Antenna equipment, power supply equipment, and electronic equipment

Abstract

It receives the electric field energy of radio waves and quasi-electrostatic fields (near-fields) in space and converts it into energy. [Solution] The antenna device has an antenna section comprising a rectifier circuit for receiving electric field energy of radio waves and quasi-electrostatic fields in space and rectifying AC signals into DC signals, and an antenna section comprising a first antenna element used in contact with the human body when the human body is not grounded to the earth, and a second antenna element made of a separate conductor from the first antenna element and provided so as not to come into contact with the human body, and an input line of the AC signal output from the antenna section, which is output from the first antenna element used in contact with the human body to the rectifier circuit, is connected in series with the rectifier circuit.

Claims

1. The antenna has a rectifier circuit for receiving electric field energy of radio waves or quasi-electrostatic fields in space and rectifying AC signals into DC, and has an antenna section composed of a first antenna element which is a conductor used in contact with the human body when the human body is not grounded to the earth, and a second antenna element which is a conductor separate from the first antenna element and is provided so as not to come into contact with the human body. An antenna device in which, of the AC signals output from the antenna section, the input line output from the first antenna element used in contact with the human body to the rectifier circuit is connected in series with the rectifier circuit.

2. The antenna device according to claim 1, wherein the contact surface of the first antenna element with the human body is composed of a conductive electrode made of one or a combination of gold, silver, aluminum, copper, iron, nickel, or an alloy, conductive resin, or conductive rubber.

3. The antenna device according to claim 2, wherein the electrode is resin-coated.

4. The antenna device according to claim 2, wherein the electrode is pin-shaped, hemispherical, uneven, or planar, in accordance with the shape of the equipment used.

5. The antenna device according to claim 1, wherein the second antenna element is a conductor such as copper and is composed of the ground of the receiver's circuit board, a pattern on the board separate from the ground, or a conductor such as a receiver housing that does not come into contact with the human body.

6. The antenna device according to claim 1, further comprising a separation circuit for frequency-separating the AC signal input from the antenna unit, and a plurality of rectifier circuits for rectifying the AC signals separated by the separation circuit.

7. The antenna device according to claim 1, wherein the second antenna element and the ground are capacitively coupled.

8. The antenna device according to claim 1, which receives an electric field generated when a human body walks.

9. The antenna device according to claim 1, wherein the case is made of an insulating material on the contact surface with the human body other than the contact portion.

10. An antenna device having a rectifier circuit in which the ratio of the forward current when the forward voltage of the diode for rectification is applied to the reverse current when that voltage is applied in the reverse direction is at least 4700 times.

11. An antenna device having a rectifier circuit in which the resistance value, determined using the reverse current when 10V is applied in the reverse direction of the rectifier diode, is 1.4 MΩ or more, in order to capture the electric field energy of radio waves or quasi-electrostatic fields (near-fields) in space.

12. A rectifier circuit in which the diode used in claim 11 is made of silicon.

13. An antenna device according to claim 1, having a capacitance for charging power of a rectified DC waveform, and a mechanism for charging a storage battery when its level becomes constant, and a power supply device that monitors the state when a human body touches a grounded object such as metal, senses that its capacity has decreased, opens a switch provided on the antenna element 1, and prevents the stored power from decreasing.

14. The power supply device according to claim 13, which periodically checks the capacity and turns on and off a switch provided on a first antenna element connected to the human body.

15. The antenna has a rectifier circuit for receiving electric field energy from radio waves or quasi-electrostatic fields (near-fields) in space and rectifying AC signals into DC, and has an antenna section composed of a first antenna element which is a conductor used in contact with the human body when the human body is not grounded to the earth, and a second antenna element which is a conductor separate from the first antenna element and is provided so as not to come into contact with the human body. The antenna unit has an input line connected in series with the rectifier circuit, which is an AC signal output from the antenna unit, and is used in contact with the human body, and the input line is an AC signal output from the first antenna element used in contact with the human body. A storage element charged by the output of the rectifier circuit, A communication unit that uses the output of the aforementioned energy storage element as its power source. Electronic devices equipped with them.

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