Electronic device case with antenna

摘要

A method for improving signal quality for a mobile electronic device and an apparatus embodying the method, comprising a protective case comprising a shell that encases at least a portion of the mobile electronic device; an external antenna assembly position-ably attached to the shell; a transmission line attached to the shell and electrically interconnected to the case antenna; and a near-field coupling device attached to the shell and having a feed port electrically interconnected to the transmission line, the near-field coupling device configured to near-field couple to a native antenna of the encased mobile electronic device to capture an electromagnetic signal generated by the native antenna of the mobile electronic device.

主权项

1. A protective case for improving radio frequency signal quality of a mobile electronic device, the protective case comprising:
a shell that encases at least a portion of the mobile electronic device; an external antenna assembly position-ably attached to the shell to improve signal strength by positioning the external antenna assembly relative to the shell; a transmission line attached to the shell and electrically interconnected to the case antenna; and a near-field coupling device attached to the shell and having a feed port electrically interconnected to the transmission line, the near-field coupling device configured to near-field couple to a native antenna of the encased mobile electronic device to capture an electromagnetic signal generated by the native antenna of the mobile electronic device and further configured to receive a second electromagnetic signal at the feed port and near-field couple the second electromagnetic signal to the native antenna of the mobile electronic device, the second electromagnetic signal received at the feed port from the case antenna through the transmission line.