New Rectification Technique Employing Auxiliary Rectifier for Resonance Control Achieving Compact Size and High Efficiency in CMOS

This article presents the design and realization of a compact size high-efficiency complementary metal-oxide- semiconductor rectifier with resonance control technique employing the concept of parallel rectifier. The methodology involves the integration of two rectifiers, where one is main rectifier, specifically designated for rectification purposes and the other is auxiliary, serves for impedance matching, resulting in no matching at input. Furthermore, the auxiliary rectifier offers control over resonance of the proposed rectifier. The proposed design achieves more than 40% conversion efficiency at 22 dBm of input power for the broadband range from 2.4 to 3.5 GHz, with an active circuit size of $0.21~\mathrm {mm}^{2}$ .