NASA NTRS · 19830000252
Directional Coupler With Increased Directivity
Abstract
Diffraction loss reduced by curving one reflector. In improved diplexer, adjustable reflector has toroidal curvature to reduce diffraction loss through open cavity ends. Primarily used in local oscillator diplexers, new design increases signal to noise ratios and therefore ranges of millimeter and submillimeter hetrodyne receivers.
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Pickett, H. M., Chiou, A. E.. 1984-04-01. Directional Coupler With Increased Directivity. https://ntrs.nasa.gov/citations/19830000252
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