Communications: radio wave antennas – Antennas – With variable reactance for tuning antenna
Patent
1983-12-05
1986-02-18
Lieberman, Eli
Communications: radio wave antennas
Antennas
With variable reactance for tuning antenna
343749, 343702, 343845, H01Q 916, H01Q 124
Patent
active
045715955
ABSTRACT:
A dual band antenna for a radio transceiver includes an inductively loaded conductor of a predetermined length with feedpoint located substantially central of the conductor. Radiator elements terminate the ends of the conductor and a ground plane terminates the radiator elements. An adjustable balanced impedance matching circuit is coupled to the feedpoint. Dual banding elements couple to the impedance matching circuit with a high Q, parallel resonant circuit element. Input and output circuits are also coupled to the dual banding elements. The design minimizes the effect on the antenna operation by the proximity of the user's hands and head since the high impedance portion of the antenna is confined to the center thereof.
REFERENCES:
patent: 2514992 (1950-07-01), Edelsohn
patent: 2759183 (1956-08-01), Woodward
patent: 3465344 (1969-09-01), Scott et al.
patent: 3573628 (1971-04-01), Cramer et al.
patent: 3946392 (1976-03-01), Whitman
patent: 3956701 (1976-05-01), James, Jr. et al.
patent: 4095229 (1978-06-01), Elliott
patent: 4307438 (1981-12-01), Grubb
patent: 4388672 (1983-06-01), Skill
patent: 4471493 (1984-09-01), Schober
Kazecki Henry L.
Phillips James P.
Lieberman Eli
Motorola Inc.
Parker Margaret M.
Wimer Michael C.
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