Odd order MESFET frequency multiplier

Details Odd order MESFET frequency multiplier Odd order MESFET frequency multiplier

1997-04-21

1999-03-23

Gensler, Paul

Wave transmission lines and networks

Frequency multipliers

327123, 333 33, H01P 120, H03H 1104

Patent

active

058865950

ABSTRACT:
An odd order MESFET frequency multiplier which outputs a desired odd harmonic of a fundamental tone. The frequency multiplier includes a multiplier stage with a MESFET having a harmonic response dependent upon a plurality of bias conditions and the input RF power level. The MESFET includes a drain port coupled to an output matching network sized and configured for a predetermined load at a selected output frequency. The output matching network includes RF shorts for reflecting energy to the MESFET from a plurality of undesired even harmonics. Coupled to the output matching circuit is a bandpass filter sized and configured for the predetermined load. The bandpass filter includes RF shorts for reflecting energy to the MESFET from a plurality of undesired odd harmonics, wherein the reflected energy from the undesired even harmonics and the undesired odd harmonics are combined at the MESFET to provide additional energy at the desired odd harmonic.

REFERENCES:
patent: 3402340 (1968-09-01), Ringereide
patent: 5146178 (1992-09-01), Nojima et al.

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