To keep the RF input signals experienced by low-noise amplifiers (LNAs) and receiver frontend components to safe levels, a new limiter is designed to attenuate signals above a specific threshold. Dubbed model ACLM-4805FM15, this microwave limiter covers 2 to 6 GHz. It is rated to handle continuous-wave (CW) signal levels of 10 W and peak levels of 1 kW (1 s pulse width, 0.1 percent duty cycle) over a temperature range of -55 to +85C or 20 W CW and 1 kW peak at +25C. The limiter has leakage of +12.5 dBm with a 1-W input and VSWR of 1.40:1 or less. It exhibits insertion loss of less than 1 dB while third-order intermodulation products are typically +23 dBm or better. The ACLM-4805FM15 is housed in a ceramic surface-mount package that can be hermetically sealed if specified by the customer.
Advanced Control Components, 611 Industrial Way West, Eatontown, NJ 07724; (732) 460-0212, Internet: www.advanced-control.com.
About the Author
Nancy Friedrich
RF Product Marketing Manager for Aerospace Defense, Keysight Technologies
Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.