Array antenna and a method of determining an antenna beam...

Details Array antenna and a method of determining an antenna beam... Array antenna and a method of determining an antenna beam...

2007-04-13

2010-11-09

Issing, Gregory C (Department: 3662)

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

Directive

Including antenna pattern plotting

C342S372000

Reexamination Certificate

active

07830307

ABSTRACT:
A method of determining one or more attributes of an antenna beam based on measuring phase and/or amplitude differences at different points in a feed network. Amplitude and/or phase are measured by a probe (13) at an input to a differential variable element (7, 8, 9) and by a probe (14) at fewer than all of the outputs of the differential variable element. By using lookup tables based on actual measurements of antenna beam attributes for phase and/or amplitude differences at different points in a feed network computation may be simplified. The method enables a relatively inexpensive control circuit to be employed while providing accurate measurement of antenna beam attributes.

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