FINAL REPORT PHASE MEASUREMENT AND CONTROL OF HARMONIC AND SPURIOUS MICROWAVE ENERGY

摘要

With the objective of reducing unwanted microwave r-f radiations to a negligible value, filter specifications with regard to such factors as stop band insertion loss, power handling capacity, and pass band characteristics were determined, and the state of the art was reviewed for applicable filter types.nThe filter mechanisms which were selected for study were the -coupled resonator filters, the corrugated waveguide filters, the higher mode resonance filters, and the absorptive type filters 1) based on directional couplers, 2) using ferrite materials and 3) using the leaky wall principle. Each of the types considered can find successful applications, but the leaky wall absorptive type is the most promising for use in high power systems and, therefore, was studied at greater length. Each type of filter is described herein and the advantages and shortcomings of each are discussed.