Design of Novel @-Shaped Patch Antenna for 5G, Wi-Fi, WLAN, and IoT Wearable Applications

Featuring a novel @-shaped radiating element, this study details the design and characterization of a portable wideband microstrip patch antenna (MPA). The @-symbol's unique shape can increase radiation stability and impedance bandwidth by letting several current channels and resonant modes live together on a tiny area. The antenna works in the 5 GHz to 10 GHz range, which includes 5G NR mid-band, Wi-Fi 6/7, WLAN, and Internet of Things (IoT) frequency bands. It was designed and tested using CST Microwave Studio. The proposed design exhibits a peak gain of around 3.14 dB, a minimum return loss of -23.82 dB at the notable resonance, and a maximum radiation efficiency of about 69%. These results show that impedance matching is strong and reflection is low, which makes wireless communication great for improving energy efficiency. The @-shaped structure is great for use in logo-based embedded systems, smart clothing, and wearable accessories since it looks good and has electrical performance benefits. So, the recommended antenna is a good choice for portable and Internet of Things communication devices that will be used in a variety of settings in the future. Its compactness, high impedance bandwidth, and flexible design make it a promising choice.