Accession Number : ADD009540

Title :   MIC Combiner Using Unmatched Diodes.

Descriptive Note : Patent,


Personal Author(s) : Gerlach,Horst W A

Report Date : 06 Apr 1982

Pagination or Media Count : 7

Abstract : In a microstrip circuit having dual diode driven, independently oscillating, half-wave open ring resonating sections, partially coupled quarter-wave ring sections are provided to permit matching and tuning of diodes having dissimilar negative impedances. The quarter wave ring sections are combined with appropriate line sections to accommodate the negative impedance devices. The diode circuits are connected to the low impedance points of the oscillating ring sections by the quarter-wave ring sections. Appropriate terminations to ground are provided to suppress possible oscillations in a bias circuit. Second and third harmonic traps are provided for use with TRAPATT diodes. Ground lines are provided to reduce circuit unbalance in the event of drastic power changes occuring on either side of the circuit which may other wise result in odd mode operation. Slots are provided to suppress an undesired transverse resonance mode in the line sections accommodating the negative impedance devices. (Author)

Descriptors :   *Patents, *Electronic combiners, *Semiconductor diodes, Microwave equipment, Suppressors, Trapatt devices, Integrated circuits, Oscillation, Strip transmission lines, Circuits, Ground level, Diodes, Third harmonic generation, Rings, Traps, Sides, Harmonics, Impedance, Waves, Bias

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE