Accession Number : AD0609475

Title :   BRIDGED 'T' EXTENSION.

Descriptive Note : Final rept.,

Corporate Author : ELECTRO-MECHANICS CO AUSTIN TEX

Personal Author(s) : Flannery,W. T.

Report Date : OCT 1964

Pagination or Media Count : 85

Abstract : A series of four tunable rejection networks having attenuations between 80 db and 100 db have been developed to cover the frequency range of 1 to 10 Gc. Right circular cylindrical cavities with appropriate tuning stubs are used to produce the same electrical characteristics as are found in a lumped parameter Bridged-T network. The main objectives of this study were to develop networks which would permit use on high power systems, have maximum attenuation at the rejection frequency and low insertion loss at all other frequencies. The principal use of these networks is for the measurement of small spurious signals in the presence of a large carrier signal, for the purpose of electromagnetic compatibility analysis. Various other methods and networks were evaluated during the study and it was concluded that the resonant cavity devices used in the equivalent Bridged-T configuration were superior. Models have been fabricated and tested and their performance characteristics are reported together with substantiating theoretical treatment. (Author)

Descriptors :   (*RADIOFREQUENCY FILTERS, MICROWAVE NETWORKS), (*TEST EQUIPMENT, RADIOFREQUENCY FILTERS), (*RADIOFREQUENCY INTERFERENCE, TEST EQUIPMENT), ATTENUATION, RESONANCE, CAPACITORS, ULTRAHIGH FREQUENCY, NARROWBAND, FREQUENCY MODULATION, SUPERHIGH FREQUENCY, CYLINDRICAL BODIES, MILITARY REQUIREMENTS, PARTIAL DIFFERENTIAL EQUATIONS

Distribution Statement : APPROVED FOR PUBLIC RELEASE