Antenna with P.I.N. diode switched tuning inductors

Details Antenna with P.I.N. diode switched tuning inductors Antenna with P.I.N. diode switched tuning inductors

1981-12-01

1986-01-14

Lieberman, Eli

Communications: radio wave antennas

Antennas

With variable reactance for tuning antenna

343750, H01Q 900

Patent

active

045648433

ABSTRACT:
A tuned radio antenna for a frequency agile communication system has a plurality of tuning inductors in series with a short-circuiting switch for each inductor, each switch being formed by a pair or a plurality of pairs of P.I.N. diodes, control means being provided for applying biasing potentials to the diodes to effect switching of the antenna tuning.

REFERENCES:
patent: 3129386 (1964-04-01), Daly
patent: 3414833 (1968-12-01), Tolliver
patent: 3541450 (1970-11-01), Paine
patent: 3852759 (1974-12-01), Felsenheld et al.
patent: 3906514 (1975-09-01), Phelan
patent: 3909830 (1975-09-01), Campbell
patent: 3925784 (1975-12-01), Phelan
patent: 4201960 (1980-05-01), Skutta et al.
patent: 4201990 (1980-05-01), Altmayer
patent: 4343001 (1982-08-01), Anderson et al.
Hiller, "Discrete PIN Diodes Toggle UHF Switches", Microwaves, V. 19, No. 8, (pp. 58-60, 63-65).

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