This letter describes a novel absorptive limiter for frequency-selective circuits. The proposed circuit allows the design of absorptive limiters based on a bi-state phase shifter, which is appropriate for integration into channelizing devices, such as hybrid-coupled input multiplexers. A preliminary prototype with shunt PIN diodes has been fabricated and measured to demonstrate the viability of the concept.
Collado, J. [et al.]. Absorptive limiter for frequency-selective circuits. "IEEE microwave and wireless components letters", 01 Juny 2014, vol. 24, núm. 6, p. 415-417.