Polyphase Microwave, Inc. is a wholly-owned subsidiary of Technology Service Corporation that manufactures high-performance specialty mixer components, assemblies, and instrumentation for demanding RF/microwave transmitters and receivers. Our products are critical elements in wireless communications systems, radar/EW systems, test instrumentation, and scientific R&D. We stock a complete line of specialty mixer components including image-reject mixers, quadrature (I/Q) modulators, quadrature (I/Q) demodulators, and single-sideband modulators. Our standard products are often just the starting point for a customized solution. Our experienced engineering staff is ready to discuss your application requirements and find the best solution for your system.