Mobility

Printed Internal Pentaband WWAN Antenna Using Chip-Inductor-Loaded Shorting Strip for Mobile Phone Application

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Executive Summary

Mobile phone antennas with compact size, low profile, and wide operation band characteristics have attracted great attention both in academic and industrial field. In recent years, a variety of small size and broadband antennas excited by the capacitive coupled-fed scheme to achieve multiband operation have been reported. These reported antennas can be configured to occupy a compact volume inside the mobile phone for multiband operation. However, most of the reported designs did not consider the integration of internal antenna with the system ground plane because an isolation distance is often needed to guarantee the performance of wideband operation. As a result, these antennas often occupy the whole edge of the system circuit ground plane which is not so suitable for the practical application.

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