Journal
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume 32, Issue 6, Pages 595-598Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWC.2022.3143844
Keywords
Microwave circuits; Wideband; Microwave communication; Frequency conversion; Wireless communication; Radio frequency; Wireless sensor networks; Microwave measurement; microwave power transmission; microwave rectifier; wideband circuit
Categories
Funding
- JST Fusion Oriented REsearch for disruptive Science and Technology (FOREST) [JPMJFR205V]
- Murata Science Foundation
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This letter proposes a wideband and compact microwave rectifier design that uses the conditions for flat frequency characteristics of RF-dc conversion efficiency. The use of lumped element design and multistage matching method resulted in a wideband characteristic.
In this letter, a wideband and compact microwave rectifier using the conditions for flat frequency characteristics of RF-dc conversion efficiency is proposed. A lumped element design was used to minimize the size of the rectifier. The multistage matching method was effective in reducing the Q value of the circuit, resulting in the wideband characteristic. Three capacitors and four inductors were used for matching. In a measurement result, RF-dc conversion efficiency exceeded 50% in the frequency range from 0.39 to 2.90 GHz, which corresponds with a fractional bandwidth of 152.6%.
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