Design of rectifier based on wideband resistance compression network

ABSTRACT

In this paper, a wideband resistance compression network (WRCN) based on the transmission line is proposed. It consists of three impedance transform networks formed by radial-line stub and shorted-stub. When the load resistance varies in a ratio of 100:1 (50 Ω to 5000 Ω), the variation ratio of input impedance can be compressed to less than 3.69:1. Then, a WRCN-based rectifier is designed and fabricated. The measured results show that the realized rectifier can operate at a frequency from 3.3 GHz to 5.2 GHz. When the input power is 10dBm, the conversion efficiency of more than 50% can be obtained. Also, for the load resistance changing in the range of 0.3–5 kΩ, the conversion efficiency is over 30% and the peak value of 55.5% appears in the case that the load resistance is 2200 Ω.

KEYWORDS:

• Radial-line stubs
• rectifier
• resistance compression network
• RF-dc conversion efficiency

Notes

1. This work was supported by the National Science Foundation of China (61771295), Excellent achievement cultivation project for Universities in Shanxi Province (2019KJ001), the National Science Foundation of Shanxi Province (201901D111025). Corresponding author: Wenmei Zhang (e-mail: [email protected]).