Circuit arrangement for producing and stable amplification...

Details Circuit arrangement for producing and stable amplification... Circuit arrangement for producing and stable amplification...

H - Electricity

03

B

331/14

H03B 7/06 (2006.01) H03B 9/14 (2006.01) H03F 3/60 (2006.01) H03B 1/00 (2006.01)

Patent

CA 1139851

ABSTRACT OF THE DISCLOSURE A circuit arrangement for generating and stably am- plifying broadband rf signals. The circuit arrangement includes a first rectangular waveguide designed for operation in a frequency range below its cutoff frequency and a second rectangular waveguide for operation at the operating fre- quency. An active semiconductor element is disposed in the first rectangular waveguide and a direct voltage is supplied to the semiconductor element. At least one waveguide section is provided for connecting the first and second rectangular waveguide. and has the same width as the second rectangular waveguide and a height less than the second rectangular waveguide. The waveguide section matches the cross section of the first rectangular waveguide to the cross section of the second rectangular waveguide. A plurality of tuning devices are disposed in the first rectangular waveguide and the waveguide section and include a capacitively acting tuning screw and an inductively acting tuning device, the latter being disposed in an end of the first rectangular waveguide remote from the waveguide section.

329982

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