Title :
The S-band multi-stage amplifier for single-tone and time-division microwave communication and power transmission
Author :
Kawasaki, S. ; Yoshida, Sigeru ; Kobayashi, Yoshiyuki ; Noji, T. ; Ono, M. ; Moriguchi, Y. ; Furuta, S.
Author_Institution :
Inst. of Space & Astronaut. Sci., Japan Aerosp. Exploration Agency, Sagamihara, Japan
Abstract :
The multi-stage GaN amplifier with dual output power was explained for the application of microwave communication and power transmission. For the compact transmitter, single-tone and time-division operation is adopted in this study. The maximum output power of 91.8 W and the PAE around 55.4% were obtained at 2.1 GHz in the high power transmitter operation. In the low power transmitter operation, the 4Mbps symbol-rate QPSK signal was achieved under the 19.2 W with 35% PAE. By combining with a multi-stage rectifier in the receiver, the compact microwave communication and power transmission system can be realized.
Keywords :
III-V semiconductors; energy harvesting; gallium compounds; inductive power transmission; microwave power transmission; power amplifiers; quadrature phase shift keying; wide band gap semiconductors; GaN; S band multistage amplifier; compact transmitter; dual output power; efficiency 35 percent; frequency 2.1 GHz; high power transmitter operation; low power transmitter operation; multistage rectifier; power 19.2 W; power 91.8 W; power transmission; single tone microwave communication; symbol rate QPSK signal; time division microwave communication; Microwave amplifiers; Microwave circuits; Microwave communication; Power transmission; Wireless communication; Microwave power transmission; multi-stage power amplifiers; single-tone; time-division operation;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6694832
