PIN Limiters Reach 18 GHz

The LIM series of PIN diode RF limiters from Narda Microwave, an L-3 Communications company, handles high input power levels with fast recovery times over broad bandwidths. They are ideal for air, ground, or sea-based defense applications. The LIM series includes model LIM-101 for use from 1 to 18 GHz. It has flat leakage of 100 mW with 200-ns recover time and can handle 2 W CW and 150 W peak power (with a 1-microsecond pulse at 1-percent duty cycle). The LIM-101 is designed for operating temperatures from -55 to +95 deg. C. The models LIM-201 and LIM-301 both operate from 2 to 18 GHz with flat leakage of 150 mW or less and recovery times of 100 and 200 ns, respectively. They can handle 3 W CW and 500 W peak power (with a 1-microsecond pulse at 0.1-percent duty cycle). Models LIM-201 and LIM-301 are both designed for operating temperatures from -30 to +85 deg. C. All three limiters are supplied with removable connectors for drop-in mounting. They measure 25.4 x 16.5 x 7.9 mm. The RF limiters meet military specifications for humidity, shock, vibration, temperature, and altitude. They are available as single-function devices or in integrated assemblies (IMAs) that include switches, amplifiers, attenuators, filters, and other microwave components.

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