ISSTT Proceedings

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Quasi-Optical Antenna-Mixer-Array Design for Terahertz Frequencies

Authors:
Yong Guo, Kent A. Potter, David B. Rutledge
Abstract:
A new quasi-optical antenna-mixer-array design for terahertz frequencies is presented in this paper. In the design, antenna and mixer are combined into an entity, based on the technology in which millimeter-wave horn antenna arrays have been fabricated in silicon wafers. It consists of a set of forward- and backward-looking horns made with a set of silicon wafers. The front side is used to receive incoming signal, and the back side is used to feed local oscillator signal. Intermediate frequency is led out from the side of the array. Signal received by the horn array is picked up by antenna probes suspended on thin silicon-oxynitride membranes inside the horns. Mixer diodes will be located on the membranes inside the horns. Modeling of such an antenna-mixer-array design is done on a scaled model at microwave frequencies. The impedance matching, RF and LO isolation, and patterns of the array have been tested and analyzed.
Categories:
Antennas & Telescopes, Miscellaneous
Year:
1992
Session:
6
Full-text:
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Page Number(s):
291-297