Development of stacked antenna integrated with ring configuration LED for Wi-Fi application

Integration LED with microstrip antenna in order to enhanced microstrip antenna functionality has been studied in this research paper. With rapid development microstrip antenna in Wi-Fi application, this antenna was designed and developed at 2.45 GHz to support Wi-Fi applications. Simulation were done using computer simulation tool (CST) to design. The stacked antenna consists of three layers substrate where the LEDs are located at the top layer as the parasitic element. The radiating patch has been design at the second substrate. Meanwhile, ground plane and feed line are located on the bottom substrate. Simulated and measured results are compared to identify the feasibility of the integrated antenna. The simulation results have shown that the antenna works well with the integrated LED giving 4.06dBi gain, -22.90dB return loss and 100MHz bandwidth while 3.35dBi gain, -17.79dB return loss and 90MHz bandwidth design without LED placement. Antenna was measured using Vector network analyzer (VNA) and Anechoic chamber. Result between simulation and measurement shows that antenna potentially provide a new opportunity to introduce multi functional device.