提出了一種新型的、具有限幅自保護功能的新型高溫超導高性能接收機前端系統方案。采用將高溫超導限幅濾波器前置于低噪放進行混合集成，利用高溫超導限幅濾波器優異的濾波和限幅特性實現同時具有高靈敏度和自保護功能的接收機前端。實驗結果表明該濾波器可以有效地保護后端的低噪放不被燒毀或阻塞。采用超導-常規電路混合集成工藝研制而成的限幅自保護高溫超導接收機前端具有優異的接收靈敏度，總噪聲系數小于0.7 dB。

A novel High Temperature Superconducting (HTS) receiver front-end with limiting and self- protective abilities is proposed aiming at resolving the problems in mobile communication such as lack of frequency resources and regular channel block and so on. A novel HTS microwave filter with the function of limi-filter is adopted and located before low noise amplifier. Based on the excellent filtering and limiting abilities of HTS limi-filter, the receiver front-end with limiting and self-protective abilities is realized. Experimental results show that when input power is ?10 dBm, the insertion loss of HTS limi-filter is 0.2 dB and the Standing Wave Ratio (SWR) is less than 1.4; when input power is 15 dBm, the limiting depth of signal is 10 dB. The SWR and Noise Figure (NF) of HTS receiver front-end manufactured by mixed technology is less than 0.7 dB.