DESIGN AND SIMULATION OF PATCH ANTENNA USINGINTEGRATED ELECTROMAGNETIC BAND GAP (EBG) STRUCTURE FOR SIGNAL DETECTION IN ISM BAND APPLICATIONS
A.Nivetha 1, C.Balamurugan 2
1 PG student, Department of ECE, National Engineering College, Kovilpatti, Tamil Nadu, .India.2 Assistant Professor (SG), Dept of ECE, National Engineering College, Kovilpatti, Tamil Nadu.
The Electromagnetic Band gap (EBG) structure is used in patch antenna construction to achieve better performance of the system. The EBG structure is created on the ground plane to reduce the return loss and to attain unity in VSWR. In this work, a square shaped EBG structure for patch antenna is designed at ISM band of operating frequency. The designed antenna can be easily fabricated on the low cost duroid 5870 based on PCB fabrication for better efficiency. Thus to enhance the radiation characteristics of the antenna, EBG is used. A ground structure based on a compact Electromagnetic Band Gap (EBG) unit cell has been used. The loss can be reduced by creating defect on the ground plane of the patch antenna. The simulation results shows that the return loss is reduced to -40 dB and the VSWR value gets unity for signal detection in ISM band applications.
