Microwave coupler

Details Microwave coupler Microwave coupler

2006-02-21

2006-02-21

Le, Dinh T. (Department: 2816)

Wave transmission lines and networks

Plural channel systems

Having branched circuits

C333S238000

Reexamination Certificate

active

07002433

ABSTRACT:
A high power, TEM mode directional microwave coupler having low loss and expanded bandwidth uses novel thick suspended substrate conductors to provide multi-octave bandwidth performance in a practical package. Each of two center conductors is formed using metal layer deposited onto three surfaces of a thick dielectric substrate. The conductors, which can be edge-coupled or offset-coupled, form a novel structure in which the non-metallized side of the substrate is oriented toward the facing outside vertical walls. This effectively reduces the effect of the package wall on the coupling structure, permitting a smaller, constant-width dimension, which in turn raises the waveguide cut-off frequency. The result is a directional coupler with an extended high frequency performance, with reduced physical size and low loss.

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