Design of Dual Polarized Basestation Antenna for CELL Band Application using Parasitic Conductor

In this paper, a design of CELL band dual polarized base station antenna having air dielectric substrates has been proposed. The study of dual polarized base station antenna and their radiation properties including return loss, isolation, beam width, directivity, and radiation patterns for a single element are discussed. The antenna has a relative bandwidth of 31.7% (VSWR<1.4) with return loss of -16.5 dB at both ports. The port decoupling is better than -20 dB in the entire frequency band. The broad bandwidth is achieved by optimization of the feeding network which is implemented as an aperture coupled Microstrip feed and achieves a gain of average 7dB.