3554results about "Antenna couplings" patented technology

A headset antenna and a connector for the same are provided. The headset antenna includes an audio signal line, an antenna and a high impedance element in specified application frequency ranges. The audio signal line is adapted for transmitting an audio signal and the antenna is adapted for receiving an RF signal. The high impedance element is disposed on a transmission path of the audio signal and generates a high impedance at a specified frequency band of the RF signal, so that the audio signal line is equivalent to an open circuit and the antenna obtains a better receiving capability.

The invention relates to the technical field of communication, in particular to an airborne Tiantong phased-array antenna and an application method thereof. According to the method, phased-array antenna beams are driven to perform electronic scanning according to a geometric azimuth angle, beacon signal blind acquisition is performed in a preset airspace in a wide beam mode, and when an initial signal is detected, the mode is immediately switched to a narrow beam scanning mode; dynamically adjusting a phase weighting coefficient to realize pointing adjustment, so that a signal quality parameter is continuously converged in an optimal threshold interval; carrying aircraft maneuvering acceleration feedback is introduced, beam pointing offset is dynamically compensated based on a pre-constructed interference feature library, and signal fluctuation caused by a multipath effect is suppressed; and continuously checking a data validity flag bit of the main inertial navigation system, seamlessly switching to an antenna built-in inertial navigation data stream when a failure threshold is triggered, and activating a rapid recapture program to maintain zero interruption of a communication link. Through dual-source inertial navigation data fusion and intelligent beam control, rapid and accurate tracking of Tiantong satellites in an airborne environment is realized.

Embodiments of the invention provide a pen-stylus that comprises a first antenna having a hemispherical shape at a proximal end of the pen-stylus where the pen-stylus engages with a display of a tablet device. The pen-stylus also includes a second antenna, wherein the first antenna and the second antenna communicate with the tablet device to enable a pen-stylus user to draw on the display of the tablet device. The pen-stylus additionally includes an insulating material between the first antenna and the second antenna that prevents interference between the first antenna and the second antenna. In some embodiments, the first antenna and the insulating material reside in a marker tip attached to the pen-stylus, the marker tip transmits axial forces received by engagement of the pen-stylus with the display on the tablet to a force sensor. The pen-stylus further includes a force sensor that converts axial forces received from the marker tip into an electrical signal and transmits the electrical signal to the tablet by at least one of the first antenna and the second antenna.

Aspects of the subject disclosure may include, for example, identifying one or more radiating elements of an antenna system that are to be adjusted based on interference determined to affect an operation of the antenna system, and altering one or more properties of the one or more radiating elements to effect polarization adjusting such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, obtaining data regarding interference detected in a received communication signal, and performing phase adjusting for one or more radiating elements of an antenna system such that an impact of the interference on the antenna system is minimized. Other embodiments are disclosed.

Aspects of the subject disclosure may include, for example, receiving, via an antenna, a communication signal generated by a communication device, and detecting interference in the communication signal, wherein the interference is generated by one or more interference sources, wherein the interference is detected by monitoring a near field region of the antenna, an intermediate field region of the antenna, a far field region of the antenna, or any combinations thereof, wherein the monitoring excludes monitoring only the far field region of the antenna. Other embodiments are disclosed.

The invention discloses a broadband high-gain microstrip antenna, which is provided with a rectangular radiation patch, a symmetrical grooving parasitic patch, a dielectric substrate, a metal bottom plate and a polytetrafluoroethylene support column, the rectangular radiation patch and the symmetrical grooving parasitic microstrip are attached to the upper layer of the dielectric substrate; a certain distance is formed between the rectangular radiation patch and the slotted parasitic patch and is used for coupling electromagnetic waves; the upper dielectric substrate is provided with two through holes for feeding; the metal bottom plate and the upper-layer substrate are fixed through four polytetrafluoroethylene supporting columns; a space is reserved in the middle to form an air substrate; and an SMA interface is arranged below the floor. According to the microstrip patch antenna, the forms of differential feeding and parasitic patch adding are adopted, the high gain and broadband characteristics of the microstrip patch antenna are achieved, the profile of the antenna is kept within 0.1 lambda, and the unipolar radiation pattern is achieved while high performance is guaranteed. In addition, the antenna is relatively simple in technical structure and convenient for later processing, can be used as an array unit for arraying, and meets the requirements of modern communication.

Various embodiments provide an antenna assembly and associated systems, devices, and methods. The antenna assembly may include two or more antennas, including a first antenna and a second antenna, coupled to a ground plane. The antenna assembly may further include an isolation network coupled to the ground plane between the first and second antennas. The isolation network may include a conductive structure between conductive antenna portions of the first and second antennas, and an isolation circuit coupled between the conductive structure and the ground plane. The isolation circuit may include a resistor, an inductor, and / or a capacitor (e.g., coupled in parallel with one another). Other embodiments may be described and claimed.

