IT1172431B - Perfezionamenti alle antenne emittenti-riceventi - Google Patents

Perfezionamenti alle antenne emittenti-riceventi

Info

Publication number
IT1172431B
IT1172431B IT23730/83A IT2373083A IT1172431B IT 1172431 B IT1172431 B IT 1172431B IT 23730/83 A IT23730/83 A IT 23730/83A IT 2373083 A IT2373083 A IT 2373083A IT 1172431 B IT1172431 B IT 1172431B
Authority
IT
Italy
Prior art keywords
receiver
refinements
antennas
receiver antennas
Prior art date
Application number
IT23730/83A
Other languages
English (en)
Other versions
IT8323730A0 (it
IT8323730A1 (it
Inventor
Moratalla Joaquin Bel
Original Assignee
Moratalla Joaquin Bel
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 Moratalla Joaquin Bel filed Critical Moratalla Joaquin Bel
Publication of IT8323730A0 publication Critical patent/IT8323730A0/it
Publication of IT8323730A1 publication Critical patent/IT8323730A1/it
Application granted granted Critical
Publication of IT1172431B publication Critical patent/IT1172431B/it

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
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • H01Q9/145—Length of element or elements adjustable by varying the electrical length
IT23730/83A 1982-11-16 1983-11-15 Perfezionamenti alle antenne emittenti-riceventi IT1172431B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES517418A ES8404573A1 (es) 1982-11-16 1982-11-16 Perfeccionamientos en las antenas emisoras-receptoras.

Publications (3)

Publication Number Publication Date
IT8323730A0 IT8323730A0 (it) 1983-11-15
IT8323730A1 IT8323730A1 (it) 1985-05-15
IT1172431B true IT1172431B (it) 1987-06-18

Family

ID=8484926

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23730/83A IT1172431B (it) 1982-11-16 1983-11-15 Perfezionamenti alle antenne emittenti-riceventi

Country Status (17)

Country Link
US (1) US4620194A (it)
JP (1) JPS59101907A (it)
BE (1) BE898213A (it)
CA (1) CA1205903A (it)
DE (1) DE3340367A1 (it)
DK (1) DK521183A (it)
ES (1) ES8404573A1 (it)
FI (1) FI834178A (it)
FR (1) FR2536215B1 (it)
GB (1) GB2130803B (it)
IL (1) IL70171A0 (it)
IT (1) IT1172431B (it)
LU (1) LU85088A1 (it)
NL (1) NL8303912A (it)
NO (1) NO834181L (it)
PT (1) PT77643B (it)
SE (1) SE8306279L (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5262795A (en) * 1990-01-30 1993-11-16 Cellular Ic, Inc. Unitary cellular antenna system
US5274393A (en) * 1991-09-23 1993-12-28 Allied-Signal Inc. Adjustable helical antenna for a VHF radio
GB2274547A (en) * 1993-01-21 1994-07-27 David Doroba Antenna tuning arrangement
JPH0830749A (ja) * 1994-07-13 1996-02-02 Mitsubishi Electric Corp 非接触ｉｃカード
EP0815614A1 (en) * 1995-03-20 1998-01-07 Art H. Unwin Variable capacitance antenna with constant impedance matching system for multi frequency reception and transmission
US5625367A (en) * 1995-03-20 1997-04-29 Unwin; Art Variable capacitance antenna for multiband reception and transmission
US5955996A (en) * 1995-08-22 1999-09-21 Tandy Corporation Tunable fiberglass antenna
US5982332A (en) * 1998-10-19 1999-11-09 Shakespeare Company Broad band transmit and receive antenna
US6295443B1 (en) 1998-11-30 2001-09-25 Scott C Matthew Automatic tuning AM transmitter
US6791504B1 (en) * 2003-03-12 2004-09-14 R. A. Miller Industries, Inc. Tunable antenna system
US7176840B1 (en) 2005-04-08 2007-02-13 Michael Peter Kelley Variable spacing inductance coil apparatus and method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206820A (en) * 1938-12-07 1940-07-02 Galvin Mfg Corp Antenna system
US2866197A (en) * 1953-03-20 1958-12-23 Itt Tuned antenna system
GB781672A (en) * 1955-11-08 1957-08-21 Standard Telephones Cables Ltd Improvements relating to variable electrical phase-shifters for circularly polarisedwaves
US2993204A (en) * 1958-02-28 1961-07-18 Itt Two-band helical antenna
US3085215A (en) * 1960-02-15 1963-04-09 Jr Howard F Shepherd Precision variable winding impedance
GB1007896A (en) * 1961-03-01 1965-10-22 Pye Ltd Tunable aerials
US3293646A (en) * 1965-07-08 1966-12-20 Brueckmann Helmut Ferrite-filled, coaxial-stub, antenna tuner
US3623113A (en) * 1969-08-21 1971-11-23 Chu Associates Balanced tunable helical monopole antenna
US3671972A (en) * 1970-01-07 1972-06-20 Spilsbury Ashton J Adjustable center loaded antenna arrangement
US3818488A (en) * 1973-01-18 1974-06-18 Itt Shipboard yardarm half-wave antenna
US3909830A (en) * 1974-05-17 1975-09-30 Us Army Tactical high frequency antenna
US4201990A (en) * 1975-04-21 1980-05-06 Hustler, Inc. Tunable dipole antenna
FR2346901A1 (fr) * 1976-04-02 1977-10-28 Alliance Tech Ind Dispositif pour accorder en frequence une antenne radio
US4117492A (en) * 1977-07-26 1978-09-26 The United States Of America As Represented By The Secretary Of The Army Low profile remotely tuned dipole antenna
JPS5490952A (en) * 1977-11-29 1979-07-19 Arechavala Juan M Continuously frequency controlling antenna

Also Published As

Publication number Publication date
DK521183D0 (da) 1983-11-15
IT8323730A0 (it) 1983-11-15
FR2536215A1 (fr) 1984-05-18
ES517418A0 (es) 1983-11-01
DE3340367A1 (de) 1984-05-17
ES8404573A1 (es) 1983-11-01
SE8306279D0 (sv) 1983-11-15
PT77643A (en) 1983-12-01
FI834178A0 (fi) 1983-11-15
NL8303912A (nl) 1984-06-18
JPS59101907A (ja) 1984-06-12
BE898213A (fr) 1984-03-01
FI834178A (fi) 1984-05-17
IT8323730A1 (it) 1985-05-15
CA1205903A (en) 1986-06-10
GB2130803B (en) 1985-12-18
SE8306279L (sv) 1984-05-17
DK521183A (da) 1984-05-17
PT77643B (en) 1986-03-18
GB2130803A (en) 1984-06-06
LU85088A1 (fr) 1984-04-02
NO834181L (no) 1984-05-18
IL70171A0 (en) 1984-02-29
US4620194A (en) 1986-10-28
FR2536215B1 (fr) 1986-01-31
GB8330038D0 (en) 1983-12-14

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