RF Rectifier with Pixel-like Network and Inductive Matching Technique

IEEE Wireless Power Technology Conference and Expo (WPTCE), pp. 1–4

Abstract

This paper demonstrates an RF rectifier employing a pixel-like network and an inductive matching technique. The pixel-like network acts as an RF choke and is more compact compared to a typical λ/4 transmission line with open/short stubs. A pattern generator is developed in Python to create pixel-like networks. The main constraint for the pixel-like network used in a rectifier is to ensure dc current flow, which requires a certain overlap between pixels when generating the network. The design is fabricated on a Rogers RO4350b substrate with a total size of 2.8 cm2. Measured peak efficiency is 73.3% at 2.5 GHz with an input power of 23.5 dBm and a dc output voltage of 8 V. Measured efficiency remains above 50% from 1.88 GHz to 3.26 GHz for an input power of 22.3 dBm.

Authors 4

1. Muh‐Dey Wei Aachen Chair of High Frequency Electronics

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University,Chair of High Frequency Electronics,Aachen,Germany

2. Lukas Hüssen Aachen Chair of High Frequency Electronics

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University,Chair of High Frequency Electronics,Aachen,Germany

3. Guo-Shiang Lin

   National Chin-Yi University of Technology

   Affiliation as printed

   National Chin-Yi University of Technology,Taichung,Taiwan

4. Renato Negra Aachen Chair of High Frequency Electronics

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University,Chair of High Frequency Electronics,Aachen,Germany