Telescopic antenna assembly

Details Telescopic antenna assembly Telescopic antenna assembly

1997-10-03

1999-08-24

Wong, Don

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 343853, H01Q 136

Patent

active

059430273

ABSTRACT:
A telescopic antenna assembly provides pairs of arms (210, 220, 230 and 240) on an elongated dielectric tube (260). A hot conductor (273) and a ground conductor (275) of a group of exciters couple energy between the arms and a feed line (250). The hot and ground conductors (273) and (275) slide within the tube (260) between extended and retracted positions while maintaining efficient electromagnetic coupling to the arms.

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Tay, Roger et al., "Wide Beamwidth Antenna System and Method for Making the Same", U.S.S.N. 08/567,698, Dec. 5, 1995, Atty. Docket No. CM01903J.
Filipovic, Daniel et al., "A Coupled-Segment Quadrifilar Helical Antenna", IEEE MTT-Symposium on Technologies for Wireless Applications Digest , Vancouver, BC, Feb. 23-26, 1997, pp. 43-46.

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