Abstract: A near field magnetic coupling antenna may include a plurality of annularly arranged radiators and an annular conductive portion. The annular conductive portion may include a plurality of conductive segments. A first gap may be formed between any two adjacent radiators. Each conductive segment may partially overlap two adjacent radiators and any two adjacent conductive segments may be separated by a second gap. Two adjacent radiators may be associated with a feed point and a ground point, respectively, and the feed point and the ground point may be disposed in the proximity of the first gap.

Abstract: A recognition system is offered. The recognition system is for sensing a plurality of units under test of at least an object under test. The recognition system comprises a periodic guided-wave structure and a near field sensing device. The periodic guided-wave structure is disposed under the object under test and has a plurality of conductive units periodically arranged on a plane. The near field sensing device has a near field antenna and senses the plurality of units under test through detecting the near filed magnetic field. The periodic guided-wave structure confines the electromagnetic field for facilitating to determine the distance from any one of the units under test to the periodic guided-wave structure.

Abstract: A radio frequency identification (RFID) device includes a metallic antenna plate, a first metallic tube, and a second metallic tube. The metallic antenna plate has a positioning portion and defines a central axis, a first hole, and a second hole. The positioning portion is formed in the path of the central axis and surrounds the second hole. The first and second metallic tubes are disposed on the metallic antenna plate. The first and second metallic tubes each has one end disposed on the positioning portion. The first and second metallic tubes extend across the first and second holes, respectively and are welded to the metallic antenna plate. The portion of the second metallic tube that extends across the second hole is approximately perpendicular to the portion of the first metallic tube that extends across the first hole.

Abstract: The tunable antenna integrated system may include a tunable antenna module, a bias module, a direct current control module, and a RF module. The tunable antenna module may include a tunable capacitor and an antenna. The tunable capacitor may have the capacitance thereof adjusted according to an adjusting voltage. A resonant frequency of the antenna is controlled by the tunable capacitor. The bias module has a digital/analog converter for receiving a control voltage to generate the adjusting voltage, and the adjusting voltage may be outputted to the tunable capacitor with the value thereof larger than that of the control voltage. The direct current control module is connected to the bias module for outputting the control voltage to the digital/analog converter. The RF module is connected to the bias module, and a RF signal is transmitted between the tunable antenna module and the RF module through the bias module.

Abstract: A near field magnetic coupling antenna may include a plurality of annularly arranged radiators and an annular conductive portion. The annular conductive portion may include a plurality of conductive segments. A first gap may be formed between any two adjacent radiators. Each conductive segment may partially overlap two adjacent radiators and any two adjacent conductive segments may be separated by a second gap. Two adjacent radiators may be associated with a feed point and a ground point, respectively, and the feed point and the ground point may be disposed in the proximity of the first gap.

Abstract: A bookcase system is provided. The bookcase system includes at least adjacently arranged two bookcase units. Each of the bookcase units further includes a first RFID reader having an antenna and placed on a first lateral side of the bookcase unit. The bookcase unit further includes a separating structure placed between two of the adjacently arranged bookcase units. The separating structure may further include at least three metal plates forming a three-layer stacked structure, and a lateral side of each of the metal plates is larger than half of a wavelength of an operating frequency of the antenna. And books are placed along a direction parallel to the lateral side.

Abstract: An antenna structure, used for being fed with a signal, includes a grounding portion, a radiation portion, and a frequency adjusting portion. The radiation portion has a loop segment, a high frequency segment, and a low frequency segment. The loop segment has a feeding sub-segment adjacent to the grounding portion and used for being fed with the signal. The high and low frequency segments are extended from opposite ends of the loop segment away from each other. The frequency adjusting portion is connected to the loop segment and the grounding portion. A high frequency dual-path is formed from a feeding point of the feeding sub-segment and extends along the loop segment in two different directions to the high frequency segment. A low frequency dual-path is formed from the feeding point and extends along the loop segment in two different directions to the low frequency segment.

