Always-on Power Limiter Protects X-band Receivers

The RFuW Engineering model RFLM-802123QC-291 limiter module offers high power CW and peak power protection for X-band receivers (8.7 to 10.7 GHz).

RFMW announces design and sales support for a high power, SMT RF limiter. The RFuW Engineering model RFLM-802123QC-291, silicon, PIN-Diode limiter module offers both high power CW and peak power protection for X-band applications (8.7 to 10.7 GHz). Capable of handling average power up to 80 Watts (49 dBm) and pulsed peak power up to 200 Watts (53 dBm at pulse width = 40 usec, duty cycle = 5%), the RFLM-802123QC-291 maintains low flat leakage to less than 20 dBm (max), and reduces spike leakage to less than 0.5 ergs. Recovery time is <1 uSec. The combination of high peak power handling and fast recovery time is mandatory for mission-critical applications. RF performance is exceptional with insertion loss of less than 1.5 dB. This quasi-active limiter requires no external control lines or power supply connections offering “always on” protection. Offered in a 9 x 6 x 2.5 mm, ceramic surface mount package.


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RFMW is the premier pure play technical distributor of RF & Microwave semiconductors, connectors, and components for our customers and suppliers by providing component, value add, and design solutions through a focused technical sales and marketing organization.

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