Frequency combining circuit

Details Frequency combining circuit Frequency combining circuit

1976-10-26

1977-12-06

Gensler, Paul L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

330 49, 325445, H01P 518

Patent

active

040619907

ABSTRACT:
A frequency combining circuit in the form of a planar transmission circuit has a four-port directional coupler, two transmission lines respectively coupled to the forward and backward coupling ports of the directional coupler, and two filters respectively coupled to the two transmission lines, one of the two filters being further coupled to a load. By applying a first frequency signal to the coupler input port and applying a second frequency signal to the other one of the filters, the first and second frequency signals are combined in an excellent manner at the coupler output port of the coupler due to the provision of the two filters both of which reject the first frequency signal and pass therethrough the second frequency signal.

REFERENCES:
patent: 3218564 (1965-11-01), Seidel
patent: 3437935 (1969-04-01), Webb
patent: 3453638 (1969-07-01), Hoovler

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