A Miniature Packaged Rectenna for Wireless Power Transmission and Data Telemetry

Abstract

Embedded wireless sensors are becoming crucial for many safety critical applications. Sensor batteries must be charged as needed to support high data rate communications. A miniature packaged circularly polarized rectenna is proposed. With the help of an integrated band-reject filter the proposed rectenna achieves a conversion efficiency of 74% and suppresses the second harmonic emission at 11 GHz by more than 50 dB.