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.

The present invention relates to a cavity filter for an antenna, specifically to a cavity filter comprising: a filter body having a plurality of cavities which are open at one side and are divided by a partition wall; a resonance bar installed at each of the plurality of cavities; a resonance bar boss into which a part of the resonance bar is inserted and which is provided such that the resonance bar is installed at the cavity; and a tolerance management stopper part which is disposed between an inner peripheral surface of the resonance bar boss and an outer peripheral surface of the resonance bar to perform stop-and-moving functions in an insertion direction of the resonance bar in designing the tolerance of the cavity, thereby providing the advantage of improving a production yield of an entire product.

The present invention relates to a cavity filter for an antenna, specifically to a cavity filter comprising: a filter body having a plurality of cavities which are open at one side and are divided by a partition wall; a resonance bar installed at each of the plurality of cavities; a resonance bar boss into which a part of the resonance bar is inserted and which is provided such that the resonance bar is installed at the cavity; and a tolerance management stopper part which is disposed between an inner peripheral surface of the resonance bar boss and an outer peripheral surface of the resonance bar to perform stop-and-moving functions in an insertion direction of the resonance bar in designing the tolerance of the cavity, thereby providing the advantage of improving a production yield of an entire product.

Described are electronic devices, and specifically provides a multi-frequency slot antenna, a terminal device and an antenna resonance frequency adjustment method. The antenna is applied to a terminal device, and the terminal device includes a metal casing. According to an example, the antenna includes a slot provided in the metal casing, the slot having a first end and a second end opposite to each other in a length direction; a feed terminal across inside of the slot and located between the first end and the second end; and a capacitor provided in the slot, two electrodes of the capacitor being respectively connected with two sides of the slot in a width direction. Furthermore, in the length direction, the capacitor is located at a position where voltages are not zero at original values of multiple orders of resonance frequencies of the antenna when the capacitor is not provided in the slot. In this way, an operating frequency of the antenna includes multiple orders of resonance frequencies.

An antenna system mounted in a vehicle, according to the present invention, comprises: a radiator for transferring, through an upper opening, a signal which is applied through a lower opening; a coupling patch disposed on an upper substrate so as to be spaced apart from the upper opening by a predetermined interval so as to enable the coupling of the signal which has been transferred through the upper opening; and a first antenna connected to the coupling patch so as to make surface contact therewith, and comprising a shorting bar for connecting a ground layer of a lower substrate. The antenna system may further comprise, apart from the first antenna, a second antenna disposed in the antenna system.

An antenna system mounted in a vehicle, according to the present invention, comprises: a radiator for transferring, through an upper opening, a signal which is applied through a lower opening; a coupling patch disposed on an upper substrate so as to be spaced apart from the upper opening by a predetermined interval so as to enable the coupling of the signal which has been transferred through the upper opening; and a first antenna connected to the coupling patch so as to make surface contact therewith, and comprising a shorting bar for connecting a ground layer of a lower substrate. The antenna system may further comprise, apart from the first antenna, a second antenna disposed in the antenna system.

Presented herein is an electronic device comprising a Printed Circuit Board (PCB) including a first circuit board plane including a plurality of first patch antenna elements and a second circuit board plane including a plurality of second patch antenna elements, a communication module that transmits and receives a signal of a first frequency band using the plurality of first patch antenna elements, and transmits and receives a signal of a second frequency band higher than the first frequency band using the plurality of second patch antenna elements, a processor connected to the communication module, wherein central points of the plurality of first patch antenna elements are spaced apart from one another to have a first distance and central points of the plurality of second patch antenna elements are spaced apart from one another to have a second distance shorter than the first distance, and wherein the plurality of second patch antenna elements are arranged such that the central points of the plurality of second patch antenna elements are disposed to be closer to a central axis connecting a first central point that is a center of gravity of the first circuit board plane and a second central point that is a center of gravity of the second circuit board plane in a direction passing through the printed circuit board from a first surface to a second surface of the printed circuit board, than central points of the plurality of first patch antenna elements.

Presented herein is an electronic device comprising a Printed Circuit Board (PCB) including a first circuit board plane including a plurality of first patch antenna elements and a second circuit board plane including a plurality of second patch antenna elements, a communication module that transmits and receives a signal of a first frequency band using the plurality of first patch antenna elements, and transmits and receives a signal of a second frequency band higher than the first frequency band using the plurality of second patch antenna elements, a processor connected to the communication module, wherein central points of the plurality of first patch antenna elements are spaced apart from one another to have a first distance and central points of the plurality of second patch antenna elements are spaced apart from one another to have a second distance shorter than the first distance, and wherein the plurality of second patch antenna elements are arranged such that the central points of the plurality of second patch antenna elements are disposed to be closer to a central axis connecting a first central point that is a center of gravity of the first circuit board plane and a second central point that is a center of gravity of the second circuit board plane in a direction passing through the printed circuit board from a first surface to a second surface of the printed circuit board, than central points of the plurality of first patch antenna elements.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.