19 results about "Antenna efficiency" patented technology

The application discloses a coupling antenna and electronic equipment, which comprises a cross-joint unit, a first antenna branch, a second antenna branch and a feeding unit. The cross-joint unit comprises a selection switch and a plurality of antenna cross-joints. The selection switch is connected with the plurality of antenna cross-joints. The cross-joint unit is connected with the first antenna branch through the plurality of antenna cross-joints. The cross-joint unit is connected with the second antenna branch through the selection switch. The first antenna branch is further connected with the feeding unit. The method does not introduce a capacitor inductor device, thereby reducing device loss, increasing antenna efficiency, and the plurality of antenna cross-joints can be selected according to requirements, thereby increasing the antenna tuning range.

The present specification provides a satellite communication antenna and electronic equipment, the antenna comprises a first radiation branch and a parasitic unit, the parasitic unit is a ring branch, and at least part of the branch is close to the first radiation branch and is coupled, and the parasitic unit is connected to the ground through at least one ground point.The satellite communication antenna of the embodiment of the present specification forms circular polarization by using the coupling effect of the parasitic unit, greatly improves the antenna gain compared with linear polarization satellite antenna, and improves the actual experience of satellite communication.And the radiation direction of the satellite communication antenna is mainly towards the zenith region, so that the antenna efficiency is higher, the satellite searching and communication efficiency in the state of user handheld mobile phone is improved, and the user experience is improved.

The invention provides an antenna assembly and electronic equipment. The antenna assembly comprises a ground pole, a first antenna and a second antenna. The earth pole comprises a first edge, a second edge and a third edge which are sequentially connected in a bent mode, the third edge and the first edge are arranged in a back-to-back mode, and the length of the first edge and the length of the third edge are both larger than that of the second edge; the first antenna comprises a first radiating body and a first feed source, the first radiating body is provided with a first feeding point, the first radiating body is arranged corresponding to the first edge, and the first feed source is electrically connected to the first feeding point to excite the first radiating body to support a target frequency band; the second antenna comprises a second radiating body and a second feed source, the second radiating body is provided with a second feeding point, the second radiating body is arranged corresponding to the third side, and the second feed source is electrically connected to the second radiating body to excite the second radiating body to support the target frequency band. The antenna assembly provided by the invention is relatively high in antenna efficiency in the target frequency band.

The application relates to the technical field of wearable antennas, in particular to a metal frame smart watch antenna based on a double-feed technology, which comprises a metal frame, a metal ground plate, a parasitic metal, a first feed port, a second feed port, a feed source, a power divider and a phase shifter; the feed source forms two feed paths through the power divider, one of which feeds into the first feed port, and the other feeds into the second feed port through the phase shifter. The antenna can be configured to connect a slot antenna to the first feed port and connect a patch antenna to the second feed port so that the two antennas work simultaneously, or configured to connect the two feed ports to the same patch antenna so that the patch antenna generates a double mode. The scheme is favorable for improving the low-frequency antenna efficiency, improving the bandwidth performance, and realizing double-feed work under the condition of a single excitation source.

This disclosure relates to an antenna structure, a mid-frame, and an electronic device. The antenna structure includes a first stub and a second stub. The first stub has a feed point. A gap is provided between the second stub and the first stub. The gap between the feed point and the gap includes a first segment. The second stub has a first tuning circuit. The first tuning circuit is used to adjust the length of the second stub used for radiation. The gap between the first tuning circuit and the gap includes a second segment. When the antenna structure operates in a first frequency band, the second segment acts as a parasitic stub of the first segment to excite the eigenmode of the first frequency band. By adjusting the length of the second stub used for radiation through the first tuning circuit, the second segment acts as a parasitic stub of the first stub, thereby enhancing the radiation performance of the first frequency band and improving antenna efficiency. Simultaneously, adjusting the length of the second stub involved in radiation through the first tuning circuit can also take into account the radiation performance of other frequency bands.

