SEMICONDUCTOR MICROWAVE AMPLITUDE AND PHASE MODULATOR.
Abstract
Research was continued on the development of a semiconductor microwave amplitude and phase modulator that makes use of the interaction of propagating electromagnetic fields with injected carriers in a semiconductor medium for application at a wavelength of 4.28 millimeters. A more flexible modulator configuration was analyzed in which adjustable susceptive irises were added to the semiconductor-loaded waveguide structure previously treated. In this new configuration resonance is no longer dependent solely on the semiconductor length. Numerical computations indicate that the structure with irises can provide somewhat lower insertion loss than that without irises but otherwise exhibits the same essential features. The possibility of realizing modulation bandwidths up to 1 mc was demonstrated in a reduced height test structure. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 15, 1963
- Accession Number
- AD0430958
Entities
People
- D. Fleri
- F. Drago
- J. Zucker
- R. Harrison