TY - JOUR
T1 - A Decoupling Network for Resonant and Non-Resonant Sub-1 GHz MIMO Mobile Terminal Antennas with Improved Compactness and Efficiency
AU - Cheor, Wai Loon
AU - Al-Hadi, Azremi Abdullah
AU - Soh, Ping Jack
AU - Jamlos, Mohd Faizal
AU - Elshirkasi, Ahmed Mohamed
AU - Chen, Xiaoming
AU - Akkaraekthalin, Prayoot
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2021
Y1 - 2021
N2 - In this work, the design procedure of a new decoupling network for different antennas is presented for mobile terminals operating in the Sub-1 GHz band (from 0.698 to 0.96 GHz). To evaluate its applicability for different resonant and non-resonant antenna types, two antenna elements have been chosen to be decoupled using the proposed decoupling network: a printed inverted-F antenna and a capacitive coupling element antenna. Simulation and measurement results showed that the decoupling network offer promising improvements in terms of impedance matching, port isolation, envelope correlation coefficient (ECC), and total efficiency. In addition, the antennas are also investigated with the ergodic capacity, multiplexing efficiency, gain, and diversity gain (both calculated using maximal ratio combining technique). Due to the contribution of the decoupling network, the ECC of both types of multiple antennas are less than 0.3, with a 30 % improvement in total efficiency and an inter-element spacing miniaturization of 34 %.
AB - In this work, the design procedure of a new decoupling network for different antennas is presented for mobile terminals operating in the Sub-1 GHz band (from 0.698 to 0.96 GHz). To evaluate its applicability for different resonant and non-resonant antenna types, two antenna elements have been chosen to be decoupled using the proposed decoupling network: a printed inverted-F antenna and a capacitive coupling element antenna. Simulation and measurement results showed that the decoupling network offer promising improvements in terms of impedance matching, port isolation, envelope correlation coefficient (ECC), and total efficiency. In addition, the antennas are also investigated with the ergodic capacity, multiplexing efficiency, gain, and diversity gain (both calculated using maximal ratio combining technique). Due to the contribution of the decoupling network, the ECC of both types of multiple antennas are less than 0.3, with a 30 % improvement in total efficiency and an inter-element spacing miniaturization of 34 %.
KW - Decoupling networks
KW - low frequency
KW - mobile terminal antennas
KW - multi-input multi-output
KW - mutual coupling
UR - https://www.scopus.com/pages/publications/85107172247
U2 - 10.1109/ACCESS.2021.3073835
DO - 10.1109/ACCESS.2021.3073835
M3 - 文章
AN - SCOPUS:85107172247
SN - 2169-3536
VL - 9
SP - 59475
EP - 59485
JO - IEEE Access
JF - IEEE Access
M1 - 9405996
ER -