摘要:
A disclosed antenna device includes a ground plate, a feeding unit that extends from the ground plate at a predetermined angle for a predetermined length, the feeding unit being prepared perpendicular to the ground plate, and a non-conductive section formed in the ground plate. The shape of the non-conductive section is adjusted according to a desired frequency characteristic.
摘要:
A disclosed antenna device includes a plate-like ground plate, and a feeding unit that extends from the ground plate for a predetermined length at a predetermined angle. The feeding unit is constituted by a half-body, which is a body, such as a circular cone, halved by a plane perpendicular to the ground plate, and the feeding unit is prepared perpendicular to the ground plate.
摘要:
A biosignal detecting apparatus is disclosed. The biosignal detecting apparatus includes a pair of detecting electrodes which is attached to a human body for detecting a biosignal from the human body, a biosignal detecting circuit which receives the biosignal detected by the detecting electrodes and processes the detected biosignal, a transmitting electrode which is attached to the human body for transmitting the biosignal processed by the biosignal detecting circuit via the human body to an external apparatus and for transmitting a radio wave generated by a circuit in the biosignal detecting apparatus, and a circuit connected to one of the detecting electrodes which circuit receives the radio wave transmitted from the human body via the transmitting electrode and executes impedance matching between the biosignal detecting apparatus and the human body based on the received radio wave transmitted from the human body via the transmitting electrode.
摘要:
A communication device is disclosed that includes an antenna apparatus including a feeding portion, a looped antenna element connected to the feeding portion, and a resistor inserted into the looped antenna element, and a communication circuit configured to process data that is transmitted and received via the antenna apparatus.
摘要:
A communication device is disclosed that includes an antenna apparatus including: a feeding portion, a looped antenna element connected to the feeding portion, and a resistor inserted into the looped antenna element; and a communication circuit configured to process data that is transmitted and received via the antenna apparatus.
摘要:
A biosignal detecting apparatus is disclosed. The biosignal detecting apparatus includes a pair of detecting electrodes which is attached to a human body for detecting a biosignal from the human body, a biosignal detecting circuit which receives the biosignal detected by the detecting electrodes and processes the detected biosignal, a transmitting electrode which is attached to the human body for transmitting the biosignal processed by the biosignal detecting circuit via the human body to an external apparatus and for transmitting a radio wave generated by a circuit in the biosignal detecting apparatus, and a circuit connected to one of the detecting electrodes which circuit receives the radio wave transmitted from the human body via the transmitting electrode and executes impedance matching between the biosignal detecting apparatus and the human body based on the received radio wave transmitted from the human body via the transmitting electrode.
摘要:
A disclosed antenna device includes a plate-like ground plate, and a feeding unit that extends from the ground plate for a predetermined length at a predetermined angle. The feeding unit is constituted by a half-body, which is a body, such as a circular cone, halved by a plane perpendicular to the ground plate, and the feeding unit is prepared perpendicular to the ground plate.
摘要:
A communication system for transmitting and receiving a send data item is disclosed that comprises a transmitting device and a receiving device. The transmitting device includes a data generating unit to generate a data item by modulating the send data item, an impulse generating unit to generate an impulse corresponding to the generated data item, a transmitting channel selecting unit to allow a frequency component corresponding to a transmitting channel to pass through while the impulse attempts to pass therethrough, and a transmitting unit to transmit the impulse as a signal. The receiving device includes a receiving unit to receive the signal, a receiving channel selecting unit to allow the frequency component corresponding to the transmitting channel to pass through while the signal attempts to pass therethrough, and a data restoring unit to extract the impulse from the signal to restore the send data item according to the extracted impulse.
摘要:
A communication system for transmitting and receiving a send data item is disclosed that comprises a transmitting device and a receiving device. The transmitting device includes a data generating unit to generate a data item by modulating the send data item, an impulse generating unit to generate an impulse corresponding to the generated data item, a transmitting channel selecting unit to allow a frequency component corresponding to a transmitting channel to pass through while the impulse attempts to pass therethrough, and a transmitting unit to transmit the impulse as a signal. The receiving device includes a receiving unit to receive the signal, a receiving channel selecting unit to allow the frequency component corresponding to the transmitting channel to pass through while the signal attempts to pass therethrough, and a data restoring unit to extract the impulse from the signal to restore the send data item according to the extracted impulse.
摘要:
An antenna device includes an antenna element to be fed with electric power from an external power supply and a ground element to be coupled to the antenna element. The antenna element and the ground element are formed of a conductive film and arranged to define a rectangular region in a plan view with at least one gap between the antenna element and the ground element. The antenna element has a shape of one of a polygon, a circle, and a part of the polygon or the circle. The antenna element includes a feeding part in its portion close to the ground element.