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Class Information
Number: 342/403
Name: Communications: directive radio wave systems and devices (e.g., radar, radio navigation) > Directive > Beacon or receiver > With transmisson of bearing or position determinative signals > Tacan > Receiver only > Vor > Doppler > With circular array of antennas
Description: Subject matter wherein the antennas are arranged in a ring shaped pattern.

Patents under this class:

Patent Number Title Of Patent Date Issued
7720437 Zero-order energy smart antenna and repeater May. 18, 2010
7613482 Method and system for steering antenna beam Nov. 3, 2009
6283454 Apparatus for fence repair and construction Sep. 4, 2001
6229473 Arrangements for the one-dimensional or multi-dimensional determination of the position of a load suspension point in hoists May. 8, 2001
6094166 Conical omni-directional coverage multibeam antenna with parasitic elements Jul. 25, 2000
4745411 Digital gain adjustment May. 17, 1988

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