L-Slotted Rectangular Patch Antenna with DGS for mm Wave Applications

This research paper focuses on a simple design of rectangular antenna having an ‘‘L’’ slot that is useful for millimeter (mm) Wave Application. The demand of high frequency and high bandwidth is increasing. The challenges in selecting proper substrate to reach there with simple structural design are notable issues for the researchers. In this paper, a simple rectangular antenna with L’’ slot on Rogers Ultralam1217 (tm) substrate with the introduction of Defected Ground Structure (DGS) is presented having a dimension of 6mm× 6mm× 0.8mm covering a wide range in mmWave from 24.34 GHz to 34.97 GHz (n257/n258/n261). A notable gain of 5. 8dB is achieved in resonant frequency of 29.06 GHz with a maximum radiation efficiency of 96.81%. A good result of Surface Current Distribution is also found. The overall design is formulated and simulated with hfss 21.0 software.