This video explains how to create a microstrip patch antenna using the Ansys HFSS Antenna Toolkit. The HFSS Antenna Toolkit is a powerful tool for antenna customization, providing flexibility to select the desired frequency, substrate material, and type of antenna. The HFSS Antenna Toolkit synthesizes the antenna dimensions according to the operating frequency. In this video, the rectangular probe-fed patch antenna is created to be operated at 1 GHz. Additionally, we discuss results such as return loss, gain, and input impedance.