Abstract: A multiband antenna is located on a substrate and comprises a first radiator, a second radiator, a feeding portion, a grounding portion and a third radiation. The first radiator transmits at least two frequency band signals. The second radiator is connected to the first radiator, and is arranged so as to surround the first radiator. The feeding portion feeds electromagnetic signals to the first radiator and the second radiator. The third radiator is located between the grounding portion and the second radiator, and electrically connected to the grounding portion.

Abstract: A multiband antenna is located on a substrate and comprises a first radiator, a second radiator, a feeding portion, a grounding portion and a third radiation. The first radiator transmits at least two frequency band signals. The second radiator is connected to the first radiator, and is arranged so as to surround the first radiator. The feeding portion feeds electromagnetic signals to the first radiator and the second radiator. The third radiator is located between the grounding portion and the second radiator, and electrically connected to the grounding portion.

Abstract: An antenna (100) disposed on a first substrate (10) and a second substrate (20) includes a feeding portion (110) and a radiating portion (120). The feeding portion (110) is disposed on a first surface of the first substrate (10), for feeding electromagnetic signals. The radiating portion (120) connected to the feeding portion (110) for transceiving electromagnetic signals includes a first radiator (121), a second radiator (122) and a third radiator (123). The first radiator (121) is disposed on the first surface and connected to the feeding portion (110). The second radiator (122) is disposed on a second surface of the second substrate (20). The third radiator (123) includes a first cylinder portion (1231) and a second cylinder portion (1232) connected to the first cylinder portion (1231). The first cylinder portion (1231) and the second cylinder portion (1232) are connected to the first radiator (121) and the second radiator (122), respectively.

Abstract: A multiband antenna is positioned on a substrate and includes a feeding portion, a grounding portion, and a radiating portion. The feeding portion is configured for feeding electromagnetic signals. The grounding portion is positioned on the substrate. The radiating portion electrically connects to the feeding portion for transceiving the electromagnetic signals. The radiation portion includes a first radiator and a second radiator. The first radiator includes a first radiating section that electrically connects to the feeding portion, a second radiating section, and a third radiating section, all of which electrically connects one another one-by-one in sequence and cooperatively defines a receiving space. The second radiator is housed in the receiving space and electrically connects to the feeding portion.

Abstract: An antenna device disposed on a substrate includes a feed part, a body part, at least one ground plane, and a matching part. The feed part is for feeding electromagnetic signals. The body part for radiating and receiving the electromagnetic signals is electronically connected to the feed part. The body part includes a first radiation part located on a first plane, a second radiation part located on a second plane, and a third radiation part located on a third plane. The second radiation part is electronically connected between the first radiation part and the third radiation part. The ground plane for grounding is disposed on one surface of the substrate. The matching part for impedance matching includes one end electronically connected to one end of the body part and one end of the feed part, and another end electronically connected to the ground plane.

Abstract: An antenna device (10) is disposed on a substrate (30), and includes a feed part (14), a holder (20), a body part (18), at least one ground plane (11), and a matching part (16). The feed part is for feeding electromagnetic signals. The body part for radiating and receiving the electromagnetic signals is electronically connected to the feed part. The body part includes at least two radiation parts electronically connected in sequence and disposed on at least two adjacent surfaces of the holder. The at least one ground plane for grounding is disposed on one side of the substrate. The matching part for impendence matching includes one end electronically connected to the body part and another end electronically connected to the ground plane. The ground plane surrounds two adjacent sides of the matching part.

Abstract: A dual channel band-pass filter (10) includes an input portion (100), a first resonator (140), a second resonator (160), and an output portion (120). The input portion is used for inputting electromagnetic signals. The first resonator is electronically connected to the input portion, and includes a first groove (146) in the vicinity of a center thereof. The second resonator is disposed parallel to the first resonator, and includes a second groove (166) in the vicinity of a center thereof. The output portion is disposed parallel to the input portion, and is electronically connected to the second resonator for outputting electromagnetic signals.

Abstract: A printed antenna includes a radiation part (10) for radiating and receiving electromagnetic signals, a feed wire (30) for feeding the electromagnetic signals to the radiation part, a matching part (20) for impedance matching, and a ground plane (40). The radiation part includes a first radiation segment (12), a second radiation segment (14), and a third radiation segment (16). The second radiation segment is electrically connected to the first radiation segment and the third radiation segment. The feed wire is electrically connected to the radiation part. The matching part is electrically connected to the radiation part and the ground plane. The second radiation segment and the matching part extend from the first radiation segment to a same side of the first radiation segment.

Abstract: A wireless communication device (10) includes an antenna (12), an electronic element (14), and a support member (18). The antenna for radiating and receiving electromagnetic signals is disposed on one side of the electronic element. The support member includes at least one support portion disposed between the antenna and the electronic element to form a space for spacing the antenna and the electronic element to enhance the radiation efficiency of the antenna.

Abstract: An antenna (100) disposed on a first substrate (10) and a second substrate (20) includes a feeding portion (110) and a radiating portion (120). The feeding portion (110) is disposed on a first surface of the first substrate (10), for feeding electromagnetic signals. The radiating portion (120) connected to the feeding portion (110) for transceiving electromagnetic signals includes a first radiator (121), a second radiator (122) and a third radiator (123). The first radiator (121) is disposed on the first surface and connected to the feeding portion (110). The second radiator (122) is disposed on a second surface of the second substrate (20). The third radiator (123) includes a first cylinder portion (1231) and a second cylinder portion (1232) connected to the first cylinder portion (1231). The first cylinder portion (1231) and the second cylinder portion (1232) are connected to the first radiator (121) and the second radiator (122), respectively.

