Bree Engineering

  • Custom RF Filters, Multiplexers, Filter Banks and other related types of components in the frequency range of 0.1 MHz to 40 GHz. Designs include Chebychev, Bessel, Butterworth, Gaussian, Transitional, Elliptic-Function and Pseudo-Elliptic-Function filters. In addition to Lumped Element designs, Bree Engineering also produces Cavity designs (Combline or Interdigital) and Ceramic Resonator designs

CTT Inc.

  • Solid state RF and microwave GaAs FET LNAs
  • Limiting power amplifiers and subassemblies,
  • Frequency range .5 to 40GHz with power output to 100W
  • Military and commercial applications.

JFW Industries, Inc.

  • Designs and Manufactures RF components and application specific test systems, including attenuators, RF switches and specialized test systems for the telecommunications, OEM test equipment, medical, automotive, defense and automated test systems market.


  • A global leader of millimeter wave products and microwave, technology, components and assemblies. From custom designed systems to volume order production in the 5GHz to 325GHz spectrum. Markets are Radar 7& Scanning, Aerospace, 5G Telecom, Automotive, Defense, $ Medical Research.”


United Monolithic Semiconductor designs, produces and markets leading edge GaAs and GaN RF and millimeter wave components and solutions for:

  • Telecom infrastructure
  • Space
  • Defense and Security
  • Automotive Radar
  • Industrial sensors

Coleman Microwave

  • Designs and manufactures all types of microwave filters from .1 to 40 GHz. In addition to a standard product line, Coleman specializes in unique designs to address our customer’s most stringent specifications. Products are engineered to meet demanding military applications and are offered in coaxial and waveguide modes of operation. Filter types include lowpass, highpass, band reject and bandpass both tunable and fixed tuned in addition to Weather Radar Assemblies and Components

Diamond Roltran

  • DIAMOND-ROLTRAN, LLC Maintenance-free slip ring alternative for mission-critical military and aerospace applications where long life, maintenance-free, low electrical resistance, low torque and high shock tolerance are important performance requirements”.

Efficient Power Conversion (EPC)

  • EPC is the leading provider of gallium nitride (GaN)-based power management technology and is doing more than just improving efficiency of electrical power. It is also enabling new, life-changing applications that didn’t exist five years ago. From  wireless power  and   autonomous vehicles to  high-speed mobile communications,  low cost satellites , Class D Audio and transformations in  medical care , among many others, GaN is becoming the preferred technology for progressive companies that are eager to remain at the forefront of their industries