Method and system for producing antenna element signals for vary

Details Method and system for producing antenna element signals for vary Method and system for producing antenna element signals for vary

1996-07-29

1997-11-18

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342372, H01Q 322, H01Q 324, H01Q 326

Patent

active

056892721

ABSTRACT:
In a method and system for producing a plurality of antenna element signals that produce a selected antenna array pattern, first (56) and second (58) input signals are coupled to first (82) and second (84) amplifiers, respectively. The amplitude of said first input signal is modified (68) according to a first factor to produce a first modified signal, and the amplitude of said second input signal is modified (66) according to a second factor to produce a second modified signal. The first input signal is combined (48) with the second modified signal to produce a first combined signal, and the second input signal is combined (50) with the first modified signal to produce a second combined signal. Thereafter, the first combined signal and the second combined signal are amplified using first (82) and second (84) amplifiers, respectively. Next, the amplified signals are transformed with a transform matrix (96) to produce the plurality of antenna element signals.

REFERENCES:
patent: 5115248 (1992-05-01), Roederer
patent: 5548295 (1996-08-01), Lo Forti et al.
patent: 5563609 (1996-10-01), Wachs

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