Abstract: A wide-band antenna (1) for a wireless communication device has a ground plane (14), a first radiating portion (11), a second radiating portion (12), and a third radiating portion (13). The first and second radiating portions both extend from a same edge of the ground plane and together constitute a first frequency resonant structure. The third radiating portion extends from a proximal end of the second radiating portion. The second and third radiating portions together constitute a second frequency resonant structure.

Abstract: A multi-band antenna (1) includes a ground patch (10), a first radiating patch (21), a second radiating patch (22), a connecting patch (23) connecting the first and second radiating patches with the ground patch, and a feeder cable (40). The ground patch, the connecting patch, the second radiating patch and the feeder cable form a planar inverted-F antenna (PIFA), and the first radiating patch, the connecting patch, the ground patch and the feeder cable form a loop antenna.

Abstract: A multi-band antenna structure (1) includes a ground plane (10) and a plurality of radiating elements (11, 12, 13, 14, 15). Each radiating element has a radiating portion and a connecting portion connected with the corresponding radiating portion. The first and second connecting portions (111, 121) are respectively connected to the ground plane, and a first resonance slot (21) is formed between the first and second radiating portions (110, 120). The third, fourth, and fifth connecting portions (131, 141, 151) are respectively connected to the second radiating portion. A second resonance slot (22) is formed between the third and fourth radiating portion (130, 140), and a third resonance slot (23) is formed between the third and fifth radiating portion (130, 150).

Abstract: A multi-band antenna (1) for an electronic device comprises an insulative substrate (30), a feeder cable (40) and a conductive element disposed on the substrate including a radiating portion (21), a first connecting portion (22), a second connecting portion (23) and a ground portion (10). The radiating portion includes a plurality of radiating segments (211-218). The first and second connecting portions connect the ground portion with the radiating portion. A part of the radiating portion, the second connecting portion, the ground portion and the feeder cable form a planar loop antenna. The radiating portion, the first connecting portion, the ground portion and the feeder cable form a planar inverted-F antenna.

Abstract: A multi-band antenna (1) for an electronic device comprises an insulative substrate (30), a feeder cable (40) and a conductive element disposed on the substrate including a radiating portion (21), a first connecting portion (22), a second connecting portion (23) and a ground portion (10). The radiating portion includes a plurality of radiating segments (211-218). The first and second connecting portions connect the ground portion with the radiating portion. A part of the radiating portion, the second connecting portion, the ground portion and the feeder cable form a planar loop antenna. The radiating portion, the first connecting portion, the ground portion and the feeder cable form a planar inverted-F antenna.

Abstract: A multi-band antenna includes a first pole (2) and a second pole (3) connecting with the first pole. The first and second poles are both made of metal sheets. The first pole is rectangular in shape. The second pole includes a first section (31), a second section (32) and a third section (33). The second and third sections connect to the first section. The first, second and third sections integrally form a fork-shaped structure and each section has a different length. The first, second and third sections each radiate at a different frequency. A feeder device (5) includes a coaxial cable which electrically connects with the first pole and the second pole for feeding the antenna.

Abstract: A microstrip antenna structure (1) for used in broadband, multi-frequency range applications includes a dipole antenna (2) comprising two dipole elements (21, 22), a dielectric substrate (3) on which the dipole elements are symmetrically disposed, and a feeding system (5) connected with the dipole antenna. Each dipole element comprises a triangular patch (211 or 221) and a V-shaped tentacle patch (212 or 222) extending from the triangular patch. The two dipole elements together form a butterfly structure antenna. This butterfly structure allows the dipole antenna to operate efficiently in a broadband range in the 2.4-2.5 GHz, 5.15-5.35 GHz and 5.45-5.75 GHz frequency bands.

Abstract: A dual band slot antenna (1) for an electronic device includes an antenna body (10) with elongated first and second slots (11, 12) defined therein and a coaxial feeder cable (20) having a conductive inner core wire (21) and a conductive outer shield (22). The inner core wire is electrically connected to the antenna body at an outer side of the first slot 11 and the outer shield is electrically connected to the antenna body at an opposite, outer side of the second slot. The coaxial cable acts as a common feed line of the first and second slots.

Abstract: A dual band microstrip antenna (1) made by a method of the present invention includes a dielectric substrate (11), a ground plane layer (10) attached to a bottom surface (111) of the substrate, a first and second conductive patches (21, 22) separately elevated above and parallel to a top surface (110) of the substrate, a first and second conductive posts (23, 24) electrically connecting the first and second conductive patches respectively with the ground plane layer and a first and second coaxial feeder cables (25, 26). A method for making the dual band microstrip antenna includes adjusting the height of the first and second conductive posts to achieve a good performance of the dual band microstrip antenna.

Abstract: A dual band slot antenna (1) for an electronic device includes an antenna body (10) with elongated first and second slots (11, 12) defined therein and a coaxial feeder cable (20) having a conductive inner core wire (21) and a conductive outer shield (22). The inner core wire is electrically connected to the antenna body at an outer side of the first slot 11 and the outer shield is electrically connected to the antenna body at an opposite, outer side of the second slot. The coaxial cable acts as a common feed line of the first and second slots.

Abstract: An RF connector assembly comprises a receptacle (10), a complementary plug (20), and a printed circuit board (PCB) (30). The receptacle includes a substrate (12), an outer contact (14), a central contact (16), and three solder pads (18, 19) disposed on the substrate. A through hole (36) is defined in a middle of the PCB. The outer and central contacts are accommodated in the through hole. The solder pads are soldered to a bottom face of the PCB. The plug is electrically connected with the receptacle within the through hole. Thus an overall profile of the RF connector assembly above a top face of the PCB is reduced in height.

