Receiver module and mixer thereof

Details Receiver module and mixer thereof Receiver module and mixer thereof

1976-11-08

1978-02-07

Griffin, Robert L.

H04B 126

Patent

active

040729028

ABSTRACT:
A receiver module including a mode launcher, a band pass filter, a local oscillator and a balanced mixer for use in the frequency range 1 GHz to 1,000 GHz, wherein the components are all connected by an insular waveguide transmission line having a conductive image plane, a dielectric waveguide attached to the image plane by a thin film of plastic, the thin film being low loss in character and having a low permittivity compared with that of the dielectric waveguide, the ratio between the thickness of the thin film and the square root of the cross-sectional area of the dielectric waveguide being in the range from about 0.02 to about 1.0.; there also are disclosed signal processing components made of insular waveguide transmission lines including a directional coupler, a symmetrical quadrature hybrid coupler, and a ring resonator filter that can be used as a band rejection or band pass filter either with a single pole or multiple pole, as well as mode launchers for connecting the insular waveguide transmission line to a metal waveguide and a coaxial line.

REFERENCES:
patent: 3721903 (1973-03-01), Day
patent: 3854083 (1974-12-01), Hulderman et al.

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