Dual frequency resonant base station antennas for PDC systems in Japan
Dual frequency resonant base station antennas for PDC systems in Japan
复制标题
日本PDC系统双频谐振基站天线
DOI：
10.1109/aps.1999.789202
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Y. Ebine
中科院分区：
文献类型：
--
作者：
Y. Ebine
蜂窝移动通信系统正在世界各地得到成功的发展。为配合流动电话用户数目的增加，当局现正采用多个系统接驳不同的频段。1993年，PDC(个人数字蜂窝)系统在日本开始在800 MHz和1500 MHz频段运行。日本NTTDoCoMo的PDC系统也使用双频段。因此，PDC系统中使用的基站天线必须是双频谐振的，以降低天线所需的成本和空间。本文介绍了一种商用双频谐振式基站天线和一种垂直面上遥控波束倾斜系统的工作机构。
Cellular mobile communication systems are being successfully developed all over the world. To accommodate the increase in the number of mobile phone subscribers, multiple systems accessing different frequency bands are being employed. In 1993, PDC (Personal Digital Cellular) systems started operation in the frequency bands of 800 MHz and 1500 MHz in Japan. The PDC systems of NTTDoCoMo in Japan also use dual frequency bands. Accordingly, the base station antennas used in the PDC system must be dual frequency resonant to reduce the cost and space required for the antenna. This paper presents a commercial dual frequency resonant base station antenna and an operation mechanism for a remote controlled beam tilting system in the vertical plane.