Design of an Industrial, Scientific and Medical Band On-Off Keying Receiver for Body Sensor Network Application

In this paper a new architecture of a super-regenerative receiver (SRR) with pulse-width digitization (PWD) is proposed. The SRR is designed operating at the 5.8 GHz Industrial Scientific Medical (ISM) band using 0.18-μm CMOS process. The proposed SRR architecture uses a quenched oscillator (QOSC) to reduce the required LNA's gain and can achieve low power consumption. The technology of PWD employs the principle of quantization to convert the pulse-width (PW) into digitally binary level and achieves fine resolution, which allows the SRR to support the OOK (On-Off Keying) demodulation. The whole receiver draws 1.77 mA from a 1 V supply. With a 3 Mbps data rate, the receiver achieves an energy efficiency of 0.89 nJ/bit and −70 dBm