This article describes the design of a compact ferrite loaded UHF sleeve monopole antenna covering 225-450 MHz that is colocated with GPS annular ring microstrip antennas on top of a handset. This antenna provides both communications and navigational capabilities to the user and is intended for military and commercial applications. (c) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2513-2516, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27102