Abstract: An antenna module, a metamaterial structure and an electronic device are provided. The electronic device includes a housing, a glass material layer and an antenna module. The antenna module includes a substrate, at least one radiating element and a metamaterial structure. The metamaterial structure includes a metamaterial substrate, a plurality of first metal conductors, and a plurality of second metal conductors. The first metal conductors are disposed on the first surface of the metamaterial substrate and are spaced apart at intervals from each other, and the second metal conductors are disposed on the second surface of the metamaterial substrate and are spaced apart at intervals from each other. The first metal conductors respectively correspond to the second metal conductors. Shapes of the first metal conductors are different from shapes of the second metal conductors.

Abstract: A communication device includes a dielectric substrate, an antenna layer, a metamaterial layer, a first absorber element, a second absorber element, and a third absorber element. The dielectric substrate has a first surface and a second surface which are opposite to each other. The antenna layer is disposed on the first surface of the dielectric substrate. The metamaterial layer is adjacent to the antenna layer. The antenna layer and the metamaterial layer are both positioned between the first absorber element and the second absorber element. The third absorber element is disposed on the second surface of the dielectric substrate.

Abstract: An antenna device includes a first dielectric substrate made of a high dielectric coefficient material, a plurality of first contact pads fastened on a periphery of a top surface of the first dielectric substrate, a plurality of second dielectric substrates made of the high dielectric coefficient material, and a plurality of Yagi-Uda antennae respectively disposed on top surfaces of the second dielectric substrates. The second dielectric substrates are fastened on the first dielectric substrate. Each of the Yagi-Uda antennae has a drive, and a plurality of directors disposed in an outside position of the drive and spaced from an outer side of the drive. The directors are shorter than the drive, and the directors are arranged along a direction of being gradually away from the drive and gradually become shorter. An inner side of the drive defines a signal feed point.

Abstract: A multi-band antenna includes a base portion, a high-frequency radiating portion, a feeding portion and a low-frequency radiating portion. The base portion has a first transverse edge and a second transverse edge parallel to and opposite to the first transverse edge. The high-frequency radiating portion includes an inductance portion, a first extending portion, a second extending portion and a third extending portion. One side of a bottom of the feeding portion defines a feeding point. The low-frequency radiating portion has a bending portion, a coupling portion and an auxiliary portion. The base portion, the high-frequency radiating portion, the coupling portion and the auxiliary portion are coplanar. The base portion, the high-frequency radiating portion, the coupling portion and the auxiliary portion together with the bending portion are located in two perpendicular planes.

Abstract: A multi-band antenna includes a substrate and a conductive layer. The conductive layer covered on a top surface of the substrate includes a ground element, a first radiating element and a second radiating element. The ground element is connected with a bottom side edge of the substrate. The first radiating element is connected with one end of a lower top edge of the ground element. The first radiating element includes a connection portion, a first coupling portion, a first radiating portion and a first inductance portion. The second radiating element is connected with the other end of the lower top edge of the ground element. The second radiating element includes a second inductance portion, a second coupling portion, a second radiating portion and a third radiating portion.

Abstract: An antenna device includes a first dielectric substrate made of a high dielectric coefficient material, a plurality of first contact pads fastened on a periphery of a top surface of the first dielectric substrate, a plurality of second dielectric substrates made of the high dielectric coefficient material, and a plurality of Yagi-Uda antennae respectively disposed on top surfaces of the second dielectric substrates. The second dielectric substrates are fastened on the first dielectric substrate. Each of the Yagi-Uda antennae has a drive, and a plurality of directors disposed in an outside position of the drive and spaced from an outer side of the drive. The directors are shorter than the drive, and the directors are arranged along a direction of being gradually away from the drive and gradually become shorter. An inner side of the drive defines a signal feed point.

Abstract: A multi-band antenna includes a base portion, a high-frequency radiating portion, a feeding portion and a low-frequency radiating portion. The base portion has a first transverse edge and a second transverse edge parallel to and opposite to the first transverse edge. The high-frequency radiating portion includes an inductance portion, a first extending portion, a second extending portion and a third extending portion. One side of a bottom of the feeding portion defines a feeding point. The low-frequency radiating portion has a bending portion, a coupling portion and an auxiliary portion. The base portion, the high-frequency radiating portion, the coupling portion and the auxiliary portion are coplanar. The base portion, the high-frequency radiating portion, the coupling portion and the auxiliary portion together with the bending portion are located in two perpendicular planes.

