CIRCULAR WAVEGUIDE DUPLEXERS AND CIRCULAR WAVEGUIDE MICROWAVE TRANSMISSION LINE,
Abstract
A survey is presented of the current state of the art in circular waveguide theory and technique. Results of prior work which was studied are correlated and presented along with a bibliography of sources consulted in the survey. This report describes the development of duplexers, load-toline isolators, adjustable attenuators, and controllable phase shifters to TE01 mode circular waveguide systems. Development problems are discussed and designs selected in overcoming these problems. These units were developed for each of two 6% frequency bands centered at 9.375 Gc (X band) and 35 Gc (K band). The K-band duplexers and isolators are designed around a zero-db coupler propagating the TE01 mode in a 0.752 inch ID primary circular waveguide, and TE10 mode in the secondary WR28 waveguide. Ferrites mounted in the secondary guide make coupling nonreciprocal. The X- and K-band phase shifters, the X-band isolators, and the X-band adjustable attenuators are built in cruciform waveguide with transitions from 0.725 inch ID or 2.710 inch ID circular guide at the input and output. Ferrites mounted in the cruciform waveguide encounter a circularly polarized microwave H-field permitting the ferrite to provide phase shift or nonreciprocal attenuation. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1964
- Accession Number
- AD0431733
Entities
People
- W. C. Heithaus
Organizations
- Sperry Corporation