TUNING AN ELECTRICALLY SMALL ANTENNA

摘要

An electrically small antenna, such as one physically sized appropriate to a mobile device, can be tuned in response to a detected change that can result in poorer reception using the electrically small antenna. Such detected changes include a detected change in the connectivity of a wired accessory relative to the mobile device, a detected change in a position of the mobile device, and a detected change of an audio channel selected by the mobile device. To minimize any user impact of the retuning of the electrically small antenna, a timer can be initiated and the antenna can be retuned during an opportune time, such as when one or more signal metrics associated with a signal being provided to the user drop below a threshold, or when the timer expires, whichever occurs first.