Pattern-Diversity-Based Decoupling for Planar Yagi-Uda MIMO Antennas with Beam-Deflection
- Resource Type
- Conference
- Authors
- Shen, Wanting; Pan, Shaopeng; Li, Jinxin; Li, Gaosheng
- Source
- 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT) Microwave and Millimeter Wave Technology (ICMMT),2021 International Conference on. :1-3 May, 2021
- Subject
- Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Microwave antennas
Mutual coupling
Microwave technology
Yagi-Uda antennas
Millimeter wave technology
Directional antennas
Directive antennas
Decoupling method
multiple-input multiple-output (MIMO) antenna
pattern diversity
- Language
A decoupling method based on pattern diversity is proposed for two symmetrical planar Yagi-Uda antenna elements. A traditional planar Yagi-Uda multiple-input multiple-output (MIMO) antenna and the decoupled antenna only by changing the horizontal position of the directors are compared. The desired radiation pattern with beam-deflection is obtained by four directors placed along diagonal for each element. The decoupled antenna operates in the 5.8 GHz band (5.6-6.1 GHz) with average gain of 8.5 dBi. The edge-to-edge spacing between two radiating elements is only 10 mm (0.18 λ 0 ). The mutual coupling is reduced by 3-12.7 dB at 5.72-6.1 GHz band. This decoupling method reduces the difficulty of designing tightly-coupled MIMO antennas and can be applied to a variety of directional antennas.