The MPG brand has been actively present on space missions since 1970, delivering unfailing reliability and performance in RF interference mitigation.


Electronic components operating in space require extra consideration to meet the harsh conditions of the environment. Limited opportunities for maintenance and upkeep also demand added reliability. With more than 50 years of experience supporting some of the most widely recognized space missions, the MPG line of filters and switches is built on extended experience and backed by proven performance across mission-critical space applications.


MPG’s space heritage is backed by over 50 years of experience as well as the unmatched precision and knowledge of our space-dedicated engineering team. Our commitment and expertise have made us one of the premier providers of RF interference products for decades of space programs, including the Apollo 17 lunar sounder experiment, Centaur shuttle, Delta Launch, and most recently, the Webb Telescope.

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Quick Facts

MPG’s broad range of Filters, Switches (Coaxial and Waveguide), IMUX devices, matrices and integrated Solutions have been featured in more than 150 different space programs, using 200 product designs.

Trusted Space Qualified Coaxial & Waveguide Switch provider since 1970

Top Filter supplier to the Apollo 17 mission

NASA and ESA approved products

Domestic and international programs

Commercial and military applications

Dedicated Space team of experts available

Space Technologies

MPG supports manufacturers with a full line of interference mitigation products, designed specifically to withstand the rigors of space, including:

  • Bandpass, Lowpass, Highpass, Bandstop Filters
  • Dielectric Resonator Filters
  • Waveguide and Coaxial Filters
  • Low insertion loss, high reliability switches and switch matrices
  • IMUX devices
  • Integrated assemblies

Facility & Capabilities


  • In-flight failure free record in over 100 different space programs, using 150 different switching product designs
  • Dedicated space team to design and manufacture switch components
  • Quality Management System (QMS) evolved from MIL-Q-9858A & MIL-I-45208
  • DOD classified certifications
  • AS9100 and ISO-9001 Certified through BSI Management Systems
  • IPC J-STD-001, IPC J-STD-001S, IPC J-STD-610 Class 3, NASA-STD 8739.3 quality certifications/soldering and workmanship standards

Manufacturing Facility & Test Equipment

  • State-of-the-art plating facility
  • High precision mechanical manufacturing
  • Vector network analyzers
  • Synthesized sources
  • Noise figure measuring equipment
  • Passive inter-modulation (PIM) test stands
  • Thermal/vacuum changes
  • RF power sources
  • Shock and vibration stations
  • CNC machining stations networked with CAD/CAM computing stations
  • Two Class 7 Clean Rooms with humidity and temperature-controlled environment
  • Prohibited materials and screening chamber
  • Three full time T-VAC test stations
  • AutoCAD
  • SolidWorks
  • HFSS (High Frequency Structural Simulator)
  • Cosmos FEA (validation and failure mode simulation)


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


Fixed Cavity Filters

While other manufacturers provide off-the-shelf bandpass and band reject products, our experienced engineers work collaboratively with customers to design microwave Cavity Filters tailored to individual manufacturing specifications, enhancing parameters such as insertion loss and power handling capacity through specialized package configurations. VHF and UHF in bandpass and band reject designs.

Frequency Range: 0.03 to 40 GHz

Bandwidth: .2% to 50%

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Waveguide Switches

Waveguide Switches are designed to route extremely high power signals over a narrow bandwidth at low to high frequencies, making them highly applicable to space applications. To meet this market demand, MPG's Dow-Key expanded its product line and engineering capabilities in 1993, with the acquisition of the Transco Space Qualified Products, augmenting our own industry heritage in Hi-Rel Space programs with an extended line of Waveguide Switching solutions

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Up Converter

MPG ensures reliable signal conversion, with fully integrated Up Converter assemblies.

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