Adaptive steerable null antenna processor

Details Adaptive steerable null antenna processor Adaptive steerable null antenna processor

1981-01-02

1981-11-03

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343854, 343100LE, H04B 700

Patent

active

042988730

ABSTRACT:
According to the invention, a receive-transmit steerable null antenna prosor includes incrementally adjustable delay lines and a variable ratio power network (amplitude balance control) for adjusting the relative phase and amplitude in two or more antenna branches to steer a null on an interference source. A digital controller compares a signal which includes a representation of the interference level to a previously sampled value to note improvement or not and adjusts the delay lines and amplitude balance accordingly.

REFERENCES:
patent: 4070675 (1978-06-01), Daniel et al.

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