The invention provides a wide-angle scanning dual-circularly-polarized phased-array antenna unit, which belongs to the field of dual-circularly-polarized antennas and comprises a first dielectric layer, a second dielectric layer and a third dielectric layer which are sequentially stacked, the antenna radiator is arranged on the side, away from the second dielectric layer, of the first dielectric layer, the antenna radiator comprises four radiation patches, each radiation patch comprises a metal patch and a loading branch knot, and each metal patch is provided with a slotted structure; the first metal ground layer is clamped between the first dielectric layer and the second dielectric layer, and a cross coupling gap and a first coupling gap and a second coupling gap which are perpendicular to each other are formed in the first metal ground layer; the U-shaped feeder line is clamped between the second dielectric layer and the third dielectric layer, and two ends of the U-shaped feeder line are respectively connected with a coaxial feed column penetrating through the third dielectric layer; the second metal ground layer is arranged on the side, away from the second dielectric layer, of the third dielectric layer; an array is also provided; the problem that a traditional circularly polarized antenna is narrow in impedance bandwidth and limited in polarization is solved.

The embodiment of the invention provides a ka and k waveband dual-frequency dual-polarization broadband wide-angle scanning common-aperture antenna unit and an antenna array, and relates to the technical field of common-aperture antenna arrays, the antenna unit comprises an antenna unit substrate, a low-frequency antenna, a high-frequency antenna and a wide-angle matching layer; the low-frequency antenna and the high-frequency antenna are arranged in the antenna unit substrate, and the high-frequency antenna comprises a shielding enclosure frame which is located between the low-frequency antenna and the high-frequency horizontal polarization L-shaped feed probe and between the low-frequency antenna and the high-frequency vertical polarization L-shaped feed probe; the wide-angle matching layer is arranged on the front surface of the antenna unit substrate and is positioned above the low-frequency antenna and the high-frequency antenna; wherein the low-frequency antenna is an L-shaped probe coupling microstrip patch antenna with a shielding enclosure frame, and the high-frequency antenna is a slot antenna. The antenna is simple in structure, employs a printed board technology, is very low in processing difficulty, is lower in cost, and is easy to be interconnected with rear-end equipment.

The invention discloses a compact millimeter wave dual-polarization filtering antenna and array, which comprises 11 layers of structures (a first metal layer to a sixth metal layer, three dielectric layers and two bonding layers) and three types of metalized via holes which are sequentially stacked from top to bottom, the feed through hole penetrates through the first dielectric layer to the third dielectric layer, the short-circuit through hole penetrates through the first dielectric layer to the third dielectric layer, and the shielding hole penetrates through the third dielectric layer. Wherein a cross-shaped radiation patch and a C-shaped parasitic metal strip line are arranged on the first metal layer; an annular driving patch is arranged on the second metal layer; the third metal layer is provided with a feed metal strip line and a parasitic metal strip line. The fourth metal layer is provided with a parasitic open-circuit branch. A first grounding plane is arranged on the fifth metal layer; the sixth metal layer is provided with a second grounding plane and an anti-pad. The working frequency band covers the n258 frequency band and the n257 frequency band of 5G millimeter waves, dual-polarization radiation and effective out-of-band rejection can be achieved, and meanwhile the antenna has the advantages of being compact in structure and light and handy in appearance.

The dual-polarized antenna comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, a fifth dielectric substrate and a double-feed probe, the first dielectric substrate, the second dielectric substrate and the fifth dielectric substrate are stacked, one surface of the first dielectric substrate is provided with four centrosymmetric patch units, and the surface, close to the first dielectric substrate, of the second dielectric substrate is provided with a radiation patch coaxial with the patch units. A first I-shaped gap and a second I-shaped gap which are crossed, vertical and centrosymmetric are formed in the third dielectric substrate close to the second substrate surface, a plurality of first metalized via holes are formed in the periphery, and the gaps are coaxial with the patch unit; the fourth dielectric substrate is provided with a first T-shaped microstrip feeder line and a second T-shaped microstrip feeder line which are not in contact with each other, the periphery of the fourth dielectric substrate is provided with second metalized via holes which are in one-to-one correspondence with the first via holes, and the feeder lines are respectively corresponding to the I-shaped gaps; and the double-feed probe is respectively connected with the feed points of the first T-shaped microstrip feeder and the second T-shaped microstrip feeder through feed holes. By adopting the dual-polarized antenna, the port isolation and the wide-angle scanning range can be improved.

