ghanbari foshtami, hamed, Hashemi Talkhouncheh, Ali, Emami, Hossein. “Wideband Log Periodic-Microstrip Antenna with Elliptic Patches.” Journal of Information Systems and Telecommunication (JIST) , vol. 1, no. 2, 2013, pp. 1-10. 10.7508/jist.2013.02.005