The present disclosure discloses an earphone, relating to the technical field of electronic devices. The earphone comprises an antenna assembly and a capacitive detection component disposed within a radiation range of the antenna assembly. The capacitive detection component is configured to generate an electrical signal based on whether a user is wearing the earphone or whether the user performs a touch action. The capacitive detection component includes a detection electrode layer and a reference electrode layer stacked together. At least one of the detection electrode layer or the reference electrode layer includes a serpentine trace, and at least a portion of the serpentine trace is disposed in an overlapping region of the detection electrode layer and the reference electrode layer in a stacking direction. The present disclosure provides an improvement to the capacitive detection module, reducing its impact on the antenna assembly and enhancing antenna efficiency.

This invention discloses a method and apparatus for transmitting audio signals using a multi-band multiplexed wireless microphone. The method includes: converting an audio signal into a radio frequency modulated signal and performing linear power amplification to obtain a wideband radio frequency signal; then, directionally guiding the wideband radio frequency signal into a target filtering path corresponding to a preset frequency band; obtaining a clean target frequency band radio frequency signal through narrowband constraint filtering of a bandpass filter within the path; finally, converging the signal into a single path and transmitting it to a receiving end based on an antenna matching its preset frequency band. This invention proposes a method and apparatus for transmitting audio signals using a multi-band multiplexed wireless microphone. By using linear power amplification to avoid harmonic spurious signals generated during high-power output, directionally guiding the wideband signal to a path corresponding to a preset frequency band and filtering out spurious signals through narrowband constraint filtering of a bandpass filter, and combining this with an antenna to improve transmission efficiency, it can solve the problem of incompatibility between spurious signal suppression and antenna efficiency under high-power output of ultra-wideband wireless microphones.

Various embodiments of the present disclosure relate to an electronic device and method for improving antenna efficiency. The method can include the steps of: when the electronic device is in a closed state in which at least a portion of a first case of the electronic device slides into an inner space of a second case of the electronic device, performing a short distance communication function using a first coil; and when the electronic device is in an open state in which at least a portion of the first case slides out of the inner space of the second case, performing the short distance communication function using a second coil. In the present disclosure, various other embodiments are possible.

The present application relates to the technical field of electronic devices. Disclosed is an earphone. The earphone comprises an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within a radiation range of the antenna assembly, and is configured to generate a corresponding electrical signal on the basis of whether a user wears the earphone or whether the user executes a touch action, wherein the capacitive detection assembly comprises a detection electrode layer and a reference electrode layer, which are stacked, the detection electrode layer and / or the reference electrode layer comprises a serpentine line, and at least part of the serpentine line is disposed in an overlapping region of the detection electrode layer and the reference electrode layer in the stacking direction. The present application improves a capacitive detection assembly to reduce the influence of the capacitive detection assembly on an antenna assembly, thereby improving antenna efficiency.

This application provides a foldable electronic device and an antenna system for same. The antenna system includes a main antenna element and a parasitic antenna element. The main antenna element is an antenna structure having a radiation characteristic of a current loop antenna, and includes a feed point and a first radiating branch disposed on a first body of the electronic device. The parasitic antenna element includes a second radiating branch disposed on a second body of the electronic device. In a folded state, the first radiating branch and the second radiating branch are at least partially overlapped. The first radiating branch is configured to perform magnetic field coupling with the second radiating branch, to form current loop radiation on both the first radiating branch and the second radiating branch, and a current direction in a current loop formed on the first radiating branch is the same as a current direction in a current loop formed on the second radiating branch. In this manner, longitudinal currents in a same direction may be simultaneously excited on a foldable grounding plate of the electronic device, to achieve a purpose of reducing or eliminating energy consumed in the folded state and increasing antenna efficiency, effectively resolving a problem of poor antenna efficiency in a low band of the electronic device in the folded state.

This application discloses an earphone, relating to the technical field of electronic devices. The earphone includes an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within the radiation range of the antenna assembly and is configured to generate a corresponding electrical signal based on whether the user is wearing the earphone or whether the user performs a touch action. The capacitive detection assembly includes a stacked detection electrode layer and a reference electrode layer, and the detection electrode layer and / or the reference electrode layer includes a serpentine line, at least a portion of which is disposed in the overlapping area of ​​the detection electrode layer and the reference electrode layer in the stacking direction. This application improves the capacitive detection assembly, reducing its impact on the antenna assembly and improving antenna efficiency.

