The Effect of Shape on Microstrip Folded Dipole Antenna on the Compatibility Between Simulation and Experimental Method

The folded dipole microstrip antenna has been designed to increase the operating frequency and stabilize the radiation pattern. In addition, this type of antenna has small size, is lightweight, and can operate at higher frequency. So, it can be applicated in microwave devices/communications. In this study, there are three types of folded dipole microstrip antennas which were designed from copper and coated with FR-4. The three types of antennas were measured by two methods: 1. the simulation method used Finite-Difference Time-Domain (FDTD); and 2. the experimental method used a vector network analyzer (VNA). The comparison between simulation and experimental results on the first type of folded dipole microstrip antenna indicated a high error percentage. However, adding the resonator on the second of microstrip folded dipole antenna could minimize the error percentage and increase the gain. Furthermore, the size change of the dipole on the third type of microstrip folded dipole antenna could minimize the error percentage and the return loss.