HIGH POWER MICROWAVE COMPONENTS IN OVERSIZED WAVEGUIDE
Abstract
The purpose of this investigation is to develop components for oversized waveguide configurations for which a/lambda and b/lambda are in the range of 1.5 - 2.25 for the TE sub 10 mode in rectangular waveguide and where D/ lambda is at least 1.7 for the TE sub 01 mode in circular waveguide. The components considered shall include E- and H-plane bends, mode absorbers, 3 db directional couplers, pressure windows, resonant rings and rotary joints. Where necessary, the theoretical and computer studies shall be verified before design data is finalized. These components may be developed through whatever design concepts are necessary to assure high peak and high average power. The present report presents experimental results at X-band for -3 db multihole side wall directional couplers. These couplers employ tapers along the coupling region to reduce the waveguide width from 2800 in. to 2.050 in. The reduction in width is necessary in order to increase the coupling per unit length. In this way a -3 db coupler having a length equal to 45 in. can be obtained. A method is described for cancelling the mode conversion caused by the tapers by means of metal and dielectric wedges placed on the side walls. Experimental results are presented for an X-band mode absorber in which the TE sub 30 mode in the 2.800 in. wide oversized waveguide is coupled to 0.933 in. wide waveguide by means of side wall slots.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1966
- Accession Number
- AD0486617
Entities
People
- Cousby Younger
- J. J. Jarek
- John P. Quine
Organizations
- General Electric