Narda Broadband RF Limiters Serve Defense Systems from 1 to 18 GHz
NY – September 2, 2010 -- Narda, an L-3 Communications (NYSE: LLL) company, today introduced the LIM Series of
broadband PIN diode-based RF limiters designed for air, ground, or sea-based defense applications. They handle
high input power levels, have fast recovery times, and are available for drop-in mounting with removable
RF limiters are important elements in the receive section of electronic warfare, electronic
countermeasures, and other systems, where they attenuate signals whose strength is above a specific point,
protecting sensitive components such as low-noise amplifiers and other components from damage or destruction.
The broadband LIM Series limiters include the LIM-101, which covers 1 to 18 GHz, has flat leakage of 100 mW, a
recovery time of 200 ns, and handles an RF input power of 2 W CW and 150 W peak (1 µs pulse width, 1% duty cycle),
and an operating temperature range of -55 to +95 C. The LIM-201 and LIM-301 cover 2 to 18 GHz, have flat leakage
of 150 mW or less, a recovery time of 100 ns and 200 ns respectively, handle an RF input power of 3 W CW and 500 W
peak (1 µs pulse width, 0.1% duty cycle), and operate over a temperature range of -30 to +85 C. Maximum VSWR of
all models is less than 2:1 at any frequency, connectors are SMA female and can be removed, and dimensions are
25.4 mm x 16.5 mm x 7.9 mm.
All three RF limiters meet military specifications for humidity, shock,
vibration, temperature, and altitude. They are available as single-function devices or in integrated assemblies
(IMA’s) that include switches, amplifiers, attenuators, filters, and other microwave components.
Phone: (631) 231-1700
About Narda Microwave-East
Narda Microwave-East is a division of L-3 Communications Company, a
$14 billion electronics manufacturer
serving the military and commercial communication markets. For more than 50 years, Narda has developed and
manufactured state-of-the-art RF and microwave components, microwave integrated circuits (MICs), multi-function
assemblies, and subsystems in the frequency range from DC to 60 GHz for both commercial and military applications.
Narda is also the world leader in RF safety products, and a leading manufacturer of fiber optic modulator drivers
and oscillators for OC-192 and OC-768 applications. Narda maintains the world's largest inventory of RF and
microwave components, many available from stock.
About L-3 Communications
Headquartered in New York City, L-3 Communications is a
leading provider of Intelligence, Surveillance and Reconnaissance (ISR) systems, secure communications systems,
aircraft modernization, training, and government services. The company is a leading merchant supplier of a broad
array of high technology products, including guidance and navigation, sensors, scanners, fuzes, data links,
propulsion systems, simulators, avionics, electro optics, satellite communications, electrical power equipment,
encryption, intelligence systems, antennas and microwave components. L-3 also supports a variety of Homeland
Security initiatives with products and services. Its customers include the Department of Defense, Department of
Homeland Security, selected U.S. Government intelligence agencies and aerospace prime contractors.
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