Frequency multiplier

Details Frequency multiplier Frequency multiplier

2006-02-14

2006-02-14

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Frequency multipliers

C333S250000, C327S116000, C327S123000

Reexamination Certificate

active

06998941

ABSTRACT:
The invention can be used for telecommunications, measuring and other devices in order to produce stable superhigh frequency signals. An IMPATT diode (4) operating in the cascade break-down mode and having a sharp nonlinearity transforms an input signal in such a way that ultraharmonics which multiple in respect to the frequency of an input signal ω0occur in a frequency spectrum. An output stage of a multiplier is used in order to separate an output nω0frequency and to suppress adjacent frequencies. In order to tune the output stage to the nω0frequency, a tuning plug (8) and short-circuiting pistons (13) are used. The tuning plug (8) is arranged above an upper electrod of the IMPATT diode (4) (inside the axis of the diode). The tuning plugs (13) make it possible to tune resonance capacitance to the nω0frequency and remove energy towards the output part of a T-bend in which a wave guide pass-band filter (15) is disposed. Said filter (15) is embodied in the form of sections of a waveguide (14) on whose E-plane a thin metallic diaphragm is arranged, said diaphragm being provided with windows (16) disposed along the axis of the waveguide. The inventive multiplier ensures high converting efficiency.

REFERENCES:
patent: 4636758 (1987-01-01), Mettoudi

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