Title :
Miniature monolithic microwave frequency diplexers
Author :
Simon, K.M. ; Schindler, M.J. ; Tajima, Y. ; Bertrand, A.M.
Author_Institution :
Raytheon Co., Lexington, MA, USA
Abstract :
Two novel diplexers composed of active, lumped, and transversal element filters that have been developed as monolithic microwave ICs (MMICs) are described. One diplexer produces a low-pass cutoff band edge at 7.5 GHz and a high-pass turn-on band edge at 9 GHz, while the second diplexer produces two passbands, one from 12.5-13.5 GHz and the other from 15.5-16.5 GHz. These are the first reported active MMIC diplexers. Both diplexers have 30 dB of signal rejection 1.5 GHz from their band edges. The use of active transversal filters produces the high rejection characteristic and yields compact diplexers that can be used as building blocks in miniature microwave-frequency multiplexing applications.<>
Keywords :
MMIC; active filters; field effect integrated circuits; microwave filters; FET; MMIC; active diplexer; lumped type; microwave frequency diplexers; miniature microwave-frequency multiplexing applications; monolithic microwave ICs; transversal element filters; Active filters; Band pass filters; FETs; Frequency; Low pass filters; MMICs; Microwave filters; Multiplexing; Passband; Transversal filters;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1990. Digest of Papers., IEEE 1990
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/MCS.1990.110938
