Extensible top-loaded biconical antenna

Details Extensible top-loaded biconical antenna Extensible top-loaded biconical antenna

1999-03-23

2000-11-28

Ho, Tan

Communications: radio wave antennas

Antennas

Wave guide type

343752, H01Q 1300, H01Q 900

Patent

active

061541826

ABSTRACT:
An extensible top-loaded biconical antenna is modified to improve low frequency performance while retaining standard performance specifications when needed. The biconical antenna includes a balun and a pair of conical outrigger assemblies coupled to said balun. A conducting tophat plate is removably attached to the ends of each outrigger assembly. The tophats increase the capacitance of the antenna, thereby improving its low frequency gain by 10 dB or more.

REFERENCES:
patent: 2368663 (1945-02-01), Kandoian
patent: 3787865 (1974-01-01), McDowell et al.
patent: 3987456 (1976-10-01), Gelin
patent: 4851859 (1989-07-01), Rappaport

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