BR9811656A - Antena helicoidal com varetas - Google Patents

Antena helicoidal com varetas

Info

Publication number
BR9811656A
BR9811656A BR9811656-8A BR9811656A BR9811656A BR 9811656 A BR9811656 A BR 9811656A BR 9811656 A BR9811656 A BR 9811656A BR 9811656 A BR9811656 A BR 9811656A
Authority
BR
Brazil
Prior art keywords
antenna
rods
helical antenna
time
harnessing
Prior art date
Application number
BR9811656-8A
Other languages
English (en)
Inventor
Michael R Barts
Warren L Stutzman
Original Assignee
Virginia Tech Intell Prop
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 Virginia Tech Intell Prop filed Critical Virginia Tech Intell Prop
Publication of BR9811656A publication Critical patent/BR9811656A/pt

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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • 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
    • 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
    • H01Q9/27—Spiral antennas

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Patente de Invenção: <B>"ANTENA HELICOIDAL COM VARETAS"<D>. Uma antena helicoidal com varetas localizadas ao longo do trajeto de curvatura de hélice e que se estendem até o eixo central da hélice, de forma tal que as caractarísticas de rendimento da antena, tais como o aproveitamento e a polarização circular, se conservem, ao mesmo tempo que a dimensão da antena, o diâmetro e a longitude, se reduzem.
BR9811656-8A 1997-07-03 1998-07-02 Antena helicoidal com varetas BR9811656A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/888,324 US5986621A (en) 1997-07-03 1997-07-03 Stub loaded helix antenna
PCT/US1998/013952 WO1999001908A1 (en) 1997-07-03 1998-07-02 Stub loaded helix antenna

Publications (1)

Publication Number Publication Date
BR9811656A true BR9811656A (pt) 2000-09-19

Family

ID=25392978

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9811656-8A BR9811656A (pt) 1997-07-03 1998-07-02 Antena helicoidal com varetas

Country Status (14)

Country Link
US (1) US5986621A (pt)
EP (1) EP1016164B1 (pt)
JP (1) JP3959123B2 (pt)
KR (1) KR100489795B1 (pt)
CN (1) CN1130796C (pt)
AT (1) ATE277430T1 (pt)
AU (1) AU762172B2 (pt)
BR (1) BR9811656A (pt)
CA (1) CA2295171C (pt)
DE (1) DE69826500T2 (pt)
ES (1) ES2226158T3 (pt)
HK (1) HK1029870A1 (pt)
PT (1) PT1016164E (pt)
WO (1) WO1999001908A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147660A (en) * 1997-06-03 2000-11-14 Galtronics Ltd. Molded antenna
US20010045914A1 (en) * 2000-02-25 2001-11-29 Bunker Philip Alan Device and system for providing a wireless high-speed communications network
US6373448B1 (en) 2001-04-13 2002-04-16 Luxul Corporation Antenna for broadband wireless communications
US6738026B1 (en) 2002-12-09 2004-05-18 Centurion Wireless Technologies, Inc. Low profile tri-filar, single feed, helical antenna
KR100604866B1 (ko) * 2004-06-08 2006-07-26 삼성전자주식회사 액정 표시 장치 구동을 위한 감마 구동 방식의 소스드라이버 및 소스 라인 구동 방법
US7614556B2 (en) * 2004-11-05 2009-11-10 Goliath Solutions, Llc Distributed RFID antenna array utilizing circular polarized helical antennas
US7414591B1 (en) 2005-08-26 2008-08-19 Lockheed Martin Corporation Helical antenna system
KR100822470B1 (ko) 2006-08-29 2008-04-16 삼성전자주식회사 오픈 스텁을 갖는 저주파대역 헬리컬 안테나
EP3166181A1 (fr) * 2015-11-05 2017-05-10 Gemalto Sa Procede de fabrication d'antenne radiofrequence sur un support et antenne ainsi obtenue
US10461410B2 (en) 2017-02-01 2019-10-29 Calamp Wireless Networks Corporation Coaxial helix antennas

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR719837A (fr) * 1930-10-13 1932-02-10 Telefunken Gmbh Perfectionnements aux antennes directives pour ondes courtes
BE475850A (pt) * 1946-09-17
GB769080A (en) * 1954-05-22 1957-02-27 Denis Evald Reinhold Lander Antenna for television and/or radio
US3524193A (en) * 1967-08-24 1970-08-11 Electronic Communications Collapsible helical antenna
US3568205A (en) * 1968-02-12 1971-03-02 Goodyear Aerospace Corp Novel helical antenna
US3716861A (en) * 1971-03-22 1973-02-13 J Root Serpentine antenna mounted on a rotatable capacitive coupler
US4475111A (en) * 1982-02-16 1984-10-02 General Electric Company Portable collapsing antenna
US5146234A (en) * 1989-09-08 1992-09-08 Ball Corporation Dual polarized spiral antenna
US5162806A (en) * 1990-02-05 1992-11-10 Raytheon Company Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies
WO1992013372A1 (en) * 1991-01-24 1992-08-06 Rdi Electronics, Inc. Broadband antenna
US5313216A (en) * 1991-05-03 1994-05-17 Georgia Tech Research Corporation Multioctave microstrip antenna
US5346300A (en) * 1991-07-05 1994-09-13 Sharp Kabushiki Kaisha Back fire helical antenna
US5517206A (en) * 1991-07-30 1996-05-14 Ball Corporation Broad band antenna structure
US5349365A (en) * 1991-10-21 1994-09-20 Ow Steven G Quadrifilar helix antenna
US5341148A (en) * 1991-11-29 1994-08-23 Trw Inc. High frequency multi-turn loop antenna in cavity
US5345248A (en) * 1992-07-22 1994-09-06 Space Systems/Loral, Inc. Staggered helical array antenna
US5359340A (en) * 1992-09-30 1994-10-25 Fujitsu Limited Helical antenna for portable radio communication equipment
US5450093A (en) * 1994-04-20 1995-09-12 The United States Of America As Represented By The Secretary Of The Navy Center-fed multifilar helix antenna

Also Published As

Publication number Publication date
EP1016164B1 (en) 2004-09-22
ATE277430T1 (de) 2004-10-15
PT1016164E (pt) 2005-01-31
JP2002508138A (ja) 2002-03-12
CA2295171A1 (en) 1999-01-14
JP3959123B2 (ja) 2007-08-15
HK1029870A1 (en) 2001-04-12
EP1016164A1 (en) 2000-07-05
US5986621A (en) 1999-11-16
DE69826500T2 (de) 2005-09-29
DE69826500D1 (de) 2004-10-28
CN1261991A (zh) 2000-08-02
ES2226158T3 (es) 2005-03-16
AU8476298A (en) 1999-01-25
AU762172B2 (en) 2003-06-19
KR100489795B1 (ko) 2005-05-16
KR20010020573A (ko) 2001-03-15
CN1130796C (zh) 2003-12-10
CA2295171C (en) 2005-10-18
EP1016164A4 (en) 2003-05-14
WO1999001908A1 (en) 1999-01-14

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE 13A. ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2108 DE 31/05/2011.