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1 April 1992 Quasi-optical solid-state microwave sources
Jonathan B. Hacker, Robert M. Weikle II, Moonil Kim, Michael P. De Lisio, David B. Rutledge
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Proceedings Volume 1629, Intense Microwave and Particle Beams III; (1992) https://doi.org/10.1117/12.137137
Event: OE/LASE '92, 1992, Los Angeles, CA, United States
Abstract
Quasi-optical power-combining offers the most promising method for extracting large amounts of power from solid-state devices in the microwave and millimeter-wave range. This technique can be applied to a variety of devices. The difficulties associated with traditional waveguides power-combiners such as skin-effect losses are eliminated because the signals are combined in free-space. The solid-state devices are embedded in a two-dimensional grid configuration and placed in a Fabry-Perot cavity. In this respect, the quasi-optical power-combiner is analogous to a laser oscillator in which the active medium of the laser is replaced with an array of active devices. The grid presents a reflection coefficient to an incident plane wave which is larger than unity and the resonator provides feedback to couple the devices together. The two-dimensional structure of the grid is amenable to modern photolithographic processing and potentially allows thousands of devices to be integrated monolithically.
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Jonathan B. Hacker, Robert M. Weikle II, Moonil Kim, Michael P. De Lisio, and David B. Rutledge "Quasi-optical solid-state microwave sources", Proc. SPIE 1629, Intense Microwave and Particle Beams III, (1 April 1992); https://doi.org/10.1117/12.137137
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KEYWORDS
Solid state electronics
Microwave radiation
Fabry–Perot interferometers
Oscillators
Resonators
Signal attenuation
Waveguides
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