Robert A Whitman

US Patent:

39463923, Mar 23, 1976

Filed:

Feb 19, 1975

Appl. No.:

5/551187

Inventors:

Robert E. Whitman - Asbury Park NJ

Assignee:

The United States of America as represented by the Secretary of the Army - Washington DC

International Classification:

H01Q 136

US Classification:

343830

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.