Shinichi Honma

Offset Paraboloidal Reflector Antenna for Vehicular Collision Avoidance Radar

In this paper, the authors present an offset paraboloidal reflector antenna for vehicular collision avoidance radar systems. The antenna designed for use at 77GHz, has suitable gain and beam width for collision avoidance radar.

A patterning method of polarization grids on a reflector using reflector surface developing technique

This article proposes a patterning method of polarization grids on a reflector using reflector surface developing technique for gridded reflector antennas. Gridded reflector antennas have excellent cross-polarization suppression characteristics caused by their polarization grids on a reflector. The proposed grid patterning method is simple to transcribe a plane grid pattern onto a curved reflector surface, being different from conventional complicated methods such as a direct photoetching method by N/C-driven laser system. A key technology for plane pattern design to obtain a desired pattern on a curved reflector surface is described. The method is evaluated through appropriate models and is verified by a measured radiation pattern.