Electrically short transmission line antenna

Details Electrically short transmission line antenna Electrically short transmission line antenna

1975-02-19

1976-03-23

Lieberman, Eli

Communications: radio wave antennas

Antennas

Fractional, multiple, or full wave length linear type

343845, 343895, H01Q 136

Patent

active

039463923

ABSTRACT:
At least one but preferably two shorted transmission line antenna sections, ach comprised of a vertical member shorting a horizontal printed circuit transmission line member to a ground plane with the transmission lines being adjustable in length for tuning by utilization of a flexible braid transmission line member connected between the printed circuit transmission line member and a take-up spindle which is adapted to be rotated and accordingly wind or unwind the braid member thereon. The feed point is at the connection of a pair of fixed capacitors, one of which is connected to ground plane while the other is connected to the take-up spindle.

REFERENCES:
patent: 2431124 (1947-11-01), Kees et al.
patent: 2578154 (1951-12-01), Shanklin

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