Yohei KONISHI


Versatile Radio Channel Sounder for Double Directional and Multi-link MIMO Channel Measurements at 11 GHz
Yohei KONISHI Yuyuan CHANG Minseok KIM Jun-ichi TAKADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/10/01
Vol. E97-C  No. 10  pp. 994-1004
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Microwave and Millimeter-wave Technologies)
Category: 
Keyword: 
channel soundingmultiple-input-multiple-output (MIMO) systemmulti-linkmicrowave propagation
 Summary | Full Text:PDF(4.1MB)

Automatic IQ Imbalance Compensation Technique for Quadrature Modulator by Single-Tone Testing
Minseok KIM Yohei KONISHI Jun-ichi TAKADA Boxin GAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1864-1868
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
quadrature modulatorIQ imbalanceimage distortionsteepest descentspectrum analyzer
 Summary | Full Text:PDF(259.8KB)