Abstract: An inverted-F dipole antenna (1) for an electronic device includes a conductive antenna body (12), an antenna base (11), a connector (14) providing an electrical interface to an RF circuitry, and a cable (13) connecting the antenna body to the connector. The antenna body includes a first and second arms (121), (122) and a U-shaped portion (123) connecting the first and second arms. The antenna base includes an insulative board (111) and a metal sheet (112) attached to one surface of the board. The U-shaped portion of the antenna body is attached to a second surface of the board opposite to the metal sheet. The first arm serves as a radiation device.

Abstract: An inverted-F dipole antenna (1) for an electronic device includes a conductive antenna body (12), an antenna base (11), a connector (14) providing an electrical interface to an RF circuitry, and a cable (13) connecting the antenna body to the connector. The antenna body includes a first and second arms (121), (122) and a U-shaped portion (123) connecting the first and second arms. The antenna base includes an insulative board (111) and a metal sheet (112) attached to one surface of the board. The U-shaped portion of the antenna body is attached to a second surface of the board opposite to the metal sheet. The first arm serves as a radiation device.

Abstract: A dipole antenna for selecting an antenna polarization plane of the strongest polarization energy includes at least two dipole antenna elements (1, 2) arranged perpendicularly to each other to form a single antenna, a PCB (3), and two feeding lines (4). Each dipole antenna element includes two T-shaped dipole arms (11, 12). This structure makes use of two planes of the XZ-plane, XY-plane and YZ-plane, and also makes the dipole antenna more compact. The antenna obtains optimum polarization energy by selecting the strongest energy plane. This achieves maximized radiation efficiency under any particular orientation of the dipole antenna. The strongest energy plane is selected by controlled switching, by means of dual-fed signal mode. The dipole arms of each dipole antenna element are disposed on opposite surfaces (31, 32) of the PCB, to minimize interference.

Abstract: A PCB dipole antenna (1) for placing in an electronic device includes a first dipole antenna element (2), a second dipole antenna element (3), a printed circuit board (4), a first feeder apparatus (71) and a second feeder apparatus (72). The first dipole antenna element is perpendicular to the second dipole antenna element. Each first and second dipole antenna element includes two dipole cells respectively disposed on opposite surfaces of the printed circuit board. Each first and second dipole antenna element is fed through the first and second feeder apparatuses respectively. Switching of dual polarized radiation of the PCB dipole antenna is carried out under the control of an external device. This makes full use of two of the three radiation planes, and provides maximum diversity radiation efficiency.

Abstract: A dipole antenna for selecting an antenna polarization plane of the strongest polarization energy includes at least two dipole antenna elements (1, 2) arranged perpendicularly to each other to form a single antenna, a PCB (3), and two feeding lines (4). Each dipole antenna element includes two T-shaped dipole arms (11, 12). This structure makes use of two planes of the XZ-plane, XY-plane and YZ-plane, and also makes the dipole antenna more compact. The antenna obtains optimum polarization energy by selecting the strongest energy plane. This achieves maximized radiation efficiency under any particular orientation of the dipole antenna. The strongest energy plane is selected by controlled switching, by means of dual-fed signal mode. The dipole arms of each dipole antenna element are disposed on opposite surfaces (31, 32) of the PCB, to minimize interference.

Abstract: A PCB dipole antenna (1) for placing in an electronic device includes a first dipole antenna element (2), a second dipole antenna element (3), a printed circuit board (4), a first feeder apparatus (71) and a second feeder apparatus (72). The first dipole antenna element is perpendicular to the second dipole antenna element. Each first and second dipole antenna element includes two dipole cells respectively disposed on opposite surfaces of the printed circuit board. Each first and second dipole antenna element is fed through the first and second feeder apparatuses respectively. Switching of dual polarized radiation of the PCB dipole antenna is carried out under the control of an external device. This makes full use of two of the three radiation planes, and provides maximum diversity radiation efficiency.

Abstract: A slot antenna assembly for an electronic device comprises an arcuate slot antenna (1) and a coaxial feeder cable (3). The slot antenna includes a metal foil (2) which is bent diagonally to form an arcuate surface (20). The slot antenna defines an elongated narrow slot (21) therein. The bent metal foil enlarges radiational scope, to achieve omni-directional radiation as well as increased radiation electric field intensity.

Abstract: A stripline PCB dipole antenna for use in an electronic device includes a substrate (3), a first dipole antenna (1), a second dipole antenna (2), a first feeder apparatus (41), and a second feeder apparatus (42). The first and second dipole antennas are generally T-shaped, are disposed on opposite surfaces of the substrate, are perpendicular to each other, and are fed through the first and second feeder apparatuses respectively. The first and second feeder apparatuses feed the antennas near respective edges of the substrate, to reduce any adverse influences that their wiring paths may have on the stripline PCB dipole antenna. The stripline PCB dipole antenna utilizes a switch mechanism of dual polarized radiation to switch between two of the three radiation planes, namely the XY-plane, the XZ-plane and the YZ-plane. The stripline PCB dipole antenna thus achieves optimum diversity reception efficiency under the control of an external device.

Abstract: A loop antenna assembly (2) for an electronic device includes a primary assembly (21) and an assistant assembly (22) mounted perpendicular to the primary assembly. The primary assembly includes a primary printed circuit board (PCB) (210) with a planar, monopole antenna in the form of a first circuit trace (211) fixed thereon, a feeder cable (212) and a connector (215). The assistant assembly includes an assistant PCB (220) with a second circuit trace (222) and an auxiliary wire (221), which extends parallel to the primary PCB and couples with the monopole antenna on the primary PCB to form a loop for high frequency signal transmission.