3H Communication Systems

3H Communication Systems is a wireless infrastructure and microwave company in Irvine, California. It designs and makes RF and microwave filters and other front-end products.

The company is certified to AS9100 and ISO 9001:2015. It has decades of expertise in RF filters. It offers filters and frequency conditioning products from DC to 50 GHz. Its core ideas are to design quality in and to design problems out. It works with customers to reach the best mix of performance and price.

3H serves six markets. In defense, it works under US government security clearances with first and second tier defense contractors. In telecom, it makes low PIM and high power products for 2G, 3G, 4G and 5G. Its fire and safety products help first responders communicate wirelessly with little interference. Its automotive filters help control interference in collision avoidance systems. For air and space, the products are designed for harsh space conditions, including altitude and temperature effects. For medical, small, light, low-loss filters suit battery-powered devices.

Military applications include radar transmitters and receivers, electronic warfare, electronic countermeasures, signals intelligence, unmanned aerial vehicles, radar warning receivers, weapons targeting systems, missile guidance and military communications. Air traffic control is also listed. Commercial uses include cellular base stations, distributed antenna systems, repeaters, GPS, Wi-Fi, small cells, broadcast and cable TV.

The product range covers cavity, lumped component, ceramic and printed filter types, plus switch filter banks. Other technologies include microstrip, strip line, suspended substrate and multi-function assemblies. Ceramic filters cover 200 MHz to 6000 MHz and handle up to 50 watts. Lumped component filters cover 5 MHz to 10 GHz. Products come connectorized or as surface mount parts, and many ship on tape and reel. Low profile packages start under 0.08 inch high.

3H uses software to model electrical performance under extreme power and environmental conditions. This cuts prototype time and allows quick delivery of custom products. All passive products carry a 5 year warranty.

Services

• RF and microwave filters
• Cavity filters
• Ceramic filters
• Lumped component filters
• Printed filters
• Switch filter banks
• Low PIM high power filters
• Duplexers and combiners
• Custom filter design
• Multi-function assemblies