Quantic PMI Model LM-1G18G-2W-SFF-BIAS is a low loss limiter with a P1dB bias adjust and working frequency range of 1 to 18 GHz.   Specification includes insertion loss of 2 dB maximum; input power 2 W CW / 60 dBm Peak 0.1% DC, 1 µs pulse width maximum; RF leakage 23.4 dBm typical @ 0V; and P1dB 11 dBm typical @ 0 V. This limiter is supplied in a housing 0.53" x 0.70" x 0.26" with an internal DC Block and has SMA connectors that can be used as a surface mount or connectorized component.  https://www.quanticpmi.com/product-details/lm-1g18g-2w-sff-bias