An antenna module is configured to receive a signal from a baseband circuit and to radiate a radio wave. The antenna module includes a dielectric substrate, radiating elements, and a connector. The dielectric substrate includes planar sections having different normal directions. A first radiating element is disposed in or on the planar section. A second radiating element is disposed in or on the planar section. The antenna module is configured to transfer a radio-frequency signal to a third radiating element, which is externally disposed, via the connector. The size of the second radiating element is smaller than that of the third radiating element.

An antenna device includes an antenna array in which a plurality of antennas each including a negative differential resistance element and a resonance circuit are arranged, a voltage bias circuit which applies a voltage to the antenna array, a first shunt element which is connected between the antenna array and the voltage bias circuit in parallel relation to each of the negative differential resistance element and the voltage bias circuit, and in which a first resistor and a first capacitor of the first shunt element are connected in series, and a second shunt element which is connected between the first shunt element and the voltage bias circuit in parallel relation to each of the negative differential resistance element and the voltage bias circuit, and in which a second resistor and a second capacitor of the second shunt element are connected in series.

The invention discloses a linear polarization scattering reconfigurable array antenna, which belongs to the technical field of antenna manufacturing and comprises an antenna unit, an extension socket, a transmission type phase shifter and an inductor. The antenna unit comprises a radiation patch, a first dielectric substrate, a metal via hole, a metal patch, a second dielectric substrate, a perforated metal floor, a third dielectric substrate, a feed metal column and a radio frequency coaxial connector, the radio frequency coaxial connector is connected with the radiation patch through the feed metal column, and a variable capacitance diode and a capacitor are arranged on the transmission type phase shifter. The transmission type phase shifter is connected with the radiation patch through the feed metal column, the variable capacitance diode is connected with the punching metal floor, the bottom of the third dielectric substrate is provided with a direct current bias line, the direct current bias line is connected with the transmission type phase shifter through the inductor, and the transmission type phase shifter is connected with the radiation patch through the feed metal column. According to the invention, flexible regulation and control of antenna scattering beams can be realized, and the antenna has the characteristics of flexible control, fast response speed and high radiation efficiency.

Base station antennas include a reflector, a first linear array of radiating elements extending forwardly from the reflector, the radiating elements in the first linear array configured to operate in a first frequency band, and a second linear array of radiating elements extending forwardly from the reflector, the radiating elements in the second linear array configured to operate in the first frequency band. These antennas further include an isolation wall that is positioned in between the first linear array of radiating elements and the second linear array of radiating elements. This isolation wall comprises at least one partially reflective surface that is configured to reflect, on average as a function of frequency, between 20% and 80% of incident radiation in the first frequency band.

Disclosed is a radar antenna which has a shielding space corresponding to each antenna of an antenna body by using an accommodation hole of a shielding member to prevent mutual coupling between antennas. The disclosed radar antenna comprises an antenna body which has a first surface and a second surface and in which a plurality first slot groups are formed to be spaced apart from each other on the first surface, and a shielding member which is stacked on the first surface of the antenna body and in which a plurality of accommodation holes are formed to respectively overlap the plurality of first slot groups.

The invention provides a common-caliber dual-polarization indoor distribution antenna and communication equipment, the common-caliber dual-polarization indoor distribution antenna comprises a vertical polarization antenna, a horizontal polarization antenna and a feed structure, the vertical polarization antenna comprises a metal floor, a triangular metal plate, a plurality of grounding metal columns and a first copper-clad layer, the triangular metal plate and the plurality of grounding metal columns are arranged between the metal floor and the first copper-clad layer; the horizontally polarized antenna comprises a double-layer dielectric plate and a slot array, the bottom of the double-layer dielectric plate is coated with copper to form a first copper-coated layer, and the slot array is arranged at the top of the double-layer dielectric plate; the horizontally-polarized antenna and the vertically-polarized antenna are arranged in a common-caliber mode, the structure is simple, and the size is small. The feed structure comprises a first feed structure and a second feed structure, the first feed structure is connected with the vertical polarized antenna, and the second feed structure is connected with the horizontal polarized antenna; the first feed structure and the second feed structure are arranged on the metal floor in a non-overlapping manner, so that coupling interference is avoided.

The invention discloses a low-profile and high-integration broadband dual-circularly-polarized transceiving common-aperture phased-array antenna, which adopts a multi-layer PCB (Printed Circuit Board) laminated structure, comprises a radiation patch layer, a quasi-rectangular patch layer, a metal reflection ground layer and a feed layer from top to bottom, and is combined with a metalized blind hole and a buried hole to form a complete coupling path. A U-shaped groove, a U-shaped metal strip and a C-shaped groove are integrated on a metal reflection ground, and a staggered groove is loaded on a quasi-rectangular patch, so that a K / Ka dual-band separated dual-coupled feed structure is realized, and dual circularly polarized radiation is obtained under the same aperture. The antenna is further provided with outer ring and inner ring plated-through hole arrays, the outer ring plated-through hole arrays are used for constructing an isolation area to improve the isolation degree between wavebands, and the inner ring plated-through hole arrays introduce a horizontal electric field component to improve the circular polarization purity and expand the axial ratio bandwidth. Wide impedance bandwidth and wide axial ratio bandwidth are realized in the K wave band and the Ka wave band, the isolation degree is high, the profile is low, the structure is compact, and the broadband phased array antenna is suitable for broadband phased array systems such as satellite communication terminals and mobile platforms.

