ANTENNA MODULE WITH PROXIMITY SENSING FUNCTION
First Claim
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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Accused Products
Abstract
An antenna module with proximity sensing function is provided for being disposed inside an electronic device and comprises a ground plane, an antenna, a sensing element, an electrostatic protection element, a high-frequency blocking element and a capacitive proximity sensor. The antenna is coupled to the ground plane. The sensing element is connected to the capacitive proximity sensor through the high-frequency blocking element and produces a capacitance signal when sensing the approach of an object for accordingly reducing the output power of the antenna module. The electrostatic protection element is coupled between the sensing element and the ground plane, exhibits low/high impedance, respectively, at high/low frequency and further changes to an extremely low impedance to provide a conducting path to quickly lead a static high voltage to the ground plane for keeping the electronic device operating normally when the electronic device encounters the problem of the electrostatic discharge
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Citations
10 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. An antenna module with proximity sensing function provided for being disposed inside an electronic device, the antenna module with proximity sensing function comprising:
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a ground plane; a coupling element connected to the ground plane through a matching circuit and a signal feed-in element; a high-frequency blocking element connected between the coupling element and a capacitive proximity sensor; at least an electrostatic protection element connected between the coupling 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; and wherein the coupling element is used as an antenna for receiving and transmitting data in high-frequency operation and as a sensing element in low-frequency operation for producing a capacitance signal when sensing an approach of an object. - View Dependent Claims (7, 8, 9, 10)
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Specification