DESIGN OF RECTANGULAR MICRO-STRIP PATCH ANTENNA FOR 916 MHZ

In this Project we are designed a Micro-strip Patch Antenna at a unique Frequency which is 916 MHz. We used RT-Duroid as a substrate having dielectric constant 10.2 and thickness 1.9mm.Rectangular Patch and Ground both of copper material. We used line feed method. DGS (Defected ground surface) is used for miniaturization of Antenna. This particular frequency is mainly used in Missile communication Purposes. For designing of Antenna we used CST (computer simulation technology) Software. For low frequency application this is very useful. In CST tool first of all we have make Ground and Substrate which is double in width and length as compare to Patch width and length which is mounted on substrate. Line feeding technique is used in fed connection. For simulation in CST we have used discrete port and time domain solver for less time consuming. After that we have analyzed all the parameters as like radiation pattern, S11.After doing lot of iteration we miniaturized the antenna at some extent.