Abstract: A dual-band filter (10) is provided. The dual-band filter includes an input line (100), a first transmission line (140), a second transmission line (160), a third transmission line (180), and an output line (120). The input line is used for inputting electromagnetic signals. The first transmission line is electronically connected to the input line. The second transmission line is arranged parallel to the first transmission line. The third transmission line is arranged between, and parallel to, the first transmission line and the second transmission line. The output line for outputting electromagnetic signals, is arranged parallel to the input line, and is electronically connected to the second transmission line.

Abstract: A low-pass filter (100) for reducing harmonic electromagnetic signals includes an input line (120), an output line (140), a transmission line (160), a first coupling line (180), and a second coupling line (190). The input line is used for input of electromagnetic signals. The output line is used for output of electromagnetic signals. The transmission line is electronically connected to the input line and the output line for capturing and transmitting electromagnetic signals. The first coupling line includes a first open end (184), and a first feed-in end (182) electronically connected to the transmission line. The second coupling line includes a second open end (194), and a second feed-in end (192) electronically connected to the second end. The first feed-in end is located opposite to the second feed-in end. The transmission line, the first coupling line, and the second coupling line collectively form a substantially G shape.

Abstract: A planar antenna (10) is disposed on a substrate (20). The planar antenna includes a grounding portion (12), a radiating body (16), a feeding portion (14), and a matching portion (18). The grounding portion is disposed on one surface of the substrate. The radiating body includes a first radiating portion (161), a second radiating portion (162), a third radiating portion (163), a fourth radiating portion (164), and a fifth radiating portion (165), which are perpendicularly connected one by one and extend according to a generally clockwise pattern. The feeding portion configured neighboring the grounding portion is electronically connected to the radiating body, for feeding electromagnetic signals to the radiating body. The matching portion is electronically connected to the grounding portion, as well as to the radiating body and the feeding portion.

Abstract: A printed antenna disposed on a substrate, includes a radiation part, a feed line, and at least one first ground part. The radiation part is for radiating and receiving electromagnetic signals, and includes a hollow portion and a pair of openings. The hollow portion is defined in the radiation part, and comprises a first slot connected to a second slot, which is connected to a third slot, wherein the second slot extends between the first slot and the third slot forming a substantially h-shaped pattern. The openings are formed at two edges of the radiation part. The feed line for feeding the electromagnetic signals to the radiation part is electrically connected to the radiation part. The at least one first ground part for grounding is disposed at one side of the feed line.

Abstract: An ultra-wideband (UWB) antenna (10), disposed on a substrate (30), includes a body (100), a feeding part (160), and at least one first ground plane (120). The body, for receiving and transmitting electromagnetic signals, includes a first radiating part (102) and a second radiating part (104) connected to the first radiating part. The body defines a gap (106) between the first radiating part and the second radiating part. The feeding line, electrically connected to the body, feeds electromagnetic signals to the body. The at least one first ground plane is disposed on a side of the feeding part, and is grounded.

Abstract: A band-pass filter (10) for reducing harmonic electromagnetic signals includes an input line (100), an output line (120), at least one first resonator (140), and at least one second resonator (160). The input line inputs electromagnetic signals. The output line outputs electromagnetic signals. The first resonator includes a first grounded end (141), electronically connected to the input line, and a first open end (142). The second resonator is disposed parallel to the first resonator. The second resonator includes a second grounded end (161), electronically connected to the output line, and a second open end (162). The first grounded end is disposed in the same direction as the second grounded end, and the first open end is disposed in the same direction as the second open end.

Abstract: A dual-band antenna (10) is provided. The dual-band antenna printed on a substrate (30) includes a transmission portion (120), a first radiator (140), a second radiator (160), a first grounded portion (180), and a second grounded portion (190). The transmission portion is used for feeding electromagnetic signals. The first radiator is electronically connected to the transmission portion for transceiving electromagnetic signals with a first frequency. The second radiator is electronically connected to the transmission portion for transceiving electromagnetic signals with a second frequency. The first grounded portion is disposed on a first surface of the substrate. The second grounded portion is disposed on a second surface of the substrate. A length of the second grounded portion is greater than that of the first grounded portion. An antenna assembly is also provided in the present invention.

Abstract: A wireless communication device (10) includes a dielectric base (50), a circuit board (70), an antenna (30), and a case (20). The dielectric base includes a first surface (508), a second surface (509) opposite to the first surface, a plating area (502), and a non-plating area (504). The plating area and the non-plating area are disposed on the first surface. The circuit board is disposed on the second surface. The antenna is plated on the plating area by a plating process. The circuit board and the dielectric base are received in the case.

Abstract: A wireless communication device (10) includes a dielectric base (50), a circuit board (70), an antenna (30), and a case (20). The dielectric base includes a first surface (508), a second surface (509) opposite to the first surface, a plating area (502), and a non-plating area (504). The plating area and the non-plating area are disposed on the first surface. The circuit board is disposed on the second surface. The antenna is plated on the plating area by a plating process. The circuit board and the dielectric base are received in the case.

Abstract: A planar antenna (10) includes a feed wire (14), a radiation part (18), a matching part (16), and a ground portion (12). The feed wire is used for feeding electromagnetic signals. The radiation part is connected to the feed wire for radiating electromagnetic signals, and the radiation part includes a first radiation part (180) and a second radiation (182) part connected to the first radiation part. The matching part is connected to the radiation part, and is used for impedance matching. The ground portion surrounds the feed wire, and is electronically connected to the matching part.