@incollection{, 4782AF69020725578457154691E8B7B7 , author={{Dr. LakhanSingh} and {Rajesh KumarVerma} and {I.E.T., Bundelkhand Uniersity , Jhansi(UP)}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}1184750 } @book{b0, , author={{ WLStutzman } and { GAThiele }} , title={{Antenna Theory and Design}} New York , publisher={Wiley} , year={1998} , note={2nd ed} } @book{b1, , author={{ CABalanis }} , title={{Antenna Theory}} New York , note={2nd ed} } @book{b2, , title={{Broadband microstrip antenna}} , author={{ GKumar } and { KPRay }} , year={2003} , publisher={Artech House Inc} } @book{b3, , title={{}} , author={{ IJBahl } and { PMicrostripBhartia } and { Antennas }} , year={1980} , publisher={Artech House} } @incollection{b4, , title={{Circularly polarized U slot Antenna}} , author={{ KFTong } and { TPWong }} , journal={{IEEE Transactions on Antennas and Propagation}} 55 8 , year={August2007} } @book{b5, , title={{IE3D User's Manual Release 9}} , year={2002} , publisher={Zeland software, Inc., U.S.A} }