Abstract: A multi-band antenna includes a base plate of which a feeding portion, a connection section and a ground portion are connected with rear, front and left edges of the base plate respectively, a first radiating element connected with a right edge of the base plate and coplanar with the base plate, a second radiating element coplanar with the base plate and the connection section and connected with an upper portion of a left rim of the connection section with a free end thereof adjacent to the ground portion, and a third radiating element connected with a lower end of the left rim of the connection section. Wherein the second radiating element is apart located between the ground portion and the third radiating element.

Abstract: A multi-band antenna includes a base portion, a substantially lying U-shaped first radiating portion, a substantially lying L-shaped second radiating portion and a third radiating portion. A rear edge of the base portion extends rearward to form a ground portion with a ground point being defined thereon. A top of the base portion defines a feeding point. The first radiating portion of which one end is connected with a first side edge of the base portion and the mouth faces to the first side edge of the base portion. The second radiating portion is connected with a second side edge of the base portion. The third radiating portion tortuously extends downward from a front edge of the base portion, then extends transversely, and further circuitously extends rearward to be located substantially near under a free arm of the second radiating portion.

Abstract: A multi-band antenna is disclosed and comprises a substrate and an electro-conductive layer. The electro-conductive layer comprises: a feed-in terminal; a ground terminal; a connecting portion extended forward from the feed-in terminal; a first high frequency portion extended leftward from the connecting portion for controlling a third frequency band; a low frequency portion bent and extended leftward from the connecting portion for controlling a first frequency band and a second frequency band; and a second high frequency portion extended rightward from the connecting portion for controlling a fourth frequency band. Furthermore, the second high frequency portion is connected with the ground terminal and wider than the first high frequency portion; and harmonic oscillations are generated between the second and first high frequency portions to control a fifth frequency band. Hence, the multi-band antenna of the present invention can meet the requirement of various communication standards.

Abstract: A multi-band antenna includes a substrate and a conductive layer. The conductive layer covered on a top surface of the substrate includes a ground element, a first radiating element and a second radiating element. The ground element is connected with a bottom side edge of the substrate. The first radiating element is connected with one end of a lower top edge of the ground element. The first radiating element includes a connection portion, a first coupling portion, a first radiating portion and a first inductance portion. The second radiating element is connected with the other end of the lower top edge of the ground element. The second radiating element includes a second inductance portion, a second coupling portion, a second radiating portion and a third radiating portion.

Abstract: Provided is a multiband printed antenna for receiving and emitting multiple electromagnetic wave signals of different bands. The multiband printed antenna includes a substrate and a conductive layer formed on a positive surface of the substrate. The conductive layer includes a grounding portion, a plurality of radiating portions controlling different bands and a single feeder point used to transmit electromagnetic wave signals. The multiband printed antenna of the present invention can separately control multiple radiating portions, which have different bands and are together formed on one same substrate, to emit the electromagnetic wave signals at one same feeder point, thereby realizing the object of the single printed antenna controlling multiple bands and greatly reducing the manufacture cost to satisfy the demand of 4G communication industry.

Abstract: A multi-band antenna includes a base portion, a substantially lying U-shaped first radiating portion, a substantially lying L-shaped second radiating portion and a third radiating portion. A rear edge of the base portion extends rearward to form a ground portion with a ground point being defined thereon. A top of the base portion defines a feeding point. The first radiating portion of which one end is connected with a first side edge of the base portion and the mouth faces to the first side edge of the base portion. The second radiating portion is connected with a second side edge of the base portion. The third radiating portion tortuously extends downward from a front edge of the base portion, then extends transversely, and further circuitously extends rearward to be located substantially near under a free arm of the second radiating portion.