Abstract: A extension case adaptable onto a mobile terminal device to enable extended functions, includes a sheath, an electrical connector, a battery, and a radio frequency identification (RFID) antenna. The sheath is configured to shieldingly receive the mobile terminal device and comprises a covering portion and a buckling portion curvedly extended from an outer edge of the covering portion. The electrical connector is arranged on the buckling portion of the sheath for establishing electrical connection with the mobile terminal device. The battery is disposed on the covering portion and is accessible to the mobile terminal device through the electrical connector. The RFID antenna is electrically connected to the electrical connector and embeddedly disposed in the covering portion adjacent to the battery in a non-overlapping manner.

Abstract: A multi-frequency antenna includes a microwave substrate, a first antenna unit, a second antenna unit, a third antenna unit and a grounding unit. The first antenna unit, the second antenna unit, and the third antenna unit are disposed on the microwave substrate surface. The grounding unit is disposed at an edge on the surface of the microwave substrate. The grounding unit is in connection with the second antenna unit. The second antenna unit and the third antenna unit are bent to form perpendicular structures to the microwave substrate. The compact arrangement reduces the physical footprint of the antenna module to enable fitment in a wide range of products having tight special constraint.

Abstract: The instant disclosure relates to a multi-band antenna structure for accepting a feed signal. The antenna structure includes a grounding portion, a radiating portion, and a tuning portion. The radiating portion is spaced apart from the grounding portion and disposed on one side thereof. The radiating portion has a first and a second radiating segments interconnected perpendicularly. The tuning portion is connected between the first radiating segment and the grounding portion. The tuning portion has a hairpin segment and a grounding segment. The hairpin segment is substantially U-shaped and one end thereof is connected to one end of the first radiating segment proximate to the grounding portion. The opposite ends of the grounding segment are connected to the other end of the hairpin segment and the grounding portion. The connecting location between the first radiating segment and the hairpin segment is used for accepting the feed signal.

Abstract: An antenna module capable includes a substrate unit and an antenna unit. The substrate unit includes at least one carrier substrate having a dielectric constant substantially between 7 and 13. The carrier substrate includes a dielectric body and a plurality of nano-scale microparticle structures distributed inside the dielectric body, and each nano-scale microparticle structure includes at least one nano-scale carbon particle and a nano-scale insulating encapsulation layer for totally encapsulating the nano-scale carbon particle. The antenna unit includes at least one antenna track disposed on the carrier substrate. The antenna track has an antenna usage volume that is adjustable within a predetermined volume range according to the VSWR value and the antenna efficiency maintained within a first and a second predetermined ranges, and the antenna track has at least one feeding portion and at least one grounding portion.

Abstract: A communication device includes a assembly and an antenna structure formed on the assembly. The antenna structure has a feeding antenna and a stub antenna spaced apart from the feeding antenna. The feeding antenna has a feeding portion. The stub antenna is suitable for being excited and coupled by the feeding antenna, resonating at a resonance frequency of the feeding antenna, and causing the antenna structure to form two hotspots in an operated frequency band. The shortest distance between the feeding antenna and the stub antenna is defined as a coupling distance. The coupling distance is larger than zero and smaller than or equal to the length of the stub antenna. Thus, electric field value generated from the feeding antenna can be reduced by the stub antenna being excited and coupled by the feeding antenna and resonating at the resonance frequency of the feeding antenna.

Abstract: An antenna structure includes a circuit board and at least one antenna circuit. The circuit board includes a ground area and an antenna area. The antenna area is substantially rectangular-shaped and arranged between the ground area and the periphery of the circuit board. The antenna circuit is formed within the antenna area and includes a feeding segment, a border segment and at least one ground segment. The feeding segment is connected to the border segment and the distance from the border segment to the periphery of the circuit board ranges from 0 to 3 millimeters; a substantially 90° bent-structure is formed within the border segment. One end portion of the ground segment is connected to the ground area. Thus an antenna structure which enables the antenna circuit to be formed within the remaining space on the periphery of the circuit board is provided.

