Waveguide-to-microstrip line coupling arrangement and a frequenc

Details Waveguide-to-microstrip line coupling arrangement and a frequenc Waveguide-to-microstrip line coupling arrangement and a frequenc

1985-02-14

1987-07-07

LaRoche, Eugene R.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455327, 333 26, 333 33, 333 21R, H04H 126, H01P 5107

Patent

active

046792490

ABSTRACT:
In a waveguide-to-microstrip line coupling arrangement, a microstrip line is placed on an outer surface of a wall of a waveguide which is coupled with the microstrip line via a metallic post connected at its one end to a center strip conductor of the microstrip line and is inserted inside the waveguide via through-holes made in a ground plane of the microstrip line and in the wall of the waveguide where the diameter of the through-hole made in the ground plane is made smaller than that of the through-hole made in the wall of the waveguide. The waveguide has a short-circuited end and the metallic post is placed close to the short-circuited end. The coupling arrangement may be used in a microwave frequency converter having an microwave integrated circuit including a local oscillator and a mixer, where the MIC is located on an outer surface of a longitudinal wall extending from a short-circuited end to an open end.

REFERENCES:
patent: 3928825 (1975-12-01), Kaffenberger et al.
patent: 3988702 (1976-10-01), Kaffenberger
patent: 4270224 (1981-03-01), Blondel et al.
patent: 4412354 (1983-10-01), Hu

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