COMMUNICATION DEVICE, HIGH-FREQUENCY COUPLER, COUPLER ELECTRODE, AND COMPOSITE COMMUNICATION APPARATUS
First Claim
1. A communication device, comprising:
- a communication circuit part that performs processing of a high-frequency signal for data transmission;
a transmission path of said high-frequency signal;
a ground;
a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path; and
a resonance part that enlarges a current flowing into said coupler electrode through said transmission path, whereina micro dipole formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, andsaid high-frequency signal is transmitted to a communication partner oppositely arranged at an angle θ
of substantially zero with respect to the direction of said mirco dipole.
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Accused Products
Abstract
A communication device includes a communication circuit part, a transmission path for signals, a ground, a coupler electrode, and a resonance part. The coupler electrode includes an upper flat part as an electrode, a support, and a connecting portion. The support supports the upper flat part. Thus, the upper flat part faces the ground and is separately placed therefrom at a height only enough to ignore the wavelength of the signal, while having a flexible portion which is elastically deformable in the height direction. On the connecting portion, the other end of the support is connected to the transmission path. The resonance part enlarges a current flowing into the coupler electrode through the transmission path. A micro dipole is a line segment connecting between the center of accumulated electric charge in the coupler electrode and the center of mirror charge accumulated in the ground.
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Citations
11 Claims
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1. A communication device, comprising:
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a communication circuit part that performs processing of a high-frequency signal for data transmission; a transmission path of said high-frequency signal; a ground; a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path; and a resonance part that enlarges a current flowing into said coupler electrode through said transmission path, wherein a micro dipole formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, and said high-frequency signal is transmitted to a communication partner oppositely arranged at an angle θ
of substantially zero with respect to the direction of said mirco dipole. - View Dependent Claims (2, 3, 4)
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5. A high-frequency coupler, comprising:
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a transmission path of said high-frequency signal; a ground; a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path; and a resonance part that enlarges a current flowing into said coupler electrode through said transmission path, wherein a micro dipole formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, and said high-frequency signal is transmitted to a high-frequency coupler of a communication partner oppositely arranged at an angle θ
of substantially zero with respect to the direction of said micro dipole.
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6. A coupler electrode used in a high-frequency coupler that performs transmission of a high-frequency signal using an electric field coupling action, said coupler electrode comprising:
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an upper flat part that acts as an electrode; a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height; and a connecting portion where the other end of said support is connected to said transmission path, wherein said coupler electrode is manufactured by the steps of subjecting a plate metal to punching processing to form said upper flat part and a leg part to be provided as said support, subjecting said leg part to bending processing to bend said leg part substantially perpendicular to said leg part and bend a lower end portion of said leg part to form a flattened portion, and curving or bending said leg part to form a flexible portion which is elastically deformable in the direction of said height.
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7. A composite communication apparatus, comprising:
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means of first wireless processing that performs a contactless communication by an electromagnetic induction action using an antenna coil; and means of second wireless processing that performs a contactless communication by an electric field coupling action using a coupler electrode arranged near said antenna coil, wherein said means of second wireless processing includes a communication circuit part that performs processing of a high-frequency signal for data transmission, a transmission path of said high-frequency signal, a ground, a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path, and a resonance part that enlarges a current flowing into said coupler electrode through said transmission path, wherein a micro dipole is formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, and said high-frequency signal is transmitted to a communication partner oppositely arranged at an angle θ
of substantially zero with respect to the direction of said mirco dipole. - View Dependent Claims (8, 9, 10)
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11. A composite communication apparatus, comprising:
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a first wireless processing section that performs a contactless communication by an electromagnetic induction action using an antenna coil; and a second wireless processing section that performs a contactless communication by an electric field coupling action using a coupler electrode arranged near said antenna coil, wherein said second wireless processing section includes a communication circuit part that performs processing of a high-frequency signal for data transmission, a transmission path of said high-frequency signal, a ground, a coupler electrode that includes an upper flat part that acts as an electrode, a support that supports said upper flat part so that said upper flat part faces said ground and is separately placed from said ground at a height only enough to ignore the wavelength of said high-frequency signal, while having a flexible portion which is elastically deformable in the direction of said height, and a connecting portion where the other end of said support is connected to said transmission path, and a resonance part that enlarges a current flowing into said coupler electrode through said transmission path, wherein a micro dipole is formed of a line segment that connects the center of an electric charge accumulated in said upper flat part of said coupler electrode and the center of a mirror charge accumulated in said ground is formed, and said high-frequency signal is transmitted to a communication partner oppositely arranged at an angle θ
of substantially zero with respect to the direction of said mirco dipole.
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Specification