Gain Improvement of PIFA Antenna Using Glass Substrate in Comparison with FR4 Substrate

The primary intention of this study is to design a novel planar inverted F-antenna (PIFA) using glass substrate in comparison with FR4 dielectric material at a frequency range of 8.5 GHz to optimize the gain in (dB) using a high-frequency structure simulation (HFSS). Materials and Methods: The gain of a PIFA antenna using glass substrate (n = 20) compared with a PIFA antenna using FR4 substrate (n = 20) using the HFSS tool, where n is the sample size. In this study, there are two groups, each with 20 samples and an 80% pretest power (G-power). The PIFA antenna was created using HFSS software utilizing the finite element method. By simulating the PIFA antenna, the bandwidth was calculated. Results: The PIFA antenna using glass substrate has an improved gain −14.2430 dB than that of the PIFA antenna using FR4 substrate with a gain of −14.2151 dB. The proposed antenna produced a G-power of 80%. Conclusion: The gain of the PIFA antenna using glass substrate shows significantly better performance compared with the FR4 substrate.