Akihito HIRAI


S-to-X Band 360-Degree RF Phase Detector IC Consisting of Symmetrical Mixers and Tunable Low-Pass Filters
Akihito HIRAI Kazutomi MORI Masaomi TSURU Mitsuhiro SHIMOZAWA 
Publication:   
Publication Date: 2021/10/01
Vol. E104-C  No. 10  pp. 559-567
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
RF phase detectorsymmetrical mixertunable low-pass filterSiGe-BiCMOS integrated circuits
 Summary | Full Text:PDF

A 0.3-to-5.5 GHz Digital Frequency Discriminator IC with Time to Digital Converter and Edge Counter for Instantaneous Frequency Measurement
Akihito HIRAI Koji TSUTSUMI Hideyuki NAKAMIZO Eiji TANIGUCHI Kenichi TAJIMA Kazutomi MORI Masaomi TSURU Mitsuhiro SHIMOZAWA 
Publication:   
Publication Date: 2019/07/01
Vol. E102-C  No. 7  pp. 547-557
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuits and Their Application Technologies)
Category: 
Keyword: 
digital frequency discriminator (DFD)instantaneous frequency measurement (IFM)time-to-digital converter (TDC)multiphase clock
 Summary | Full Text:PDF