Compact High-Efficient 2.4/5.8 GHz Concurrent Dualband Rectifier using Tapered Microstrip Lines

2022 Wireless Power Week (WPW), pp. 392–395

Abstract

In this paper a concurrent dualband rectifier is presented. The design concept is based on the inductive matching technique to reach concurrent dualband matching. Optimum inductance is firstly estimated for each individual band and a network, used to generate the optimum inductance at each frequency, is synthesised. A prototype is designed, implemented, and measured. It employs two tapered microstrip lines to perform the input matching as an example. Measured peak efficiency is 78.14% at 2.4 GHz and 76.3% at 5.8 GHz, respectively. The measured reflection coefficient is below -15dB at 2.4 GHz and -26dB at 5.8 GHz. The prototype demonstrates good efficiencies for both operation bands and furthermore, the fabricated PCB size is only 28 mm × 28 mm. To the best of the authors’ knowledge, this prototype achieves the highest efficiencies among 2.4 GHz/5.8 GHz concurrent dualband designs to date due to the proposed compact matching technique.

Authors 3

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

   Chair of High Frequency Electronics, RWTH Aachen University, 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

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

3. Renato Negra Aachen Chair of High Frequency Electronics

   RWTH Aachen University

   Affiliation as printed

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

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