The present disclosure discloses an earphone, relating to the technical field of electronic devices. The earphone comprises an antenna assembly and a capacitive detection component disposed within a radiation range of the antenna assembly. The capacitive detection component is configured to generate an electrical signal based on whether a user is wearing the earphone or whether the user performs a touch action. The capacitive detection component is provided with an electrode zone and a ground line, the electrode zone being configured to generate the electrical signal, and the ground line being arranged around the electrode zone and spaced apart from the electrode zone. The present disclosure provides the following beneficial effects: the present disclosure improves the capacitive detection component, reduces its impact on the antenna assembly, and enhances antenna efficiency.

The design of a Global Navigation Satellite System (GNSS) antenna requires consideration of a range of characteristics including, for example, the ability for tracking satellites at low elevation, phase centre variation (PCV), antenna efficiency and impedance, axial ratio and up-down ratio (UDR), antenna bandwidth, etc. whilst also providing a light weight, compact and robust form factor. For rover applications this becomes particularly important when the satellites being accessed may be at low elevations where prior art GNSS antenna exhibit poor performance. To address this a GNSS antenna is provided comprising a domed array of opposed metallized antenna elements which are indirectly coupled via a pair of dipoles to the feed network thereby avoiding the difficulties associated with direct electrical connections of feed circuits to antenna elements.

This utility model relates to the field of communication device technology, and discloses a cavity antenna assembly and terminal equipment. The antenna assembly includes: a product bottom shell; a slot disposed on the product bottom shell; a shielding structure disposed on the back of the slot, the outline of the shielding structure being adapted to the outline of the slot; and a feed point disposed within the slot and electrically connected to a radio frequency circuit. The product bottom shell, the slot, and the shielding structure together form a cavity antenna, and the feed point is used to excite the cavity antenna to resonate in a predetermined frequency band. By utilizing the slot in the device as part of the antenna, the overall space is effectively saved while ensuring that the antenna efficiency of the device meets standards, thereby satisfying market requirements for product communication performance.

This application discloses an earphone, relating to the technical field of electronic devices. The earphone includes an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within the radiation range of the antenna assembly and is configured to generate corresponding electrical signals based on whether the user is wearing the earphone or whether the user performs a touch action. The capacitive detection assembly includes an electrode area and a ground wire. The electrode area is used to generate electrical signals, and the ground wire is looped around the electrode area and spaced apart from it. This application improves the capacitive detection assembly, reducing its impact on the antenna assembly and improving antenna efficiency. Specifically, by using a ground wire looped around the electrode area, it suppresses signals coupled from the antenna assembly to the capacitive detection assembly, reducing the transmission of electromagnetic energy between the antenna assembly and the capacitive detection assembly, thereby achieving shielding and isolation effects and improving antenna efficiency.

The present application relates to the technical field of electronic devices, and discloses an earphone. The earphone comprises an antenna assembly and a capacitive detection assembly. The capacitive detection assembly is disposed within a radiation range of the antenna assembly, and is configured to generate a corresponding electrical signal on the basis of whether a user is wearing the earphone or whether the user is executing a touch action. The capacitive detection assembly is provided with an electrode region and a ground line, the electrode region is used for generating the electrical signal, and the ground line is annularly disposed around the electrode region and spaced apart from the electrode region. The present application improves the capacitive detection assembly, reduces the influence of the capacitive detection assembly on the antenna assembly, and improves antenna efficiency. Specifically, the ground line is annularly disposed around the electrode region, so that a signal coupled from the antenna assembly to the capacitive detection assembly is suppressed, and the transmission of electromagnetic energy between the antenna assembly and the capacitive detection assembly is reduced, thereby achieving the effects of shielding and isolation, and improving antenna efficiency.

This invention discloses a near-field focusing circularly polarized radial slot array antenna and its design method. Based on a single-layer radial waveguide, the antenna employs direct feeding via coaxial probes. The focal position and circular polarization direction are adjusted by modifying the slot pair layout and slot orientation. Etching helical slots improves the antenna's radiation performance, and loading short-circuit probes suppresses the influence of higher-order modes. This invention addresses the limitations of existing technologies, such as the application scenarios of ring-distributed slot pairs, the difficulty in implementing electromagnetic algorithm analysis, and the low radiation efficiency of existing near-field focusing antennas. This invention achieves near-field focusing characteristics not yet present in existing radial slot array antennas, reducing the structural complexity of existing near-field focusing antennas and improving antenna efficiency.