28 GHz band wireless power transfer experiments with a GaAs rectenna MMIC with an inductive high impedance patch antenna
- Resource Type
- Conference
- Authors
- Hirai, Tsukasa; Itoh, Takumi; Hirose, Yuya; Sakai, Naoki; Noguchi, Keisuke; Itoh, Kenji; Hasegawa, Naoki; Hirakawa, Takashi; Nakamoto, Yuta; Ohta, Yoshichika
- Source
- 2022 Asia-Pacific Microwave Conference (APMC) Microwave Conference (APMC), 2022 Asia-Pacific. :731-733 Nov, 2022
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Phased arrays
Microwave antennas
Voltage measurement
Rectennas
Power supplies
Patch antennas
Gallium arsenide
Rectenna
WPT
Patch antenna
Rectifier
GaAs
- Language
As one of additional functions in the beyond-5 th generation (B5G) mobile communication system, the wireless power transfer (WPT) is an important candidate. It will be applied to power supply for batteryless Internet of Things (loT) sensors. In this report, 28 GHz band WPT experiments between the active phased array antenna (APAA) with EIRP of 74 dBm and the GaAs rectenna MMIC is demonstrated. The rectenna with an inductive high impedance patch antenna and a double voltage rectifier is fabricated monolithically on the GaAs chip with the size of 1.8 mm square. Measured output voltage of 0.19 V and output DC power of 8.6 μW are obtained at distance of 5 m from the APAA.