@incollection{, CAF5722815D9E709D340C2664A4A86D6 , author={{Mubarak SaniEllis} and {Kwame Nkrumah University of Science and Technology}}, journal={{Global Journal of Researches in Engineering}}, journal={{GJRE}}2249-45960975-586110.34257/gjre, address={Cambridge, United States}, publisher={Global Journals Organisation}1731520 } @incollection{b0, , title={{Circularly polarized square slot antenna with a pair of inverted-L grounded strips}} , author={{ J.-YSze } and { C.-CChang }} , journal={{Lett}} 7 , year={Jul. 2008} , publisher={IEEE Antennas and Wireless Propag} } @incollection{b1, , title={{Broadband CPW-fed circularly polarized square slot antenna with inverted L-strip for UWB applications}} , author={{ JPourahmadazar } and { CGhobadi } and { JNourinia } and { NFelegari } and { HShirzad }} , journal={{IEEE Antennas Wireless Propag. Lett}} 10 , year={May 2011} } @incollection{b2, , title={{Broadband CPW-Fed circularly polarized square slot antenna with three inverted Lshaped grounded strips}} , author={{ NFelegari } and { JNourinia } and { CGhobadi } and { JPourhmadazar }} , journal={{IEEE Antennas Wireless Propag. Lett}} 10 , year={Apr. 2011} } @book{b3, , title={{Circular polarized antenna}} , author={{ TNChang }} for 2.3-2.7 } @incollection{b4, , title={{}} , author={{ GhzWi } and { MaxBand }} , journal={{Microw. Opt. Technol. Lett}} 51 12 , year={2009} } @incollection{b5, , title={{Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarised square slot antenna}} , author={{ JYSze } and { JCWang } and { CCChang }} , journal={{Electron. Lett}} 44 18 , year={Aug. 2008} } @incollection{b6, , title={{Design of CPW-fed circularly polarized antenna with a miniature configuration}} , author={{ JYSze } and { S.-PPan }} , journal={{IEEE Trans. Antennas Propag}} 10 , year={Jan. 2011} } @incollection{b7, , title={{A printed single-layer UWB monopole antenna with extended ground plane stubs}} , author={{ KXu } and { ZZhu } and { HLi } and { JHuangfu } and { CLi } and { LRan }} , journal={{IEEE Antennas and Wireless Propag. Lett}} 12 , year={2013} } @incollection{b8, , title={{Broadband circularly polarized slot antenna array fed by asymmetric CPW for L-band application}} , author={{ SFu } and { SFang } and { ZWang } and { XLi }} , journal={{IEEE Antennas Wireless Propag. Lett}} 8 , year={Sep. 2009} } @incollection{b9, , title={{Broadband circularly polarized slot antenna for L and S-band applications}} , author={{ JPourahmadazar } and { VRafii }} , journal={{Electron Lett}} 48 10 , year={May 2012} } @incollection{b10, , title={{CPW-Fed broadband circularly polarized planar monopole antenna with improved ground-plane structure}} , author={{ LZhang } and { YCJiao } and { ZBWeng }} , journal={{IEEE Trans. Antennas Propag}} 61 9 , year={Sep. 2013. Aug. 2008} , note={Electron. Lett.} } @incollection{b11, , title={{A printed triangular monopole with wideband circular polarization}} , author={{ XLPanahi } and { GBao } and { MJRuvio } and { Ammann }} , journal={{IEEE Trans. Antennas Propag}} 63 1 , year={2015} } @book{b12, , title={{A dual-band circularly polarized planar monopole antenna for WLAN/Wi-Fi applications}} , author={{ M.-TTan } and { B.-ZWang }} , year={2016} , publisher={IEEE Antennas and Wireless Propag. Lett} 15 } @book{b13, , title={{}} , author={{ CEffect }} } @incollection{b14, , title={{Compact CPW-Fed planar monopole antenna with wide circular polarization bandwidth}} , author={{ SRezaeieh } and { AAbbosh } and { MAAntoniades }} , journal={{IEEE Antennas Wireless Propag.Lett}} 12 , year={2013} } @incollection{b15, , title={{Triband planar monopole antenna with compact radiator for WLAN/WiMAX applications}} , author={{ HChen } and { XYang } and { YZYin } and { STFan } and { JJWu }} , journal={{IEEE Antennas Wireless Propag. Lett}} 12 , year={2013} }