Accession Number : ADD012214

Title :   Wide-Band Distributed RF Coupler.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Barnett,Larry R ; Lau,Yue-Ying ; Chu,Kwo C ; Granatstein,L

Report Date : 28 Jan 1986

Pagination or Media Count : 16

Abstract : A wide-band distributed coupler for coupling rf energy from and input waveguide inot a tapered interaction waveguide in a traveling-wave amplifier comprising a plurality of channel filters connecting between the input and interaction waveguides, with each filter coupled to the interaction waveguide at the appropriate cross-sectional position along its tapered length where the interaction waveguide cutoff frequency approximately matches the wave frequency propagated by the filter. Each filter comprises, in one embodiment, a main coaxial cavity tuned to a distinct center frequency, a first simple isolation cavity for coupling rf energy between the input waveguide and the main cavity, and at least one second simple isolation cavity for coupling energy between the main cavity and the tapered interaction waveguide. (Author)

Descriptors :   *PATENTS, *COUPLERS, *TRAVELING WAVE TUBES, *CAVITY RESONATORS, *WAVEGUIDES, COAXIAL CONFIGURATIONS, CROSS SECTIONS, COUPLING(INTERACTION), LENGTH, RADIOFREQUENCY, CHANNELS, POSITION(LOCATION), AMPLIFIERS, INTERACTIONS, FILTERS, BROADBAND, TAPER, ISOLATION, CAVITIES, INPUT, DISTRIBUTION, ENERGY, FREQUENCY, WAVES

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE