Dual band monopole omni antenna

Details Dual band monopole omni antenna Dual band monopole omni antenna

1976-09-01

1978-04-04

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Plural diverse-type antennas using same active element

343708, 343722, 343725, H01Q 938

Patent

active

040830500

ABSTRACT:
A dual mode high-frequency printed circuit radar antenna for aircraft use having good aerodynamics is provided in the form of a printed circuit antenna molded into a smooth, blade-like protective shield. The antenna, printed on an epoxy glass substrate carried on a mounting plate including, integrated in series, a stub monopole element and a larger area capacitive loading member for I-band reception, an inductive member whose impedance is very high at I band and a monopole element which adds sufficient length that the entire conductor track acts as a quarter wave length monopole at C and D bands. At I band the stub monopole element and capacitive loading is isolated from the added monopole element by the high impedance inductive member, making for good I-band performance.

REFERENCES:
patent: 3210764 (1965-10-01), Anderson et al.
patent: 3453628 (1969-07-01), Dolan

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