RF limiters protect sensitive receiver components

15th July 2019
Posted By : Alex Lynn
RF limiters protect sensitive receiver components

Pasternack has expanded its line of broadband, high power coaxial limiters that are designed to help protect sensitive components in the receive chain and other microwave circuits in close proximity to high power signals. The typical applications for these RF limiters include electronic warfare, military communications, instrumentation, fibre optic communication systems, SATCOM, radar, point-to-point wireless, telecom and R&D applications.

Pasternack’s high power RF limiter line now consists of 13 models that provide low leakage power to sensitive control components in the receiver chain while offering good suppression of even-order harmonics under hard limiting. These RF limiters operate over a very wide frequency range in bands from 0.2 to 40GHz and provide low leakage power circuit protection of 10 to 18 dBm. Additionally, they exhibit high CW power handling of up to 200W peak power and a fast recovery time of ten to 100 nanoseconds.

The 50 Ohm designs use hi-rel assembly processes, incorporate complete limiting diode circuitry, and do not require any external matching components. The compact package outlines support field replaceable connectors and thru mounting holes and can be drop mounted onto a circuit board. These rugged modules operate over a guaranteed operating temperature range of -54 to +85°C and are designed to meet MIL-STD-202 environmental conditions for shock, humidity, vibration, altitude and temperature cycle. 

“Our extensive line of broadband, high power coaxial RF limiters offers our customers a broad selection of highly reliable models for use in protecting sensitive components in the receive chain and other microwave circuits. These limiters are in-stock and available for same-day shipping to satisfy urgent needs,” said Tim Galla, Active RF Components Product Manager at Pasternack. 

Pasternack’s high power coaxial limiters are ready for immediate shipment with no minimum order quantity.


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