Abstract
The fifth generation (5G) of wireless communications will utilize the millimeter-wave (mm-wave) spectrum to achieve higher data rates to mobile users. The design of antenna arrays for mm-wave enabled mobile terminals requires wide bandwidth, good efficiency and high gain to combat free-space path loss. In this work, we present an attractive very compact in size antenna array design utilizing the concept of connected antenna arrays (CAA). CAA present wideband antenna responses that can be very suitable to mm-wave applications as well as provides more compact antenna sizes that can be integrated within mobile terminals compared to conventional ones. A slot based CAA is proposed in this work for standard mobile handset size terminals that includes a 4G as well as a 5G mm-wave antenna systems. The 4G bands covered are between 1.8–3.1 GHz while the 5G band covered is between 27.2–28.5 GHz.
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