N. Imai

Novel linearizer using balanced circulators and its application to multilevel digital radio systems

N. Imai, T. Nojima, T. Murase, 1989 .

A fiber optic/millimeter-wave radio transmission link using HBT as direct photodetector and an optoelectronic upconverter

E. Suematsu, N. Imai, N. Imai, 1996 .

An All-Optical Base Station for MMW Micro-Cell Radio Using Microwave-Optical Mixing in LiNbO3 Modulators

Howard John Thomas, Nobuaki Imai, Eiichi Ogawa, 1997 .

Millimeter-wave wide-band amplifiers using multilayer MMIC technology

Nobuaki Imai, Seiichi Banba, Akira Minakawa, 1997 .