Multiple frequency antenna feed system

Details Multiple frequency antenna feed system Multiple frequency antenna feed system

1980-09-11

1982-11-09

Moore, David K.

Communications: radio wave antennas

Antennas

Wave guide type

343772, H01Q 1300

Patent

active

043587704

ABSTRACT:
An multi-frequency antenna feed system has a corrugated conical horn and a diplexer interconnected serially to be operative in two frequency bands represented by frequencies f.sub.H and f.sub.L corresponding to wavelengths .lambda..sub.H and .lambda..sub.L respectively, where 2f.sub.L .ltoreq.f.sub.H. Corrugated grooves on the inner surface of the conical horn have the depth h, where .lambda..sub.L /4<h<.lambda..sub.L /2. The corrugated conical horn has the inside diameter at its reduced diameter end which is not less than 2.6.lambda..sub.o, where .lambda..sub.o designates a wavelength at which the depth of the corrugated grooves ranges from three quarters of the wavelength and one complete wavelength.

REFERENCES:
patent: 4168504 (1979-09-01), Davis
patent: 4199764 (1980-04-01), Williams et al.
patent: 4258366 (1981-03-01), Frosch et al.

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