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Communication

A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna

1
School of Information Science and Technology, Nantong University, Nantong 226019, China
2
The Nantong Research Institute for Advanced Communication Technologies, Chongchuan District, Nantong 226019, China
*
Author to whom correspondence should be addressed.
Sensors 2023, 23(9), 4400; https://doi.org/10.3390/s23094400
Submission received: 6 March 2023 / Revised: 19 April 2023 / Accepted: 28 April 2023 / Published: 30 April 2023
(This article belongs to the Special Issue MIMO Technologies in Sensors and Wireless Communication Applications)

Abstract

In this article, a microwave (MW)/millimeter wave (MMW) aperture-sharing antenna is proposed. The antenna is constructed using two orthogonal columns of grounded vias from a 3.5 GHz slot-loaded half-mode substrate-integrated waveguide (HMSIW) antenna. These vias are reused to create two sets of 1 × 4 MMW substrate-integrated dielectric resonator antenna (SIDRA) arrays. With this proposed partial structure reuse strategy, the MW antenna and MMW arrays can be integrated in a shared-aperture manner, improving space utilization and enabling dual-polarized beam steering capability in the MMW band, which is highly desirable for multiple-input multipleoutput (MIMO) applications. The integrated antenna prototype was manufactured and measured for verification. The 3.5 GHz antenna has a relative bandwidth of 3.4% (3.44–3.56 GHz) with a peak antenna gain of 5.34 dBi, and the 28 GHz antenna arrays cover the frequency range of 26.5–29.8 GHz (11.8%) and attain a measured peak antenna gain of 11.0 dBi. Specifically, the 28 GHz antenna arrays can realize dual-polarization and ±45° beam steering capability. The dual-band antenna has a very compact structure, and it is applicable for 5G mobile communication terminals.
Keywords: steerable beam; dual polarization; millimeter-wave MIMO; aperture-sharing steerable beam; dual polarization; millimeter-wave MIMO; aperture-sharing

Share and Cite

MDPI and ACS Style

Zhang, Q.; Chai, B.; Chen, J.; Yang, W. A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna. Sensors 2023, 23, 4400. https://doi.org/10.3390/s23094400

AMA Style

Zhang Q, Chai B, Chen J, Yang W. A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna. Sensors. 2023; 23(9):4400. https://doi.org/10.3390/s23094400

Chicago/Turabian Style

Zhang, Qinghu, Bitian Chai, Jianxin Chen, and Wenwen Yang. 2023. "A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna" Sensors 23, no. 9: 4400. https://doi.org/10.3390/s23094400

APA Style

Zhang, Q., Chai, B., Chen, J., & Yang, W. (2023). A Compact Aperture-Sharing Sub-6 GHz/Millimeter-Wave Dual-Band Antenna. Sensors, 23(9), 4400. https://doi.org/10.3390/s23094400

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