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The popularity of and demand for GPS functionality in mobile phones and smartphones is growing rapidly. In the case of car navigation systems, features and dimensions have been reduced to develop removable or mobile PNDs. These slimmer mobile GPS devices require equally small and slim antennas. However, because the position of the fingers and hand can interfere with radio waves and weaken reception, optimal placement of the antenna is also essential. While Taiyo Yuden’s previous compact chip antenna could only be mounted to the corner of a substrate for GPS-ready devices, the smaller AH316M157501 allows for flexibility in antenna placement.