Patent ID: 8996080
Filing Date: 2015-03-31
Classification: H01Q,H04B

Abstract:
1. A radio-frequency (RF) device for a wireless communication system, the RF device comprising: a grounding unit, for providing grounding; an antenna, comprising: a capacitive sensing unit, for sensing an environment capacitance within a specific range via the radiating element; a first direct-current (DC) blocking element, electrically connected between the ground terminal of the antenna and the grounding unit, for cutting off a direct-current signal route from the ground terminal to the grounding unit; a second DC blocking element, electrically connected between the radiating element and the signal feed-in unit, for cutting off a direct-current signal route from the radiating element to the signal feed-in unit; and a high-frequency blocking element, electrically connected between the radiating element and the capacitive sensing unit, for cutting off a high-frequency signal route from the radiating element to the capacitive sensing unit.