TY - BOOK AU - Alia Mokhtar Hassan AU - Abdelmegid Allam , TI - Design and implementation of GPS antennas / PY - 2009/// CY - Cairo : PB - Alia Mokhtar Hassan , N1 - Thesis (M.Sc.) - German University - Faculty of Postgraduate Studies and Scientific Research - Department of Communication Engineering N2 - Circularly polarized microstrip antenna is widely used for Global Positioning System (GPS) applications owing to its advantages of low cost, low profile and broad receiving pattem . The thesis presents the performance of three different designs of circularly polarized dual band GPS planner antennas . One of these antennas is a novel proposal UR - http://172.23.153.220/th.pdf ER -