Kazuaki KUNIHIRO


High Efficiency Power Amplifiers for Mobile Base Stations: Recent Trends and Future Prospects for 5G
Kazuaki KUNIHIRO Shinichi HORI Tomoya KANEKO 
Publication:   
Publication Date: 2018/02/01
Vol. E101-A  No. 2  pp. 374-384
Type of Manuscript:  INVITED PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
power amplifierDohertyenvelope trackingoutphasingdigital transmitter5G
 Summary | Full Text:PDF(2MB)

OFDM Error Vector Magnitude Distortion Analysis
Shingo YAMANOUCHI Kazuaki KUNIHIRO Hikaru HIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2006/12/01
Vol. E89-C  No. 12  pp. 1836-1842
Type of Manuscript:  Special Section PAPER (Special Section on Emerging Microwave Techniques)
Category: Active Circuits/Devices/Monolithic Microwave Integrated Circuits
Keyword: 
power amplifiers (PAs)nonlinear distortionerror vector magnitude (EVM)wireless LANorthogonal frequency-division multiplexing (OFDM)
 Summary | Full Text:PDF(907KB)

Two-Dimensional Cyclic Bias Device Simulator and Its Application to GaAs HJFET Pulse Pattern Effect Analysis
Yuji TAKAHASHI Kazuaki KUNIHIRO Yasuo OHNO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/06/25
Vol. E82-C  No. 6  pp. 917-923
Type of Manuscript:  Special Section PAPER (Special Issue on TCAD for Semiconductor Industries)
Category: 
Keyword: 
device simulationcyclic bias simulatorpulse pattern effectdeep levelGaAs HJFET
 Summary | Full Text:PDF(796KB)