Provided is an antenna for receiving radio waves including frequencies in the L6 band unique to QZSS to realize accurate positioning by QZSS. A substrate-type antenna 1 comprises an arcuate antenna element 20 including a long arcuate antenna element 22 and a short arcuate antenna element 24, each of which includes an integral antenna element compatible with three frequency bands and a single antenna element compatible with one frequency band and arranged with a space from the integral antenna element. Each of the integral antenna element and the single antenna element extends from an outer peripheral part of the arcuate antenna element toward an inner peripheral part thereof. The substrate-type antenna 1 further comprises a plurality of connection units 34 connected to the long arcuate antenna element 22 and the short arcuate antenna element 24, respectively, and a coupler 30 to which the plurality of connection units 34 is coupled.

An electronic device having a 5G antenna, according to the present invention, is provided. The electronic device comprises an antenna, which includes: a first metal pattern formed so that metal having a predetermined length and width is printed and arranged on the top of a substrate; a second metal pattern formed so that metal, which is spaced a predetermined distance from the first metal pattern and has a predetermined length and width, is printed and arranged; and a power feeding pattern formed so that a signal is coupling-fed to the first metal pattern and the second metal pattern.

A multi-resonant, electrically-small antenna having a first helical arm and a second helical arm. The first helical arm encircles a first central axis and includes a proximal end. A radius between the first helical arm and the first central axis decreases in a distal direction away from the proximal end of the first helical arm. The second helical arm is nested in the first helical arm and encircles a second central axis. The second helical arm also includes a proximal end. A radius between the second helical arm and the second central axis decreases in a distal direction away from the proximal end of the second helical arm.

An antenna including a substrate; top and bottom grounded conductive layers formed on respective larger faces of the substrate; an antenna feed coupled to at least one of the top and bottom grounded conductive layers, and configured to feed radio signals to the antenna; and at least one conductive wall formed to the top and bottom grounded conductive layers, and configured to form a short-circuit between the top and bottom grounded conductive layers, wherein the substrate and the at least one conductive wall forms a plurality of antenna cavities configured to operate at specific, respective frequencies, and each of the plurality of antenna cavities comprises at least two sides not covered by a conductive layer.

A patch antenna device configured to receive a radio communication signal includes a circuit board, a patch antenna, and a parasitic element. The circuit board has a signal processing circuit placed thereon. The patch antenna is stacked on the circuit board and has a quadrangular radiation element. The parasitic element is disposed above the patch antenna so as to improve antenna gain characteristics of the patch antenna and configured such that the length of the upper side of the parasitic element is shorter than the width in a plan view of the radiation element of the patch antenna and that the length between the upper and lower sides of the parasitic element is longer than the length between the upper and lower sides of the radiation element of the patch antenna.

An antenna device, an array of antenna devices, and a base station having an antenna device. A radiator is configured to radiate an electromagnetic signal in a direction parallel to a radiating axis of the antenna device. The radiator has a substantially planar shape perpendicular to the radiating axis and a resonant structure adjacent to the radiator. The resonant structure has a substantially planar shape parallel to the radiator, wherein the radiator is configured to radiate the electromagnetic signal in a first frequency band and the resonant structure is configured to have a resonant frequency within the first frequency band.

Embodiments of the present invention pertain to the field of communications technologies and disclose a multi-band antenna and a communications device. The multi-band antenna includes a reflection panel, at least one high-frequency unit, and at least one low-frequency unit. Each high-frequency unit includes a balun structure, a coupling structure, and a radiation arm structure. The balun structure includes two balun sub-structures, the coupling structure includes two coupling sub-structures, and the radiation arm structure includes two radiation arms. The high-frequency unit and the low-frequency unit are disposed on the reflection panel. Each coupling sub-structure is separately electrically connected to one balun sub-structure and one radiation arm. The coupling sub-structure is configured to transmit a signal whose frequency is higher than a preset threshold, and block a signal whose frequency is lower than the preset threshold.

An electronic modulating device is provided. The electronic modulating device includes a substrate, a plurality of first modulating electrodes disposed on the substrate, and a plurality of second modulating electrodes disposed on the substrate. The area of one of the first modulating electrodes is greater than the area of one of the second modulating electrodes. The ratio of the number of first modulating electrodes to the number of second modulating electrodes is in a range from 0.5 to 2.0.

A radar measuring device with an array antenna for topology detection and a level measurement antenna for fill level measurement. The array antenna is arranged around the level measurement antenna.

An antenna includes a first radiator, a second radiator, and a feed. The first radiator has a first feed point and a first ground point. The second radiator has a second feed point and a second ground point. The antenna further includes a connection line. The connection line has a first end and a second end that are opposite to each other. The first end is coupled to the first feed point of the first radiator, and the second end is coupled to the second feed point of the second radiator. A feeding point is disposed on the connection line, and the feeding point is coupled to the feed.