Abstract: An antenna structure disposed inside an external casing according to an optimum separation distance for reducing the SAR value includes a substrate unit and an antenna unit. The substrate unit includes at least one substrate body. The antenna unit includes at least one antenna layer disposed on the substrate body. The antenna layer is extended along an X-axis direction to form an X-axis distance and is extended along a Y-axis direction to form a Y-axis distance, the X-axis direction is vertical to the Y-axis direction, and the X-axis distance of the antenna layer is larger than the Y-axis distance of the antenna layer. In addition, the optimum separation distance is defined from one end of the antenna layer to the external surface of the external casing along the X-axis direction, and the optimum separation distance is substantially between 5 mm and 20 mm.

Abstract: An antenna structure used to separate hot spots for decreasing the SAR value includes a substrate unit, a microstrip line unit, a grounding unit, a first radiation unit, and a second radiation unit. The substrate unit includes a substrate body having a first surface and a second surface. The microstrip line unit includes a microstrip line disposed on the first surface of the substrate body and the microstrip line has a first end and a second end. The grounding unit includes a grounding line disposed on the second surface of the substrate body. The first radiation unit includes a first radiation line disposed on the first surface of the substrate body and extended from the first end of the microstrip line. The second radiation unit includes a second radiation line disposed on the first surface of the substrate body and extended from the second end of the microstrip line.

Abstract: A tunable antenna structure having a variable capacitor includes a substrate, a first metal strip, a second metal strip and a third metal strip formed on the substrate, a variable capacitor element located between the first metal strip and the second metal strip, an inductor element located between the second metal strip and the third metal strip, a first capacitor element located between the first metal strip and the third metal strip, and a second capacitor element located on the third metal strip.

Abstract: A manufacturing method of an antenna structure includes the following steps: producing a main body by injection molding of a first plastic, wherein the first plastic is a plating grade plastic; covering the main body by a second plastic to form a covering layer, wherein plating can not be done for the first and second plastics concurrently; removing a pre-determined portion of the covering layer, wherein a patterned layer is defined by the unremoved portion of the covering layer, wherein at least one trench is formed by the exposed portion of the main body and surrounding patterned layer; and plating an antenna material in the trench to form an antenna. Thus, the instant disclosure can reduce the manufacturing cost of the antenna structure. Based on the preceding manufacturing method, an antenna structure is also disclosed.

Abstract: A wireless charging mobile communication device includes a wireless communication module, an electricity storage module, a converting module, an antenna module and a switching module. The antenna module receives and transmits wireless signal or electromagnetically induces a current. The switching module is electrically coupled to the antenna module, the wireless communication module, and the converting module. The switching module is for connecting the antenna module with the wireless communication module or connecting the antenna module with the converting module. The converting module is electrically coupled to the electricity storage module and converts the electromagnetically induced current for facilitating a charging of the electricity storage module. The converting module, the antenna module, and the switching module are integrated as an antenna device.

Abstract: A method for improving compatibility of a hearing aid with an antenna, in which at least a metal frame is provided near by a grounding surface of the antenna to change the direction of radiation of the antenna, thereby to enhance the directivity of the antenna on the side away from a hearing aid, and to reduce the quantity of radiation proceeding toward the hearing aid and to improve the near-field quantity (for about 3 dB) of an electric field of an HAC tested plane. This method can further increase the heights of the metal frames to reduce the near-field quantity of the electric field of HAC (hearing aid compatibility) tested plane.

Abstract: A touch structure having an antenna function includes a substrate unit and an antenna unit. The substrate unit has a touch surface on the top surface thereof for an external object to touch in order to operate a touch-controlled module. The substrate unit includes at least one transparent substrate having at least one transparent portion and at least one nontransparent portion disposed around the transparent portion and combined with the transparent portion, the transparent portion has an image-viewing area on the top surface thereof, and the nontransparent portion has a non-image-viewing area on the top surface thereof. The antenna unit includes at least one antenna radiation structure disposed on the transparent substrate or embedded in the transparent substrate, and the layout of the antenna radiation structure shows an antenna radiation pattern having a predetermined operation band.