A Robust Super-Regenerative Receiver with Optimal Detection on BER Level

This paper presents a robust super-regenerative receiver (SRR), which is insensitive to the temperature variations. A constant-alpha biasing circuit is proposed to make the start-up oscillation and start-up time of the VCO immune from temperature drifts. The prototype chip is measured in the range of −20 degrees to 90 degrees (Celsius) to verify this functionality of the constant-alpha biasing circuit. Besides, another new perspective on the detection level is proposed to derive the lowest BER. This SRR is fabricated in UMC standard
$0.18\mu\mathrm{m}$
CMOS process, and the chip area is
$1.65\text{mm}\times 1.45\text{mm}$
.