PT776531E - Sistema de antena de duplo helice - Google Patents

Sistema de antena de duplo helice

Info

Publication number
PT776531E
PT776531E PT96922487T PT96922487T PT776531E PT 776531 E PT776531 E PT 776531E PT 96922487 T PT96922487 T PT 96922487T PT 96922487 T PT96922487 T PT 96922487T PT 776531 E PT776531 E PT 776531E
Authority
PT
Portugal
Prior art keywords
helix
conductors
wound
double
antenna system
Prior art date
Application number
PT96922487T
Other languages
English (en)
Inventor
Raymond C Wallace
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of PT776531E publication Critical patent/PT776531E/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • 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

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Press Drives And Press Lines (AREA)
PT96922487T 1995-06-16 1996-06-17 Sistema de antena de duplo helice PT776531E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/490,925 US5708448A (en) 1995-06-16 1995-06-16 Double helix antenna system

Publications (1)

Publication Number Publication Date
PT776531E true PT776531E (pt) 2002-12-31

Family

ID=23950073

Family Applications (1)

Application Number Title Priority Date Filing Date
PT96922487T PT776531E (pt) 1995-06-16 1996-06-17 Sistema de antena de duplo helice

Country Status (15)

Country Link
US (1) US5708448A (pt)
EP (1) EP0776531B1 (pt)
CN (1) CN1158188A (pt)
AT (1) ATE223622T1 (pt)
AU (1) AU701389B2 (pt)
CA (1) CA2199724C (pt)
DE (1) DE69623415T2 (pt)
DK (1) DK0776531T3 (pt)
ES (1) ES2182997T3 (pt)
FI (1) FI970814A (pt)
HK (1) HK1012780A1 (pt)
MX (1) MX9701580A (pt)
PT (1) PT776531E (pt)
RU (1) RU2172046C2 (pt)
WO (1) WO1997000542A1 (pt)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3098430B2 (ja) * 1996-08-30 2000-10-16 埼玉日本電気株式会社 携帯無線機用ヘリカルアンテナ
US5945964A (en) * 1997-02-19 1999-08-31 Motorola, Inc. Multi-band antenna structure for a portable radio
US6204810B1 (en) 1997-05-09 2001-03-20 Smith Technology Development, Llc Communications system
US6311045B1 (en) * 1997-07-28 2001-10-30 Roke Manor Research Limited Apparatus for signal isolation in a radio transmitter-receiver
US6127979A (en) * 1998-02-27 2000-10-03 Motorola, Inc. Antenna adapted to operate in a plurality of frequency bands
US6137996A (en) * 1998-07-20 2000-10-24 Motorola, Inc. Apparatus and method for overcoming the effects of signal loss due to a multipath environment in a mobile wireless telephony system
KR100291554B1 (ko) * 1998-09-25 2001-07-12 김춘호 이동통신단말기용이중대역안테나
SE514773C2 (sv) * 1998-09-28 2001-04-23 Allgon Ab Radiokommunikationsenhet och antennsystem
US6078298A (en) * 1998-10-26 2000-06-20 Terk Technologies Corporation Di-pole wide bandwidth antenna
WO2000028621A1 (en) 1998-11-09 2000-05-18 Smith Technology Development, Llc Cavity-driven antenna system
GB2354115A (en) * 1999-09-09 2001-03-14 Univ Surrey Adaptive multifilar antenna
JP2001189604A (ja) * 1999-12-28 2001-07-10 Nec Corp 送受共用器及びそれを使用したアンテナ装置
US6275198B1 (en) 2000-01-11 2001-08-14 Motorola, Inc. Wide band dual mode antenna
US6373448B1 (en) 2001-04-13 2002-04-16 Luxul Corporation Antenna for broadband wireless communications
US8228235B2 (en) * 2004-03-15 2012-07-24 Elta Systems Ltd. High gain antenna for microwave frequencies
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US7817101B2 (en) * 2006-10-24 2010-10-19 Com Dev International Ltd. Dual polarized multifilar antenna
US20080094307A1 (en) * 2006-10-24 2008-04-24 Com Dev International Ltd. Dual polarized multifilar antenna
AU2008304622B2 (en) * 2007-09-24 2013-03-14 Boston Scientific Limited MRI phase visualization of interventional devices
JP5607641B2 (ja) * 2009-09-30 2014-10-15 日本曹達株式会社 フェノール性化合物及び記録材料
US20110215984A1 (en) * 2010-03-03 2011-09-08 Coburn William O'keefe Coaxial helical antenna
RU2458438C1 (ru) * 2011-07-15 2012-08-10 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Спиральная антенна
FR3061994A1 (fr) * 2017-01-19 2018-07-20 Tywaves Antenne et ses utilisations
US10461410B2 (en) 2017-02-01 2019-10-29 Calamp Wireless Networks Corporation Coaxial helix antennas
US11444644B2 (en) * 2019-06-17 2022-09-13 Purdue Research Foundation Systems and methods for mitigating multipath radio frequency interference
US11201602B1 (en) 2020-09-17 2021-12-14 Analog Devices, Inc. Apparatus and methods for tunable filtering
US11201600B1 (en) 2020-10-05 2021-12-14 Analog Devices, Inc. Apparatus and methods for control and calibration of tunable filters