Abstract: A multi-band antenna includes a base plate of which a feeding portion, a connection section and a ground portion are connected with rear, front and left edges of the base plate respectively, a first radiating element connected with a right edge of the base plate and coplanar with the base plate, a second radiating element coplanar with the base plate and the connection section and connected with an upper portion of a left rim of the connection section with a free end thereof adjacent to the ground portion, and a third radiating element connected with a lower end of the left rim of the connection section. Wherein the second radiating element is apart located between the ground portion and the third radiating element.

Abstract: A multi-band antenna disposed on a circuit board includes a feeding portion located on a left side of the circuit board and adjacent to a front edge of the circuit board. A base slice is located on the left side of the circuit board and connected with a rear end of the feeding portion. A high frequency radiating portion is located on the left side of the circuit board and connected with a left end of the base slice. A low frequency radiating portion is connected with a rear end of the base slice and zigzag meanders opposite to the high frequency radiating portion. A mid-frequency radiating portion is connected with the rear end of the base slice and then straightly extends towards a right edge of the circuit board.

Abstract: A multi-band antenna mounted on a circuit board includes a ground plate perpendicularly connected to one side edge of the circuit board, a radiating plate perpendicularly connected to the other side edge of the circuit board, and a planar antenna element includes a high frequency radiating portion, a lower frequency radiating portion, a base plate, a capacitance portion and an inductance portion. The high frequency radiating portion and the lower frequency radiating portion are located at two ends of the circuit board, respectively, and both connected to the radiating plate. The base plate is connected to the radiating plate and located between the high and lower frequency radiating portions. The capacitance portion is parallel with the ground plate to form a capacitive coupling therebetween. The inductance portion is soldered to the ground plate. A simulation inductance is formed by the inductance portion.

Abstract: A dual-band antenna is provided and has a feed base portion, a low-frequency radiation portion and a high-frequency radiation portion. A first end of the feed base portion is bent and extended to form the low-frequency radiation portion which has a first transverse portion, a first longitudinal portion, a second transverse portion, a second longitudinal portion and a third transverse portion. A second end of the feed base portion is bent and extended to form the high-frequency radiation portion which has a third longitudinal portion, a fourth transverse portion and a fourth longitudinal portion. The feed base portion is further bent and extended to form a feed end. The dual-band antenna of the present invention has a roundabout bent structure, so that the dual-band antenna has a better effect for transmitting and receiving electro-magnetic signals of two frequency bands of 900 MHz and 1800 MHz.

Abstract: The present invention discloses an antenna impedance matching method which is used for adjusting an impedance of an antenna to match an impedance of a radio frequency (RF) integrated circuit (IC). The method comprises the following steps of: (1) providing an antenna matching IC; (2) obtaining a used frequency band of the RF IC, so as to obtain a frequency band signal; (3) adjusting an impedance of the matching IC according to the band signal, so that the antenna achieves impedance matching. In summary, the present invention uses the matching IC to instead of a traditional matching circuit, and according to the band signal of the RF IC to adjust and match the impedance of the IC, so as to change the resonance and impedance of the antenna, and to achieve the impedance matching.

Abstract: A printed antenna is disclosed. The printed antenna includes a substrate and an electrically conductive layer formed on a top surface of the substrate. The electrically conductive layer comprises a first radiation part, a second radiation part, a first feed part, a second feed part, and a grounding part. The first radiation part is connected with the first feed part. The second radiation part is connected with the second feed part. The grounding part is connected with the first radiation part and the second radiation part. In the printed antenna of the present invention, the first feed part and the second feed part feed into two electromagnetic signals so as to implement a dual antenna function. Furthermore, the arrangement is reasonable, and the manufacturing cost is low.

Abstract: The present invention discloses a broadband printed antenna used in a notebook for receiving and emitting electromagnetic wave signals. The broadband printed antenna includes a substrate and a conductive layer formed on a front face of the substrate. The conductive layer includes a feeding portion for transmitting electromagnetic wave signals, a radiation portion extending leftward along an end of the feeding porting, a short portion being bent and spiral and extending rightward along the end of the feeding portion, and a ground portion extending along the short portion. The present invention includes the short portion being bent and spiral at the right side of the feeding portion for compensating a band of the notebook so that the band can reach 2.3 GHz-2.7 GHz, thereby meets various requirements of communication standards.