Reduction of mutual coupling between closely spaced PIFAs
Authors:
- 18 March 2010
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 46 (6) , 392-394
Abstract
A new approach for reducing mutual coupling between planar inverted-F antennas (PIFAs) is proposed. The approach consists of placing a resonator in between the PIFAs. The signal from the first antenna is scattered by the resonator and couples to the second antenna creating another path for mutual coupling, the phase and amplitude of which may be varied to suppress the existing coupling between the antennas. The simulation and experimental studies show that the proposed technique is able to reduce mutual coupling to about −25 dB from −3.5 dB when the antennas are placed as close as λ/11. Reduced mutual coupling between closely spaced antennas may find applications in MIMO, multi-antenna systems and phased arrays.Keywords
This publication has 3 references indexed in Scilit:
- Mutual coupling reduction between two microstrip patch antennas2008 Canadian Conference on Electrical and Computer Engineering, 2008
- Reduction of Mutual Coupling Between Closely-Packed Antenna ElementsIEEE Transactions on Antennas and Propagation, 2007
- Modified PIFA and its array for MIMO terminalsIEE Proceedings - Microwaves, Antennas and Propagation, 2005