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SG78395A1 - Two-resonance helical antenna capable of suppressing fluctuation in electric characteristic without restriction in size of a helical coil - Google Patents

Two-resonance helical antenna capable of suppressing fluctuation in electric characteristic without restriction in size of a helical coil

Info

Publication number
SG78395A1
SG78395A1 SG1999004685A SG1999004685A SG78395A1 SG 78395 A1 SG78395 A1 SG 78395A1 SG 1999004685 A SG1999004685 A SG 1999004685A SG 1999004685 A SG1999004685 A SG 1999004685A SG 78395 A1 SG78395 A1 SG 78395A1
Authority
SG
Singapore
Prior art keywords
restriction
size
electric characteristic
antenna capable
resonance
Prior art date
Application number
SG1999004685A
Other languages
English (en)
Inventor
Iwao Hamaaratsu
Original Assignee
Tokin 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
Application filed by Tokin Corp filed Critical Tokin Corp
Publication of SG78395A1 publication Critical patent/SG78395A1/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08Helical antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/10Resonant antennas
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/378Combination of fed elements with parasitic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26Resonant 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
    • H01Q9/27Spiral antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
SG1999004685A 1998-09-25 1999-09-22 Two-resonance helical antenna capable of suppressing fluctuation in electric characteristic without restriction in size of a helical coil SG78395A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10271726A JP2000101331A (ja) 1998-09-25 1998-09-25 2共振ヘリカルアンテナ

Publications (1)

Publication Number Publication Date
SG78395A1 true SG78395A1 (en) 2001-02-20

Family

ID=17503995

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1999004685A SG78395A1 (en) 1998-09-25 1999-09-22 Two-resonance helical antenna capable of suppressing fluctuation in electric characteristic without restriction in size of a helical coil

Country Status (11)

Country Link
US (1) US6191755B1 (zh)
EP (1) EP0989630A1 (zh)
JP (1) JP2000101331A (zh)
KR (1) KR20000023396A (zh)
CN (1) CN1135656C (zh)
AU (1) AU752822B2 (zh)
CA (1) CA2282783C (zh)
MY (1) MY115929A (zh)
NO (1) NO994457L (zh)
SG (1) SG78395A1 (zh)
TW (1) TW443077B (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9907190D0 (en) * 1999-03-30 1999-05-26 Ganeshmoorthy David Antenna connector bushing and coil assembly
US6476768B2 (en) * 2000-04-08 2002-11-05 Mrw Technologies Ltd. Wireless transmitting and receiving antenna
US6340955B1 (en) * 2000-07-24 2002-01-22 Auden Techno Corp. Combining method for internal and external insulating sleeves of an antenna on a communication instrument
KR100421245B1 (ko) * 2000-12-30 2004-03-04 주식회사 이엠따블유안테나 사용가능 주파수 범위 및 이득을 동시에 향상시키는 방법
KR100374752B1 (ko) * 2001-02-26 2003-03-03 (주)이.엠.더블유 안테나 임피던스 변성기의 제조방법
KR100406352B1 (ko) * 2001-03-29 2003-11-28 삼성전기주식회사 안테나 및 그 제조방법
JP2003069327A (ja) * 2001-08-28 2003-03-07 Nec Saitama Ltd 携帯型無線通信装置のアンテナ構造及びこのアンテナ構造を備えた携帯型無線通信装置
US6483479B1 (en) * 2001-08-29 2002-11-19 Auden Techno Corp. Instantly welded antenna and its method of welding
US6608605B2 (en) * 2001-12-10 2003-08-19 Hewlett-Packard Development Company, L.P. Multi-band uniform helical antenna and communication device having the same
CN1675794A (zh) * 2002-06-06 2005-09-28 盖尔创尼克斯公司 单极螺旋天线的多波段改进
US20040183744A1 (en) * 2003-03-18 2004-09-23 Raiman Clifford E. Antenna for explosive environments
GB2409108B (en) * 2003-12-13 2006-07-12 Motorola Inc A radio unit and an antenna arrangement therefor
US7733284B2 (en) * 2005-03-14 2010-06-08 Galtronics Ltd. Broadband land mobile antenna
US8053849B2 (en) * 2005-11-09 2011-11-08 Advanced Micro Devices, Inc. Replacement metal gate transistors with reduced gate oxide leakage
JP4925685B2 (ja) * 2006-02-15 2012-05-09 株式会社日本自動車部品総合研究所 アンテナホルダ
KR101332544B1 (ko) * 2007-01-09 2013-11-22 엘지전자 주식회사 휴대 단말기
BRPI0907305A2 (pt) 2008-04-17 2016-07-05 Synchrony Inc "máquina"
KR101639212B1 (ko) * 2014-06-11 2016-07-13 삼영쎌레트라(주) 멀티 밴드 안테나
US10873357B2 (en) * 2017-05-02 2020-12-22 Deere & Company Smart attachment for a work vehicle

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61208904A (ja) * 1985-03-13 1986-09-17 Sharp Corp ヘリカルアンテナ装置
JP2832476B2 (ja) 1990-02-14 1998-12-09 望 長谷部 ヘリカルアンテナ
US5559524A (en) * 1991-03-18 1996-09-24 Hitachi, Ltd. Antenna system including a plurality of meander conductors for a portable radio apparatus
JPH05275919A (ja) * 1992-03-27 1993-10-22 Hitachi Ltd 小形携帯無線機用メアンダ・ヘリカルアンテナ
JP3643411B2 (ja) 1995-08-31 2005-04-27 日本電業工作株式会社 ホイップアンテナ
JPH1022730A (ja) * 1996-07-05 1998-01-23 Yokowo Co Ltd アンテナおよび該アンテナをロッド状アンテナの先端に設けたアンテナ装置
WO1998002936A1 (en) 1996-07-16 1998-01-22 Qualcomm Incorporated Modified helical antenna
US5717409A (en) 1996-08-02 1998-02-10 Lucent Technologies Inc. Dual frequency band antenna system
JPH10341105A (ja) * 1997-06-09 1998-12-22 Matsushita Electric Ind Co Ltd アンテナ装置
JPH11234026A (ja) 1997-12-18 1999-08-27 Whitaker Corp:The デュアルバンドアンテナ
SE511255C2 (sv) 1998-01-30 1999-09-06 Moteco Ab Antennanordning för dubbla frekvensband
KR100356196B1 (ko) * 1998-03-19 2002-10-12 마쯔시다덴기산교 가부시키가이샤 2주파 대응 안테나 장치 및 이를 사용한 이동 통신기기

Also Published As

Publication number Publication date
KR20000023396A (ko) 2000-04-25
AU4758799A (en) 2000-03-30
CN1249547A (zh) 2000-04-05
JP2000101331A (ja) 2000-04-07
CA2282783A1 (en) 2000-03-25
TW443077B (en) 2001-06-23
AU752822B2 (en) 2002-10-03
NO994457D0 (no) 1999-09-14
US6191755B1 (en) 2001-02-20
CN1135656C (zh) 2004-01-21
EP0989630A1 (en) 2000-03-29
MY115929A (en) 2003-09-30
CA2282783C (en) 2004-07-13
NO994457L (no) 2000-03-27

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