Open AccessFour‐element quad‐band multiple‐input–multiple‐output antenna employing split‐ring resonator and inter‐digital capacitor
Author(s) -
Sarkar Debdeep,
Singh Aditya,
Saurav Kushmanda,
Srivastava Kumar Vaibhav
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.2015.0189
Subject(s) - electronic engineering , mimo , monopole antenna , antenna (radio) , engineering , radiation pattern , electrical engineering , antenna measurement , computer science , beamforming
In this study, a novel four‐element multiple‐input–multiple‐output (MIMO) antenna having quad‐band characteristics is proposed. A coplanar waveguide‐fed monopole is loaded with a split‐ring resonator and an inter‐digital capacitor to achieve miniaturisation and quad‐band operation. These quad‐band elements are arranged properly to implement a four‐element MIMO configuration which provides both spatial and pattern diversities. The achieved isolation performance is better than 20 dB. Measurement results confirm that the proposed MIMO antenna operates at 1.95, 2.39, 2.64 and 3.27 GHz with impedance bandwidths of 2.66, 6.57, 8.8 and 4.09%, respectively. The proposed antenna exhibits quasi‐monopolar radiation pattern and measured envelope correlation coefficient <0.01 is obtained in all the operating bands. The proposed antenna can be useful for MIMO applications in global system of mobile/Bluetooth/wireless local area network/worldwide interoperability for microwave access operating bands.