Switching circuit including pin diodes for impedance matching

Details Switching circuit including pin diodes for impedance matching Switching circuit including pin diodes for impedance matching

1982-07-08

1984-10-16

Lieberman, Eli

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

333 17M, H01Q 150

Patent

active

044778171

ABSTRACT:
An impedance matching network suitable for tuning an antenna includes a plurality of reactive elements and control circuits for selectively switching these elements into and out of the circuit. Each control circuit includes a pair of oppositely poled, normally reverse biased, PIN diodes connected in series across a reactive element and apparatus including a selectively controllable radiation responsive element for forward biasing the PIN diodes to thereby effectively switch a reactive element out of the network. In one arrangement, the reactive elements are formed from spaced, helically wound sections of a hollow conductive tube with the biasing voltages for the PIN diodes carried by conductors located within the tube.

REFERENCES:
patent: 1945735 (1934-02-01), Davis
patent: 2068990 (1937-01-01), Kolster et al.
patent: 2074896 (1937-03-01), Earnshaw
patent: 2102410 (1937-12-01), Fyler
patent: 2438116 (1948-03-01), Dodds et al.
patent: 2493746 (1950-01-01), Bowden
patent: 3179941 (1965-04-01), Harris
patent: 3454791 (1969-07-01), Mergner
patent: 3475700 (1969-10-01), Ertel
patent: 3522609 (1970-08-01), Ellis
patent: 3732425 (1973-05-01), Ellert et al.
patent: 3852759 (1974-12-01), Felsenheld
patent: 3864527 (1975-02-01), Topping
patent: 4296414 (1981-10-01), Beyer
patent: 4303831 (1981-12-01), Hamamsy
patent: 4359740 (1982-11-01), Frazita

Affiliated with

Also associated with

Rating

Switching circuit including pin diodes for impedance matching does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Switching circuit including pin diodes for impedance matching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switching circuit including pin diodes for impedance matching will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1947763