Miniaturization Smart Antenna Array Design for TD-SCDMA System

Hao Honggang (School of Optical and Electronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China)
Hu Wenshuai (School of Optical and Electronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China)
Ruan Wei (School of Optical and Electronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China)
Chen Wei (School of Optical and Electronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 12, No 2: February 2014

In view of the development for TD-SCDMA communication system and combine with the miniaturization technology of smart antenna, by using balun feeding structure and consist of splitters and neural networks,  this paper  proposed a four units of dual polarized and a eight units of +45o/-45o polarized antenna array which on the basis of printed dipole antenna. The simulation results show that the isolation of dual-polarized unit between two ports is greater than -26dB, the isolation of 4-unit dual-polarized antenna array between dipole ports are less than -20dB and the 8-unit is less than -18dB. The polarization characteristics and isolation parameter of the proposed antenna has meets the demands of practical applications in the bands of TD-SCDMA communication system and its supplement bands. DOI : http://dx.doi.org/10.11591/telkomnika.v12i2.3752