摘要:
An antenna device includes a teardrop-shaped element including a cone-shaped part and a spherical surface part geometrically combined so that the spherical surface part is in contact with the cone-shaped part on its bottom-surface side; a ground plate opposed to the apex of the cone-shaped part of the teardrop-shaped element; and a coaxial line having an inside conductor connected to the apex of the cone-shaped part of the teardrop-shaped element and having an outside conductor connected to the ground plate. The ground plate defines a surface of a metal enclosure of a device to be connected to the antenna device, the device having at least one of a transmission function and a reception function.
摘要:
An antenna apparatus is disclosed that includes a feeding portion; a looped antenna element connected to the feeding portion; and a resistor inserted into the looped antenna element.
摘要:
An antenna which can be used in different communication standards with a simple structure is disclosed. The antenna includes an antenna section which receives/transmits radio waves, input/output ports to which a signal to be input to the antenna section is input and from which a signal output from the antenna section is output, and transmission lines each of which connects the antenna section to a corresponding input/output port.
摘要:
The present invention discloses an antenna apparatus including a dielectric substrate on which an element including a conductive material pattern is formed. The dielectric substrate is a film.
摘要:
A product management system is disclosed. The product management system comprises a product detection device disposed on a product display rack and configured to detect presence/absence of a product on the product display rack, a wireless communication device disposed on the product display rack and configured to wirelessly transmit information about the presence/absence of the product detected by the product detection device, a relay device to relay communications between the wireless communication device and a network, a product management device to store and display the information transmitted from the wireless communication device via the relay device and the network, and a terminal device capable of wireless communications with the wireless communication device and configured to travel with a shopper.
摘要:
A disclosed information providing system includes a communication device; an information providing apparatus; and a mobile terminal device carried by a shopper and configured to communicate by wireless communication with the communication device and to communicate via a network with the information providing apparatus. The information providing apparatus is configured to supply information to the mobile terminal device via the network or via the communication device and the wireless communication.
摘要:
A shopping path tracking system is disclosed that comprises a terminal device, a fixed communication device, and a path management device. The fixed communication device wirelessly communicates with the terminal device, calculates a response time of the terminal device, and reports the calculated response time to the path management device. The path management device detects a position of the terminal device based on the response time reported from the fixed communication device, stores the detected position, and detects a travel path of the terminal device by tracking the stored positions.
摘要:
The present invention discloses an antenna apparatus including a dielectric substrate on which an element including a conductive material pattern is formed. The dielectric substrate is a film.
摘要:
An antenna apparatus is disclosed that includes an element member made of sheet metal, a ground member made of sheet metal, and a connection part that is integrally formed with the element member and the ground member.
摘要:
An antenna apparatus is disclosed that includes a synthetic resin case having an antenna element accommodating portion and a ground element accommodating portion, an antenna element made of punched sheet metal that is accommodated within the antenna element accommodating portion, a ground element made of punched sheet metal that is accommodated within the ground element accommodating portion and aligned with the antenna element, a surface mount coaxial connector that is mounted over an interface between the antenna element and the ground element, and a cover that covers the antenna element and the ground element.