Directive loop antenna

Details Directive loop antenna Directive loop antenna

1977-12-27

1980-01-15

Lieberman, Eli

Communications: radio wave antennas

Antennas

High frequency type loops

H01Q 700

Patent

active

041841646

ABSTRACT:
A square-loop directive antenna of half wavelength circumference is provided with improved front-to-back ratio and gain by placing capacitive reactances for 90.degree. phase shift in the sides, instead of inductive reactances as in the past, and with further improved front-to-back ratio and gain by placing divided reactances (inductive or capacitive) in the sides with just enough reactance to provide a phase shift of 22.5.degree. next to the driven side of the loop and the balance (90.degree.-22.5.degree.) next to the parasitic side of the loop.

REFERENCES:
patent: 2166750 (1939-07-01), Carter
patent: 2311872 (1943-02-01), Rote
patent: 3078462 (1963-02-01), Herman
patent: 3151328 (1964-09-01), Boyer
patent: 3971031 (1976-07-01), Burke
A.R.R.L. Antenna Book; p. 66, 1960, American Radio Relay League.

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