Low-cost high-order-mode cavity backed slot array antenna using empty substrate integrated waveguide for the 5G n260 band

2021, Volume 22, Issue 4

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Frontiers of Information Technology & Electronic Engineering >> 2021, Volume 22, Issue 4 doi: 10.1631/FITEE.2000503

Affiliation(s): School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China; Beijing Key Laboratory of Work Safety Intelligent Monitoring, Beijing 100876, China; MOE Key Laboratory of Universal Wireless Communications, Beijing 100876, China; less

Received: 2020-09-26 Accepted: 2021-04-15 Available online: 2021-04-15

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Abstract

A low-cost slot array antenna is proposed for fifth-generation wireless communication (5G) n260 band applications. The antenna is based on the low-cost printed circuit board (PCB) material FR-4. Empty substrate-integrated waveguide is used to avoid high dielectric loss. High-order-mode cavities are introduced to reduce the complexity of the feeding network. The proposed antenna shows a maximum realized gain of 27 dBi with a radiation efficiency of 72.4%. The measurement and simulation results achieve good agreement. The proposed antenna can be a good candidate for low-cost millimeter-wave (mmWave) wireless communication systems.

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