ADMEQ is primarily focused on state-of-the-art electronic components and subsystems.  Take a look at their product portfolio, and the new standard program of RF- Switches with frequency coverage from 0.1-20 GHz with a customized capability of up to - 50 GHz. Excellent switching speed.
Available in versions SPST, SP2T to SP8T.  High power versions available, 1W to 100W, as well as switch matrix and 1 to 128 throw.

If your high-reliability application demands proven MMW experience, look no further. QuinStar Technology, Inc. designs and manufactures millimeter-wave products for communication, scientific, and test applications. We excel in millimeter-wave products, microelectronic assembly, rapid prototyping, and mass customization.

MCV Ceramic Filters feature high Q - low loss filters, small size and rugged SMT design using discrete  resonators and mono block ceramic covering the frequency range from 300 MHz to 10 GHz. MCV's ceramic filter line includes band pass filter, band reject filter, low pass filter, high pass filter, duplexer, and multiplexer. High Power Ceramic Filters (20-30W continuous power) are suitable for small cell base station applications such as 4G LTE, public safety and wireless communication in 700MHz up to 5GHz.

Sainty-tech Communications Limited, (STC for short）is an ISO 9001 certified company based in Nanjing, China. Since 2006 STC provide  customers with excellent RF, Microwave products and value-added services.