APPARATUS AND METHODS FOR GROUND PLANE LOADING OF ANTENNAE
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United States of America Patent
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Oct 16, 2015
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Oct 16, 2015
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High radiation-efficiency antenna apparatus, and methods of manufacturing and utilizing the same. In one embodiment, an intentionally “loaded” antenna configuration is used within a handheld mobile device (e.g., cellular telephone) in order to enhance radiation efficiency for a given size antenna, or conversely allow for a reduction in size of the antenna for the same electrical performance. In one implementation, the antenna (and optionally chassis of the mobile device) is loaded through use of a magnetically permeable structure to increase propagation of surface currents, thereby increasing the electrical length of the antenna (and enhancing radiation efficiency) without any significant modification to the form factor of the antenna/chassis.
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