HIGH FREQUENCY, WIDE BAND, TRIPLE BALANCED MIXER

摘要

A triple balanced mixer includes two miniature diodequad rings (12, 14) positioned on opposite faces of aduroid sheet (16) which is integral with a duroid layer(18) of one of three pairs of parallel baluns (28, 30,32). An LO balun pair (30) is connected directly to thering terminals (80, 82, 84, 86) while ribbon connectors(34, 36) are used to interconnect the other balun pairs(28, 32) to the ring terminals (80, 82, 84, 86, 88, 90,92, 94). The baluns (28, 30, 32) are orthogonallydisposed and have a particular curved shape in order toaccomodate the miniature rings (12, 14). The rings (12,14) are suspended from the baluns (28, 30, 32) andpositioned within a cavity (38) of a housing (20) which isprovided with electromagnetic energy absorbent materialand which is selectively dimensioned to minimize signalloss from the pairs of baluns (28, 30, 32), balunconnectors (34, 36) and rings (12, 14).