограниченной Ответственностью "Кв-Связь" Перестраиваемая резонансная антенна с согласующим устройством

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527169U (ja) * 1975-07-02 1977-01-19

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523251A (en) * 1967-02-27 1970-08-04 William S Halstead Antenna structure with an integrated amplifier responsive to signals of varied polarization
US3487463A (en) * 1968-03-25 1969-12-30 William C Rogers Marker beacon antenna
US3474453A (en) * 1968-07-10 1969-10-21 Frank E Ireland Whip antenna with adjustable tuning
US3781899A (en) * 1973-01-17 1973-12-25 Gte Sylvania Inc Flexible helical spring antenna
US4163981A (en) * 1978-03-27 1979-08-07 Wilson Thomas J Spring tunable helical whip antenna

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527169U (ja) * 1975-07-02 1977-01-19

Also Published As

Publication number Publication date
US4849767A (en) 1989-07-18

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