Reduced-layer isolated planar beamformer

Details Reduced-layer isolated planar beamformer Reduced-layer isolated planar beamformer

2005-01-11

2005-01-11

Vuong, Quochien B. (Department: 2685)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S561000, C343S70000R, C343S853000, C342S368000, C342S373000

Reexamination Certificate

active

06842631

ABSTRACT:
A planar beamformer (700) for use with a array antenna includes a dielectric sheet (210) defining first (210us) and second (2101s) broad sides. A strip conductor (32b) on the first side crosses over a similar strip conductor (32c) on the second side. In order to reduce coupling between the conductors in a stripline or microstrip context, a set of stripline- (or microstrip)-to-coplanar-waveguide transitions are incorporated into each strip conductor adjacent the crossover, and the crossover region conductors are narrowed. The transitions include petal elements coplanar with the strip conductors.

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patent: 6239762 (2001-05-01), Lier
patent: 6512934 (2003-01-01), Ihara et al.

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