Split-phase technique for eliminating pattern nulls from a discr

Details Split-phase technique for eliminating pattern nulls from a discr Split-phase technique for eliminating pattern nulls from a discr

1990-05-31

1991-09-10

Tarcza, Thomas H.

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

Directive

Including a steerable array

H01Q 322

Patent

active

050477854

ABSTRACT:
A guard for an active antenna array is formed from first and second subarrays of the elements of the antenna, the first and second subarrays each being quadrant symmetric and having respective center phases which are 90 degrees apart. This arrangement greatly reduces nulls in the resultant guard pattern.

REFERENCES:
patent: 3725929 (1973-04-01), Spanos
patent: 3731315 (1973-05-01), Sheleg
patent: 4028710 (1977-06-01), Evans
patent: 4276551 (1981-06-01), Williams
patent: 4318104 (1982-03-01), Enein

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