Open AccessPolarisation diverse multiple input–multiple output antenna with enhanced isolation
Author(s) -
Sarma Aswathy K.,
Arun Henridass,
Kanagasabai Malathi,
Velan Sangeetha,
Raviteja Chinnambeti,
Alsath M. Gulam Nabi
Publication year - 2015
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.2015.0040
Subject(s) - bandwidth (computing) , ranging , monopole antenna , mimo , physics , diversity gain , resonator , acoustics , electronic engineering , optics , computer science , electrical engineering , antenna (radio) , engineering , telecommunications , beamforming
In this article, two‐element monopole multiple input–multiple output (MIMO) antenna with polarisation diversity for 4G and other applications has been presented. The designed antenna covers 16% (1701–2001 MHz) of bandwidth around the design frequency (1850 MHz) which includes both DCS‐1800 and DCS‐1900 bands. The two antennas are placed orthogonally and symmetrically with edge‐to‐edge spacing of 5.5 mm ( λ 0 /30). With the placement of interconnected swastika‐shaped resonator between the two monopole antennas, there is an isolation enhancement of 60 dB thus reducing the envelope correlation coefficient value ranging from 0.016 to 6.12 × 10 −10 and improving the diversity gain ranging from 9.9 to 10 dB within the −10 dB bandwidth. A prototype has been fabricated and validated using measurements.