AU5363396A - Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission - Google Patents

Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission

Info

Publication number
AU5363396A
AU5363396A AU53633/96A AU5363396A AU5363396A AU 5363396 A AU5363396 A AU 5363396A AU 53633/96 A AU53633/96 A AU 53633/96A AU 5363396 A AU5363396 A AU 5363396A AU 5363396 A AU5363396 A AU 5363396A
Authority
AU
Australia
Prior art keywords
transmission
impedance matching
variable capacitance
matching system
frequency reception
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.)
Abandoned
Application number
AU53633/96A
Inventor
Art H. Unwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from US08/406,421 external-priority patent/US5625367A/en
Priority claimed from US08/594,096 external-priority patent/US5790081A/en
Application filed by Individual filed Critical Individual
Publication of AU5363396A publication Critical patent/AU5363396A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
    • 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
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • H01Q9/145—Length of element or elements adjustable by varying the electrical length
AU53633/96A 1995-03-20 1996-03-13 Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission Abandoned AU5363396A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US406421 1982-08-09
US594096 1984-03-28
US08/406,421 US5625367A (en) 1995-03-20 1995-03-20 Variable capacitance antenna for multiband reception and transmission
US08/594,096 US5790081A (en) 1996-01-30 1996-01-30 Constant impedance matching system
PCT/US1996/003420 WO1996029758A1 (en) 1995-03-20 1996-03-13 Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission

Publications (1)

Publication Number Publication Date
AU5363396A true AU5363396A (en) 1996-10-08

Family

ID=27019508

Family Applications (1)

Application Number Title Priority Date Filing Date
AU53633/96A Abandoned AU5363396A (en) 1995-03-20 1996-03-13 Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission

Country Status (3)

Country Link
EP (1) EP0815614A1 (en)
AU (1) AU5363396A (en)
WO (1) WO1996029758A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028709A (en) * 1975-09-10 1977-06-07 The United States Of America As Represented By The Field Operations Bureau Of The Federal Communications Commission Adjustable yagi antenna
US4398201A (en) * 1981-03-16 1983-08-09 Winegard Company Antenna director and method therefor
ES517418A0 (en) * 1982-11-16 1983-11-01 Bel Moratalla Joaquin IMPROVEMENTS IN THE TRANSMITTER-RECEIVER ANTENNAS.
US4593289A (en) * 1983-04-18 1986-06-03 Butternut Electronics Co. Multi-band dipole antenna with matching stubs
DE3642436A1 (en) * 1986-12-12 1988-06-23 Reinhard Schneider Tunable antenna
DE4005982A1 (en) * 1990-02-26 1990-09-13 Werner Thueuel Horizontal broad band antenna - has operation over 5 short wave bands with low noise
DE4244661A1 (en) * 1991-07-19 1994-01-20 Victor Menzlewski Two band single element short wave antenna - acts as half wave surface wave dipole and twice five eighths lambda directional antenna with third harmonic excitation
CA2097122A1 (en) * 1992-06-08 1993-12-09 James Hadzoglou Adjustable beam tilt antenna

Also Published As

Publication number Publication date
WO1996029758A1 (en) 1996-09-26
EP0815614A1 (en) 1998-01-07

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