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111669A (en) * 1960-11-25 1963-11-19 All American Eng Co Omnidirectional signal receiving system
US3940772A (en) * 1974-11-08 1976-02-24 Rca Corporation Circularly polarized, broadside firing tetrahelical antenna
US4011567A (en) * 1976-01-28 1977-03-08 Rca Corporation Circularly polarized, broadside firing, multihelical antenna
US4160979A (en) * 1976-06-21 1979-07-10 National Research Development Corporation Helical radio antennae
FR2654554B1 (fr) * 1989-11-10 1992-07-31 France Etat Antenne en helice, quadrifilaire, resonnante bicouche.
GB2246910B (en) * 1990-08-02 1994-12-14 Polytechnic Electronics Plc A radio frequency antenna
US5346300A (en) * 1991-07-05 1994-09-13 Sharp Kabushiki Kaisha Back fire helical antenna
US5349365A (en) * 1991-10-21 1994-09-20 Ow Steven G Quadrifilar helix antenna
GB2271670B (en) * 1992-10-14 1996-10-16 Nokia Mobile Phones Uk Wideband antenna arrangement
SE512062C2 (sv) * 1993-07-14 2000-01-17 Ericsson Ge Mobile Communicat Förfarande och anordning för att förbättra effektivitet och bandbredd för en antenn på en bärbar utrustning
AUPM277293A0 (en) * 1993-12-06 1994-01-06 Radio Frequency Systems Pty Limited Antenna assembly

Also Published As

Publication number Publication date
CA2199724C (en) 2002-08-20
ES2182997T3 (es) 2003-03-16
FI970814A (fi) 1997-03-25
DK0776531T3 (da) 2002-11-04
WO1997000542A1 (en) 1997-01-03
CA2199724A1 (en) 1997-01-03
EP0776531A1 (en) 1997-06-04
FI970814A0 (fi) 1997-02-26
RU2172046C2 (ru) 2001-08-10
HK1012780A1 (en) 1999-08-06
CN1158188A (zh) 1997-08-27
DE69623415D1 (de) 2002-10-10
EP0776531B1 (en) 2002-09-04
ATE223622T1 (de) 2002-09-15
DE69623415T2 (de) 2003-04-30
AU701389B2 (en) 1999-01-28
US5708448A (en) 1998-01-13
AU6334696A (en) 1997-01-15
MX9701580A (es) 1997-05-31

Similar Documents

Publication Publication Date Title
PT776531E (pt) Sistema de antena de duplo helice
RU2130673C1 (ru) Двухфункциональная антенна для портативного устройства радиосвязи
RU97104206A (ru) Двойная спиральная антенная система
FI99219B (fi) Kahdella taajuusalueella toimiva antenni
ES2038328T3 (es) Antena de tipo helice y su procedimiento de realizacion.
DE60126280D1 (de) Zweiband-patchantenne
ATE347183T1 (de) Gefaltete mono-bowtie-antennen und antennensysteme für zellulare und andere drahtlose kommunikationssysteme
BR9606576A (pt) Antena em hélice quadrifilar
CA2236548A1 (en) Antenna system
ATE421779T1 (de) Einrichtung durch eine antenne
SE0002375D0 (sv) An antenna for a portable communication apparatus, and a portable communication apparatus comprising such an antenna
EP0964475A2 (en) Dual band retractable antenna system with capacitive coupling
JPS639135Y2 (pt)
KR100575920B1 (ko) 휴대용 무선 단말기의 다이버시티 안테나 장치
JP2001007619A (ja) 線状アンテナおよびそれを用いた無線機
JP2843961B2 (ja) アンテナ装置
JPH01120108A (ja) 無線端末装置用アンテナ
JPH03274908A (ja) アンテナ
RU95103677A (ru) Магнитная антенна
SU843047A1 (ru) Логопериодическа антенна
SU1681353A1 (ru) Направленный ответвитель
KR900006774Y1 (ko) 광대역 안테나 정합장치
KR20020064571A (ko) 휴대용 무선단말기 안테나 장치
SE9904624D0 (sv) Anordning vid antenn
Mileski Passive surface deployed variable inductance wire antenna statement of government interest