This document summarizes the steps taken to simulate and analyze the radiation pattern of a slot antenna using HFSS software. The simulation involved creating a slot antenna geometry using copper material, applying a lumped port excitation from one edge to another of the slot, analyzing the return loss graph and far field pattern, and obtaining output parameters such as maximum gain, radiated power, radiation efficiency and front-to-back ratio. The conclusion is that slot antennas have applications in radar communication, cell phone base stations, and microwave sources based on analyzing the simulation results.

1. 1 |
Program: To plot the Radiation Pattern of Slot Antenna using HFSS.
Geometry of Slot Antenna
Set Units: Select the units' inches.
Set Material: Select the material: Copper
Lumped Port Excitation
Create a Lumped Port and Excite it. Direction vector: From one edge to another edge of the
Slot antenna.

2. 2 |
Return loss graph
Far field Pattern
2D-Gain

3. 3 |
3D-Gain Total
Analysis Setup
Define Solution Setup and Frequency Sweep and analyse the model you have created.
Quantity Value
Max U 0.264506(W/sr)
Peak Directivity 3.39329
Peak Gain 3.39045
Peak Realized Gain 3.32396
Radiated Power 0.979568(W)
Accepted Power 0.980388(W)
Incident Power 1(W)
Radiation Efficiency 0.999164
Front to Back Ratio 1.10563
Decay Factor -0

4. 4 |
Antenna Output Parameter
Conclusion:
From this practical performed on HFSS software for Slot Antenna we obtained different
output parameters of antenna , its return loss graph and far field pattern . By analysing these
graph we come to the conclusion that slot antenna has several application as a feed element
for Radar Communication, Cell Phone Base Station, and microwave sources .