Since 1981, RM Microwave has developed filter networks involving the use of evanescent modes of propagation that offered a good combination of size and insertion loss, as well as unique lumped element networks with symmetrical response, dielectric resonator designs (1 MHz bandwidth with a center frequency of 8 GHz!), compact high power, low-loss notch filters, the smallest possible multiplexers, filters with wide passbands and wide stopbands combined with high power capability (1-4 GHz passband, stopband to 20GHz, 1 KW operation), blind-mate filters (as small as drop-in designs) for high isolation applications, Bessel-Thompson world standard filters (our OR series) for use in optical communication systems, and a host of other unique products for system application including: in-line bandpass filters with finite transmission zeroes, reduced size high power filters, wide band high power filters, and other developlments.  We have developed a series of unique multimode filters employing both waveguide and dielectric resonators, in a configuration allowing for pseudo-elliptic responses but with in-line physical configuration, coupled with high power operation and wide stopbands.  Our new filter topologies include the use of multiple waveguide modes, in “bypass” configurations, enhancing the in-line configurations with additional transmission zeros for very sharp rejection characteristics.

RS Microwave utilizes the latest computer-aided design techniques with standardized mechanical approaches to minimize size, cost, and delivery time while optimizing performance. Our filters and multiplexers are on many of the U.S. government QPL or NSN lists as standard approved items.  Our filter products have been under the sea, on the ground, in tanks, in fighters, bombers, missiles, and satellites.  We are considered “best of breed” in small size or high power.

• High quality RF & Microwave Filters – 1 MHz to 50 GHz for Military & Commerical Communications, Radar, ECM & Cellular
• Unique Products – In-line bandpass filters with finite transmission zeroes, reduced size & wide band high power filters
• Filters with wide passbands & stopbands (1-4 GHz passband, stopband to 20 GHz, 1 KW operation)
• 1 MHz to 40 GHz
• Duplexers
• Combiners
• Switched Filter Banks
• RF/Microwave (MW)