Radio frequency mixer circuits

Details Radio frequency mixer circuits Radio frequency mixer circuits

1991-12-20

1992-06-30

Kuntz, Curtis

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455330, H04B 126

Patent

active

051271028

ABSTRACT:
A mixer having a diode pair which includes a first RF propagation network having a first end coupled to a first terminal of the mixer and a second end coupled to a first electrode of the diode pair. The mixer further includes a first means, coupled to the first RF propagation network for providing a low impedance DC signal path to ground and for providing a high impedance signal path to signals propagating at a first radio frequency (RF) frequency. A first transmission line resonator is coupled to the first RF propagation network and has an electrical pathlength which is one quarter of a wavelength at a second RF frequency. The mixer further includes a second RF propagation network having a first end coupled to a second terminal of the mixer and a second end of the RF propagation network coupled to a second electrode of the diode pair. A second transmission line resonator is coupled to the second RF propagation network and has an electrical pathlength which is one quarter of a wavelength at the first RF frequency. The mixer further includes a second means, having a first end coupled to the second RF propagation network and a second end coupled to a third terminal of the mixer, for providing a matched impedance signal path between said second RF propagation network and the third terminal of the mixer to signals propagating at a third RF frequency and for providing a high impedance at said first end of said second means to signals propagating along the second RF propagation network at the second RF frequency.

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patent: 4998293 (1991-03-01), Nobory
W-Band Monolithic Subharmonically Pumped Receiver Components, G. L. Lan, J. C. Chen, C. K. Pao, and W. S. Wong, Hughes Aircraft Company Microwave Products Division, Torrance, Calif.
"Radio Frequency Conversion Circuits", Ser. No. 07/599,581 Paul A. Bernkopf, Filed Oct. 18, 1990.

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