Slotted Trapezoidal Shaped Bandwidth Enhanced Microstrip Antenna for Bluetooth/WiMAX Applications

An antenna is a fundamental element of a communication system for transmitting and receiving radio waves. We proposed a bandwidth enhance antenna using slotting and notching for wireless communication (Wi-Fi, WiMax), Bluetooth, and mobile satellite communications. First, we designed a simple rectangular patch and then converted it into a trapezoidal shape by introducing various iterations. The proposed antenna operates at the frequency band of 2.56 GHz (1.8GHz-3.4GHz) with a bandwidth of 61.53% and a gain of 4.86 dB, using an appropriate transmission line. The proposed antenna is investigated, designed, fabricated, and experimentally validated, which shows good agreement between measured and simulated results.