ECHO Microwave specializes in the design and in-house manufacturing of Suspended Substrate Stripline (SSS) Filters, engineered for broadband, low-loss, and high-Q performance up to 50 GHz.

Unlike conventional microstrip or cavity filters, our suspended substrate technology provides superior dielectric stability, uniform field distribution, and significantly lower insertion loss, making it the ideal solution for next-generation military, radar, aerospace, and satellite communication systems.

By combining advanced simulation, precision CNC-milled cavities, and connectorized designs, ECHO Microwave achieves extremely wide passbands, outstanding selectivity, and power handling up to 10 W in a compact, lightweight form factor.

In addition to bandpass, lowpass, and highpass configurations, ECHO Microwave also develops high-isolation diplexers and multiplexer assemblies that integrate multiple filter networks into a single module. These custom-engineered components enable frequency channelization, multi-band operation, and efficient system integration across complex RF front-end architectures.

With a proven frequency range from 1 GHz to 50 GHz, our filters, diplexers, and multiplexers deliver unmatched repeatability and reliability for mission-critical RF and microwave applications.