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MIMO Antennas: Design Approaches, Techniques and Applications
Preeti Sharma1,2, Rakesh N Tiwari3, Prabhakar Singh1
1Physics Division, School of Basic and Applied Sciences, Galgotias University, Greater Noida 203201, India.
Sensors (Basel, Switzerland)
|October 27, 2022
Summary
Multiple-Input Multiple-Output (MIMO) antennas are crucial for modern wireless systems, enabling high data rates. This review explores MIMO antenna designs for 5G and 6G, focusing on ultra-wideband, dual-band, and circularly polarized types.
Area of Science:
- Wireless Communication Engineering
- Antenna Theory and Design
- Signal Processing
Background:
- Modern wireless systems demand high data rates and reliability, exceeding single-antenna capabilities.
- Multiple-Input Multiple-Output (MIMO) antennas are essential for current wireless technologies, significantly increasing channel capacity.
- Achieving optimal isolation in compact MIMO antenna systems for 5G terminals presents a significant design challenge.
Purpose of the Study:
- To review the fundamentals, performance parameters, and design methodologies of MIMO antennas.
- To discuss design approaches for ultra-wideband (UWB), dual-band, and circularly polarized MIMO antennas.
- To analyze and compare recent MIMO antenna designs based on isolation, gain, efficiency, ECC, and CCL.
Main Methods:
- Literature review of MIMO antenna fundamentals and design principles.
- Comparative analysis of various MIMO antenna designs (UWB, dual-band, circularly polarized).
- Discussion of performance metrics including isolation, gain, efficiency, Envelope Correlation Coefficient (ECC), and Channel Capacity Loss (CCL).
Main Results:
- MIMO antenna systems are vital for high-speed communication, with specific designs tailored for UWB, dual-band, and circular polarization.
- Recent designs offer improved isolation techniques, gain, and efficiency, crucial for applications like 5G and beyond.
- Performance metrics like ECC and CCL are analyzed to evaluate antenna suitability for different wireless applications.
Conclusions:
- This review provides a comprehensive guide for designing MIMO antennas suitable for diverse applications including UWB, satellite, GSM, Bluetooth, WiMAX, and WLAN.
- Challenges in indoor MIMO environments are discussed, with potential solutions for performance enhancement.
- The review highlights the applicability of MIMO characteristics for future 6G technology development.
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