Technical Capabilities


MPG unites several industry-leading product brands — BSC Filters, Dow-Key Microwave, Espy, K&L Microwave, and Pole/Zero — all respected throughout the RF & Microwave industries for Connecting & Protecting People®

Our expertise is the design and manufacture of communications-based specialty products – engineered components and subsystems – for demanding military, space, commercial aerospace/industrial, and telecom infrastructure applications where function and reliability are crucial.

Major product categories include:

  • RF and microwave filters and switched filter banks
  • Low insertion loss, high reliability switches and switch matrices
  • Integrated co-site interference equipment and design solutions for maximizing communication system performance
  • Frequency-agile filters
  • Signal monitoring , analysis, and recording of wideband RF data streams for extended periods of time leveraging AI/ML technology
  • Manual and digitally-controlled tunable filters
  • Low PIM components and test rack assemblies for broadband emission monitoring

We offer standard, configurable or fully customizable high performance filter solutions for defense, wireless telecom and space applications.

MPG Brands

Pulling from a strong heritage of working with industry’s most demanding desires, MPG combines engineering expertise, innovation and manufacturing excellence to design, develop and deliver mission-critical RF, microwave components.

Quick Facts:

Interference Mitigation, Spectural Purification and Spectrum Monitoring capabilities

Our RF Microwave product portfolio comprises many multi-function integrated microwave assemblies and subsystems.

Designs and manufactures a full line of RF and microwave filters, duplexers, and subassemblies, including ceramic, lumped element, cavity, waveguide, and tunable filters.

A leader in wideband RF signals search, survey, discovery and geolocation

MPG designs and manufactures RF filters to control this cosite related problem. With its full line of digitally tunable RF filters including bandpass filters

Technical Capabilities

Spectral Purification

Spectral Purification

Microwave Products Group RF and microwave filters are designed to operate on signals in the 100’s of kilohertz to 90GHz frequency ranges. Most RF and microwave systems will include filtering on the signals transmitted or received and such filters are commonly used as building blocks for multiplexers to combine or separate multiple frequency bands. RF & Microwave spectrum management is often overlooked in the need to deploy the latest radar or wireless communications technology. Regulatory licensing requirements or the mitigation of co-site interference, and external interference can often render even the most sophisticated communications or sensing system inoperable.  MPG Custom microwave filter solutions can mitigate interference and provide spectral purification for any given system. 


Interference Mitigation

In 1994 MPG branched into the Integrated Cosite Equipment (ICE) business with the development of both an airborne and shipboard filter/amplifier cascade product. ICE integrates elements of our tunable filters to achieve enhanced performance beyond that achievable with our basic products. Both of these ICE units are still in production. Additionally, MPG has significantly expanded the breadth of ICE products, providing our customers the ability to select optimal cost-effective solutions for their interference mitigation needs. Many of our products are purchased as Commercial Item solutions, while other customers require modification to the existing products to meet their needs. In both cases, MPG provides low risk, cost-effective solutions. Our products can be found in the harshest RF environments on C4ISR (command, control, communications, computers, intelligence, surveillance, and reconnaissance) platforms and in less demanding applications in tactical radios.

Today, MPG is delivering hardware to customers around the world for a variety of applications. Our equipment is flying on airborne command posts and jet fighters for the military, and is fielded in both ground fixed and ground mobile systems. The same hardware is being used in commercial applications from radio telescopes to wireless office communications, and from industrial inspection equipment to MRI machines. Applications for our filters range from stand-alone units in a test environment to units embedded in the design of high performance communication equipment.


Spectrum Monitoring

Supports simultaneous monitoring, analysis, and recording of wideband RF data streams for extended periods of time. MPG’s systems and applications operate on a single software code base that differs across hardware platforms only by the software configuration.

When configured with a GPS-disciplined time and frequency references and networked together, teamSENTINEL sensors operate as a mesh of coherent RF sensors to support advanced RF capabilities including Theater Network-Centric Geolocation (TNG), Angle of Arrival Direction Finding (AoA DF) and Spatial Diversity signal selection (teamVIEW as well as Multiple-Input, Multiple-Output (MIMO or N-Channel) signal processing).


Our team is composed of highly-technical engineers empowered to quickly assist you in identifying a high-performance RF/microwave solutions. Whether it is a modular, tailored design or a custom, highly-integrated, multi-function assembly, we will actively engage with you to provide the best value without compromising performance. Contact our engineers today to start the collaborative process!

Featured Products & Solutions



Visualizing the RF spectrum through edge sensors with AI/ML classification, precision geolocation, and data analytical tool sets combined within intuitive user interfaces.

Learn More



The new ICE5200™ is a highly integrated, high-performance, fast-tuning Filter/Amplifier system for mitigating severe cosite interference caused by collocated RF systems on airborne, sea, and ground mobile platforms.

Learn More


Band Pass Filters

MPG offers a full line of fixed and tunable, narrowband and wideband band pass filters. Available in various topologies to meet varying frequencies, bandwidths and Q requirements. Custom, configured-to-order designs as well as rugged standard package designs for specific technologies, to reduce cost and time to market where more urgent turnaround times are required.

Learn More

Dover MPG Markets