A Four-Element Linear Dielectric Resonator Antenna Array for Beamforming Applications With Compensation of Mutual Coupling
Open Access
- 11 October 2016
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Access
- Vol. 4, 6427-6437
- https://doi.org/10.1109/access.2016.2614334
Abstract
A four-element linear dielectric resonator antenna array for beamforming applications with mutual coupling compensation is proposed for long term evolution band 40 (2.3 GHz). The effect of mutual coupling on the array beamforming pattern has been studied for the inter-element spacing of $0.32\lambda $ (wavelength), when the main beam is scanned in targeted directions with nulls placed toward unintended directions. Two mutual compensation methods, such as open-circuit voltage method and linear pattern correction method, are applied to compute mutual coupling matrices, which have been used to compute the compensated (coupling free) array elements weights to give the desired beamforming patterns. By applying the compensated complex feed coefficients, the various corrected beamforming patterns have been presented. It has been shown that the array element complex weights computed using the linear pattern correction method is more effective in compensating the effects of mutual coupling than open-circuit voltage method.
Keywords
Funding Information
- Ministry of Higher Education (FRGS vote 4F283, 4F733)
- Research University Grant (votes 05H34, 00G36, 05H62, 04H36, 13H26)
- Higher Centre of excellence Grant (vote 4J220)
This publication has 31 references indexed in Scilit:
- 4G/5G Multiple Antennas for Future Multi-Mode Smartphone ApplicationsIEEE Access, 2016
- Radiation Pattern Correction in Mutually Coupled Antenna Arrays Using Parametric Assimilation TechniqueIEEE Transactions on Antennas and Propagation, 2016
- Switched beam dielectric resonator antenna array with six reconfigurable radiation patternsInternational Journal of RF and Microwave Computer-Aided Engineering, 2016
- Steerable Dielectric Resonator Phased-Array Antenna Based on Inkjet-Printed Tunable Phase Shifter With BST Metal-Insulator-Metal VaractorsIEEE Antennas and Wireless Propagation Letters, 2015
- Mutual Coupling Calibration for Microstrip Antenna Arrays via Element Pattern Reconstruction MethodIEEE Antennas and Wireless Propagation Letters, 2013
- Comparative study on the mutual coupling between different sized cylindrical dielectric resonators antennas and circular microstrip patch antennasIEEE Transactions on Antennas and Propagation, 2005
- The effects of mutual coupling using a linear array of thin dipoles of finite lengthPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Multilinear array manifold interpolationIEEE Transactions on Signal Processing, 1992
- Direction finding in the presence of mutual couplingIEEE Transactions on Antennas and Propagation, 1991
- Effect of mutual coupling on the performance of adaptive arraysIEEE Transactions on Antennas and Propagation, 1983