Comparative Analysis of Microstrip Patch Antenna with Different Slots and Substrate Materials

Modern wireless communication highly depends on antenna. A “low-profile Microstrip Patch Antenna” (MPA) with increased gain for wireless communication is presented in this work. Due to its outstanding radiation capabilities, MPA are widely used in wireless communication. Lighter weight lower cost, low profile, compact size, and ease of fabrication are a few benefits. It may be quickly and easily printed directly on the circuit boards. Low gain and limited bandwidth are the main drawbacks of conventional MPA. Numerous methods have been employed to overcome these drawbacks. Feeding type, slots, defective ground structures, frequency selective surfaces, dielectric substrate, shorting pins, metamaterials are a few of the approaches employed. In this study, multiple patch antennas with varying slots for analyzing gain and directivity. These slot antennas are triangular slot (LPSP), multiple slots (NMSPA), rectangular slot (NLMP) and K shaped slot (NLKPA) with different construction materials are designed and compared with conventional microstrip antenna at a 2.4 GHz frequency. These slotted antennas are designed using the Altair Feko simulator. Then, it can be examined using a one-way anova test with an alpha value of 5% and a pretest power of 80%. From this investigation, the low profile with triangular slot patch (LPSP) antenna achieved high directivity (8.65dB) and peak gain (8.58dB) when compared with other antennas.