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Design of Multi-Mode Antenna Array for Use in Next-Generation Mobile Handsets
Naser Ojaroudi Parchin1, Haleh Jahanbakhsh Basherlou2, Raed A Abd-Alhameed1,3
1Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, UK.
Sensors (Basel, Switzerland)
|April 30, 2020
Summary
A novel tri-band multiple-input-multiple-output (MIMO) antenna array for 5G systems is presented. This design offers polarization diversity and good performance, making it suitable for future multi-mode applications.
Area of Science:
- Electrical Engineering
- Antenna Theory
- Wireless Communications
Background:
- Fifth-generation (5G) cellular systems require advanced antenna solutions for high data rates and reliable connectivity.
- Existing antenna designs often face challenges in achieving multi-band operation, polarization diversity, and compact integration within mobile devices.
Purpose of the Study:
- To propose and validate a new tri-band multiple-input-multiple-output (MIMO) antenna array design for 5G cellular systems.
- To investigate the antenna's performance, including its multi-band capabilities, polarization diversity, and integration feasibility in smartphones.
Main Methods:
- Design and simulation of an eight-element planar-inverted F antenna (PIFA) array on a 150 × 75 mm² handset mainboard.
- Experimental testing to validate S-parameters, return loss, isolation, efficiency, gain, total active reflection coefficient (TARC), and envelope correlation coefficient (ECC).
- Analysis of radiation characteristics considering user proximity and handset components.
Main Results:
- The proposed MIMO antenna operates effectively across three frequency bands (2.5-2.7 GHz, 3.4-3.75 GHz, 5.6-6 GHz) for LTE and 5G applications.
- Achieved return loss better than 15 dB, acceptable isolation, and polarization diversity.
- Demonstrated low TARC and ECC, good efficiency and gain, with robust performance under user influence.
Conclusions:
- The novel tri-band MIMO antenna array is a promising candidate for future multi-mode 5G smartphone applications due to its compact size, ease of integration, and excellent performance.
- The design provides essential features like multi-band operation and polarization diversity crucial for advanced wireless communication systems.
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