SSB AND VHF CRYSTAL FILTERS.
Abstract
This report covers the work performed on the design and construction of SSB and VHF crystal filters in the frequency range of 2 to 30 MC. An equimotional all-pole ten-crystal narrowband filter at 10.5 MC was designed and tested. Test results and an evaluation are presented. An equimotional ten-pole ten-zero ten-crystal narrow band filter at 10.5 MC was designed and exactly analyzed under lossy and lossless conditions. The theory, design procedure and schematic diagram are presented. A bimotional ten-pole ten-zero ten-crystal narrow band filter at 10.5 MC was designed and exactly analyzed under lossy and lossless conditions. The theory, design procedure, and numerical design calculations are presented. A bimotional ten-pole ten-zero tencrystal narrow band ladder filter at 20.0 MC was designed. Various 'normalized' lossless and lossy ladder filter designs were exactly analyzed and evaluated. At present the ladder filter with single-crystal terminal half-sections appears to be the most feasible design. The first experimental design of the 30 MC third overtone crystal filter was constructed, tested, and evaluated. Test results are presented and deficiencies and problems with their potential solutions are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1964
- Accession Number
- AD0455776
Entities
People
- E. C. Ho
- R. H. Tuznik
Organizations
- Hughes Aircraft Company