Ultra Wideband Receiver Protection Limiter Using 0.13m pHEMT Technology

This paper describes design and development of an ultra-wideband receiver protection limiter realized using 0.13um pHEMT technology. The limiter achieves very low insertion loss of > 1dB, wide band match S11/S22 > 10dB) and high power handling of 33dBm (2W) over a very high bandwidth of 0.5 to 18GHz. The flat leakage power of the designed limiter is 20dBm. The chip is realized in a very compact size of 1.6×0.71mm.