Open AccessDual‐polarised broad‐band array antenna with suspended plates for base stations
Author(s) -
Rezvani MirHamed,
Mohammadi Pejman
Publication year - 2019
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2018.5093
Subject(s) - return loss , isolator , optics , antenna (radio) , bandwidth (computing) , physics , materials science , acoustics , electrical engineering , engineering , telecommunications
A dual‐polarised broad‐band array antenna with high gain is presented for base transceiver station applications. The structure of the proposed antenna consists of four radiating elements and L‐shaped feed lines. Each radiating element includes two suspended copper plates. The electromagnetic waves have been coupled to radiating elements through feed lines. The ports’ isolation is obtained using a cubic isolator between two L‐shaped feed lines. The high gain of the proposed antenna is obtained using the sum of four elements placed at a specified distance from each other. A prototype of the proposed antenna is fabricated on a flame retardant‐4 substrate. Through experiments carried out within the frequency range of 1.6–2.3 GHz, the bandwidth, return loss, isolation between ports, and the gain of this prototype are obtained to be 66%, <−10 dB, better than −15 dB, and almost 11 dBi, respectively. In addition, within the frequency range of 3.4–3.7 GHz, the values of the same parameters are obtained to be 8.4%, <−10 dB, better than −15 dB, and almost 5.8 dBi, respectively.