MULTIBAND SLOT LOOP ANTENNA APPARATUS AND METHODS

摘要

PURPOSE: A multiband slot loop antenna and a method thereof are provided to offer low costs and low complexity by having an antenna with a small form factor. CONSTITUTION: A non-ground lower part(108) of a device stores an antenna tuning structure. The tuning structure is connected to a feed electronic device of the device in a feet point. The tuning structure includes tuning branches. A serial tuning circuit is arranged between a feed and the branches. The serial tuning circuit controls an electrical length of a low-frequency antenna resonator.