Communications

Broadband limiters protect sensitive RF receivers

18th August 2015
Nat Bowers
0
Datasheets

Helping to protect sensitive RF receivers and components such as LNAs that are in close proximity to high power signals, a family of broadband, high power limiters has been unveiled by Fairview Microwave. The seven limiters operate over broad frequencies ranging from 0.5 to 40GHz, depending on the model, exhibit high CW power handling up to 200WPP and fast recovery times from 10 to 100ns.

Featuring limiting thresholds of 3 to 10dBm and low leakage power of 10 to 15dBm, the high power, broadband limiters are constructed with high-rel, ruggedised packages that are designed to meet MIL-STD-202 environmental conditions for humidity, shock, vibration, altitude and temperature cycle. They are guaranteed to operate over temperature ranges from -54 to +85°C. The 50Ω hybrid designs utilise limiting diode circuitry and do not require any external matching components.

Brian McCutcheon, Vice President and General Manager, Fairview Microwave, commented: "Our new portfolio of high power RF limiters provides designers and engineers the components needed to protect their sensitive RF receiver components from high power signals that could result in irreparable damage to the system. These high power limiters offer industry-leading performance and are well suited for applications such as electronic warfare, instrumentation, fibre optic comms systems, radar, SATCOM, point-to-point radio, telecomms and R&D."

Fairview’s high power coaxial limiters are now in-stock and available to ship today.

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