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MX9701580A - Sistema de antena de doble helice. - Google Patents

Sistema de antena de doble helice.

Info

Publication number
MX9701580A
MX9701580A MX9701580A MX9701580A MX9701580A MX 9701580 A MX9701580 A MX 9701580A MX 9701580 A MX9701580 A MX 9701580A MX 9701580 A MX9701580 A MX 9701580A MX 9701580 A MX9701580 A MX 9701580A
Authority
MX
Mexico
Prior art keywords
ram
wipers
bodymaker
latter moves
cups
Prior art date
Application number
MX9701580A
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 MX9701580A publication Critical patent/MX9701580A/es

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)

Abstract

Un sistema de antena de doble hélice (10) comprendido de conductores de hélice de enrollado helicoidal. La antena de doble hélice (10) incluye un primer conductor de hélice (14) enrollado en una primera direccion alrededor de un eje vertical, V, de la antena de doble hélice (10). Un segundo conductor de hélice (18) está enrollado en una segunda direccion alrededor del eje vertical, V. En una implementacion específica, el primero y el segundo conductores de hélice (14 y 18) son de diferentes longitudes, que respectivamente corresponden a una primera y una segunda bandas de frecuencia. Adicionalmente, el primero y el segundo conductores de hélice (14 y 18) se enrollan a fin de quedar ortogonales respecto a los planos horizontales dentro de los cuales el primero y el segundo conductores de hélice (14 y 18) se intersectan o bien se encuentran separados en forma mínima en la dimension horizontal. Esta relacion de enrollado ortogonal entre los conductores de hélice reduce considerablemente el acoplamiento mutuo, permitiendo así la operacion de antenas helicoidales separadas en proximidad física estrecha.
MX9701580A 1995-06-16 1996-06-17 Sistema de antena de doble helice. MX9701580A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/490,925 US5708448A (en) 1995-06-16 1995-06-16 Double helix antenna system
PCT/US1996/010459 WO1997000542A1 (en) 1995-06-16 1996-06-17 Double helix antenna system

Publications (1)

Publication Number Publication Date
MX9701580A true MX9701580A (es) 1997-05-31

Family

ID=23950073

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9701580A MX9701580A (es) 1995-06-16 1996-06-17 Sistema de antena de doble helice.

Country Status (14)

Country Link
US (1) US5708448A (es)
EP (1) EP0776531B1 (es)
CN (1) CN1158188A (es)
AT (1) ATE223622T1 (es)
AU (1) AU701389B2 (es)
CA (1) CA2199724C (es)
DE (1) DE69623415T2 (es)
DK (1) DK0776531T3 (es)
ES (1) ES2182997T3 (es)
FI (1) FI970814A7 (es)
MX (1) MX9701580A (es)
PT (1) PT776531E (es)
RU (1) RU2172046C2 (es)
WO (1) WO1997000542A1 (es)

Families Citing this family (29)

* 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
AU1475000A (en) 1998-11-09 2000-05-29 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
GB2399948B (en) * 2003-03-28 2006-06-21 Sarantel Ltd A dielectrically-loaded antenna
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
RU2356137C1 (ru) * 2007-12-24 2009-05-20 Федеральное государственное образовательное учреждение высшего профессионального образования "МУРМАНСКИЙ ГОСУДАРСТВЕННЫЙ ТЕХНИЧЕСКИЙ УНИВЕРСИТЕТ" (ФГОУ ВПО "МГТУ") "карусельная" антенна кругового излучения вертикальной поляризации
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 (13)

* 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
US3906509A (en) * 1974-03-11 1975-09-16 Raymond H Duhamel Circularly polarized helix and spiral antennas
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
RU2013830C1 (ru) * 1991-04-16 1994-05-30 Гомельский государственный университет им.Франциска Скорины Биспиральная антенна
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
US5708448A (en) 1998-01-13
DE69623415D1 (de) 2002-10-10
AU701389B2 (en) 1999-01-28
ATE223622T1 (de) 2002-09-15
PT776531E (pt) 2002-12-31
WO1997000542A1 (en) 1997-01-03
ES2182997T3 (es) 2003-03-16
CA2199724C (en) 2002-08-20
EP0776531A1 (en) 1997-06-04
DK0776531T3 (da) 2002-11-04
HK1012780A1 (en) 1999-08-06
DE69623415T2 (de) 2003-04-30
AU6334696A (en) 1997-01-15
EP0776531B1 (en) 2002-09-04
FI970814A0 (fi) 1997-02-26
CA2199724A1 (en) 1997-01-03
CN1158188A (zh) 1997-08-27
RU2172046C2 (ru) 2001-08-10
FI970814A7 (fi) 1997-03-25

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