Polarisation diversity cavity back reconfigurable array antenna for C-band application


Karamzadeh S., RAFII V., Saygin H., Kartal M.

IET MICROWAVES ANTENNAS & PROPAGATION, cilt.10, ss.955-960, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 10 Konu: 9
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1049/iet-map.2015.0733
  • Dergi Adı: IET MICROWAVES ANTENNAS & PROPAGATION
  • Sayfa Sayıları: ss.955-960

Özet

A new circularly polarised broadband multiple-input-multiple-output antenna array designed for wireless communication in C-band is presented. Some reconfigurable circularly polarised antenna designs based on the polarisation diversity technique have been previously reported. However, most of such designs have the disadvantages of an increased antenna size, reduced gain and decreased axial ratio (AR) bandwidth (BW). The proposed antenna in this work combines a low profile cylindrical cavity back, a parasitic patch and a reconfigurable antenna in a novel structure in order to increase the impedance, 3 dB ARBWs and the gain. Another important feature of the antenna is its polarisation diversity capability by employing PIN diodes in a broadband feed network composed of 90 degrees and 180 degrees couplers, a crossover and delay lines.