TUNABLE ANTENNA INCLUDING TUNABLE CAPACITOR INSERTED INSIDE THE ANTENNA

摘要

A tunable component such as a tunable BST (Barium Strontium Titanate) capacitor is added inside the antenna structure, and the input impedance of the antenna is tuned by tuning this tunable component, rather than adding a multiple-component impedance matching network at the feed point of the antenna outside the antenna as in conventional solutions. With this structure, the input impedance of the antenna may be adjusted very precisely and efficiently.