Summary
International Symposium on Antennas and Propagation
2012
Session Number:2B1
Session:
Number:2B1-3
Waveguide Slot Antennas with Different Aperture Sizes Developed for the MMW Short Range Wireless Access Gate System
Miao Zhang, Jiro Hirokawa, Makoto Ando,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
Recently, a cloud computing system is widely expected to realize a free and high-capacity data transfer between the high-performance mobile wireless terminals and the servers. The high-speed multi-Gbps short range wireless access gate system in millimeter-wave band is under development in Japan. The communication distance between the mobile wireless terminal and the wireless access gate is relative short from tens of centimeters to several meters. Those far-field evaluation indices as represented by Friis Transmission Equation as well as the antenna gain and HPBW can not be easily applied as before. In this paper, the suitable antenna aperture size will be investigated first to enlarge the reception in a wireless access gate system. After that, the circularly-polarized waveguide slot arrays with different numbers of slots are designed for demonstration. The 2�~2, 4�~4, 8�~8 and 64�~64-element arrays are fabricated and evaluated especially from the conventional viewpoint of far-field radiation.