Communication system and communication apparatus
AssigneeSony Corporation
InventorTakanori Washiro
Life of this patent
Estimating the term…
Abstract
A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.
Claims14
A communication system, comprising:
- a transmitter including a transmission circuit unit configured to generate a radio-frequency signal for transmitting data and an electric-field-coupling antenna configured to transmit the radio-frequency signal as an electrostatic magnetic field;
- a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the radio-frequency signal received by the electric-field-coupling antenna;
- and
- a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss,
- wherein the surface-wave transmission line includes a plurality of separate dielectrics or magnetic bodies.
A communication apparatus, comprising:
- an apparatus casing;
- a communication circuit unit configured to output a radio-frequency signal for transmitting data, the communication circuit unit being accommodated in the apparatus casing;
- a resonating section configured to allow the radio-frequency signal output from the communication circuit unit to resonate at a desired frequency, the resonating section being accommodated in the apparatus casing;
- a coupling electrode having a central portion connected to the resonating section, the coupling electrode being accommodated in the apparatus casing;
- and
- a surface-wave transmission line disposed in front of the coupling electrode, wherein the surface-wave transmission line captures an electromagnetic field generated in the vicinity of a front side of the coupling electrode and transmits the captured electromagnetic field as a surface wave at an interior of the surface-wave transmission line.
A communication system, comprising:
- a transmitter including a transmission circuit unit configured to generate a radio-frequency signal for transmitting data and an electric-field-coupling antenna configured to transmit the radio-frequency signal as an electrostatic magnetic field;
- a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the radio-frequency signal received by the electric-field-coupling antenna;
- and
- a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss,
- wherein the surface-wave transmission line includes a dielectric with a dielectric constant ∈ greater than a dielectric constant ∈0 of air, and the dielectric ∈ constant becomes greater toward an inner part of the transmission line.
A communication system, comprising:
- a transmitter including a transmission circuit unit configured to generate a radio-frequency signal for transmitting data and an electric-field-coupling antenna configured to transmit the radio-frequency signal as an electrostatic magnetic field;
- a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the radio-frequency signal received by the electric-field-coupling antenna;
- and
- a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss,
- wherein the surface-wave transmission line includes a magnetic body with a magnetic permeability μ greater than a magnetic permeability μ0 of air, and the magnetic permeability μ becomes greater toward an inner part of the magnetic body.
Dependencies are inferred from the claim text.