Dielectric resonator image reject mixer and method

Details Dielectric resonator image reject mixer and method Dielectric resonator image reject mixer and method

1996-05-10

1997-05-13

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

Noise or interference elimination

455307, 455317, 455327, H04B 110

Patent

active

056302258

ABSTRACT:
A dielectric resonator image reject mixer and method comprises an amplifier for amplifying a receive frequency (RF) signal and outputting a first combined signal comprising a RF signal, a RF noise signal, and an image noise signal. A dielectric resonator image rejector is coupled to the amplifier. The dielectric resonator image rejector receives the first combined signal but outputs only a second combined signal comprising the RF signal and the RF noise signal to a mixer coupled to the dielectric resonator image rejector. The image noise signal is rejected by either reflection or resonant transmission to a resistor-terminated microstrip line. A mixer mixes the combined RF signal and the RF noise signal from the dielectric resonator image rejector with a local oscillation frequency signal, producing an intermediate frequency output signal.

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An article entitled "Dielectric Resonators Band Pass Filter with High Attenuation Rate" by P. Guillon et al., 1984 IEEE MTT-S Digest, Copyright 1984, pp. 240-242.

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