Broad band transmit and receive antenna

Communications: radio wave antennas – Antennas – With lumped reactance for loading antenna

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Details

343790, 343745, 343750, 343802, H01Q 124, H01Q 940

Patent

active

059823321

ABSTRACT:
An antenna (100) operable over a predetermined broad band and connected to a transmission line (102) includes a tip radiator (106) having a series capacitance (129) and a base radiator/choke (104) operatively connected to the tip radiator for changing feed point reactance values to values that provide a desired bandwidth to minimize the antenna's voltage standing wave ratio (VSWR) over frequencies in the predetermined broad band. The antenna also includes a choke assembly (108) operatively connected to the transmission line for suppressing current below a predetermined point of the antenna to maintain the desired bandwidth and VSWR.

REFERENCES:
patent: 2486597 (1949-11-01), Greene
patent: 2492404 (1949-12-01), Streib et al.
patent: 2509253 (1950-05-01), Schriefer
patent: 2727232 (1955-12-01), Pryga
patent: 4620194 (1986-10-01), Bel Moratalla
patent: 4890116 (1989-12-01), Lewis, Jr.
patent: 5089827 (1992-02-01), Pizon
patent: 5179387 (1993-01-01), Wells
patent: 5440317 (1995-08-01), Jalloul et al.
patent: 5604506 (1997-02-01), Rodal
Shakespeare Company, Military Communications (1996), pp. 1-12.

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