Miniaturized four-port UWB MIMO antennas with triple-band rejection using single EBG structures
Published online by Cambridge University Press: 15 March 2021
Abstract
This research paper introduces a ultra-wideband (UWB) multiple input multiple output (MIMO)/diversity antenna with three rejected bands using one compact electromagnetic band gap (EBG) structure. The suggested EBG structure rejects three bands at WiMAX, WLAN, and the X-band within the passband of the UWB antenna. To achieve compactness in the conventional EBG structure, two via and square slots are introduced. This structure contributes to better impedance matching by using tapered feedline and slots in the radiating patch. To improve the isolation among all four compact UWB monopoles, decoupling strips are extended from the ground plane. Furthermore, the |S21| is below 17 dB in between the antenna elements and the envelope correlation coefficient is below 0.5, which are tolerable values within the UWB range. Furthermore, different MIMO/diversity characteristics are also discussed. An FR-4 substrate with dimensions of 38 × 45 × 1.6 mm3 is used for the fabrication of the suggested structure.
Keywords
- Type
- Metamaterials and Photonic Bandgap Structures
- Information
- International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 2 , March 2022 , pp. 185 - 193
- Copyright
- Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association
References
- 4
- Cited by