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ANTENNA MODULE WITH PROXIMITY SENSING FUNCTION

  • US 20140333494A1
  • Filed: 05/06/2014
  • Published: 11/13/2014
  • Est. Priority Date: 05/07/2013
  • Status: Active Grant
First Claim
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1. An antenna module with proximity sensing function adapted to be disposed inside an electronic device, the antenna module with proximity sensing function comprising:

  • a ground plane;

    an antenna connected to the ground plane through a signal feed-in element for wireless transmission and reception of data;

    at least a sensing element being separated from the antenna by a gap and connected to a capacitive proximity sensor through a high-frequency blocking element, wherein the sensing element produces a capacitance signal to be transmitted to the capacitive proximity sensor through the high-frequency blocking element when sensing an approach of an object; and

    at least an electrostatic protection element connected between the sensing element and the ground plane, wherein the electrostatic protection element exhibits low impedance at high frequency, exhibits high impedance at low frequency and exhibits a conducting state when facing an abnormal instantaneous high voltage to allow the instantaneous high voltage to be transmitted to the ground plane.

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