论文部分内容阅读
1 IntroductionrnA 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.