According to one embodiment, electronic circuitry, includes a first radiating element; a second radiating element; a first circuit element including a first end and a second end, the first end being connected to one end of one of the first radiating element or the second radiating element; and a second circuit element connected between the second end of the first circuit element and one end of another of the first radiating element or the second radiating element.

According to the glass phased-array antenna control module and the manufacturing method thereof, a control circuit is manufactured on a glass substrate through a TFT manufacturing process, high-precision control over a phased-array antenna is achieved, the accuracy of beam pointing of the phased-array antenna and the quality of signal processing are guaranteed, and the manufacturing cost of the phased-array antenna is reduced. Through the combination of a TFT manufacturing process and a TGV technology, the layout space of a control circuit is saved, the installation space of an antenna chip is saved through a COB packaging mode, the high integration level of the phased-array antenna is achieved, the requirements for miniaturization and multi-functionalization of the phased-array antenna are met, and the application range of the phased-array antenna is widened. According to the phased-array antenna, the grounding isolation holes are formed in the periphery of the antenna chip, so that good crosstalk resistance is achieved, the stability and reliability of the phased-array antenna are improved, the performance of the phased-array antenna is comprehensively improved, the phased-array antenna has higher competitiveness in the fields of satellite communication, vehicle-mounted radars, military radars and the like, and the application prospect is wide. And the requirements of various fields on high-performance phased-array antennas can be better met.

The utility model provides an antenna structure, a vehicle-mounted antenna and a vehicle, and belongs to the technical field of vehicle parts, and the antenna structure comprises an antenna assembly and a reflector. The antenna assembly comprises a first antenna and a second antenna which are oppositely arranged; the reflector is disposed between the first antenna and the second antenna, and the reflector is configured to reflect the first antenna. According to the antenna structure provided by the embodiment of the invention, the signal of the first antenna can be reflected through the reflecting piece, the coverage range of the first antenna is adjusted, the coverage defect is reduced, and the application scene of the antenna structure is expanded.

The invention provides electronic equipment. The electronic equipment comprises a first antenna and a second antenna which are arranged adjacently. The first antenna takes the conductive part of the frame of the first shell as a first radiator. And the second antenna takes the conductive part of the frame of the second shell as a second radiator. When the electronic device is in a closed state, the first radiator and the second radiator are at least partially overlapped in the thickness direction of the electronic device. The first antenna and the second antenna have good isolation, and the first antenna and the second antenna can work at the same time to improve the communication performance of the electronic equipment.

The invention provides an electromagnetic shielding device of a complex electronic system, which belongs to the technical field of electromagnetic shielding of radio telescopes and comprises a filter shielding cabinet, a waveguide tube and a connecting mechanism. The filter shielding cabinet is arranged at the top of the shielding cabin and located outside the shielding cabin; a servo system shielding cabinet is arranged in the shielding cabin; the filter shielding cabinet is provided with a wire outlet pipe, the shielding cabin is provided with a mounting port, and the wire outlet pipe penetrates through the mounting port to enter the shielding cabin. And one end of the waveguide tube is connected with the filtering shielding mechanism, and the other end of the waveguide tube is connected with the servo system shielding cabinet. And the connecting mechanism is arranged at the wire outlet pipe and is used for connecting the wire outlet pipe and the waveguide tube or connecting the waveguide tube and the servo system shielding cabinet. The filter shielding cabinet is arranged outside the shielding cabin, the internal space of the shielding cabin is not occupied, and the problems that the space in the shielding cabin is narrow, and the filter shielding cabinet is difficult to install are solved.

The embodiment of the invention provides a dual-frequency base station antenna, and belongs to the technical field of antenna equipment, the dual-frequency base station antenna comprises a grounding plate, two dielectric substrates are laminated on the grounding plate, each dielectric substrate is correspondingly provided with a radiation unit, and the radiation signal frequency bands of the two radiation units are different; the radiation unit comprises a radiation patch and a metal through hole array which are arranged on the dielectric substrate, the radiation patch is a fan-shaped patch, the metal through hole array is arranged around the arc-shaped edge of the radiation patch, and the metal through hole array, the grounding plate, the dielectric substrate and the radiation patch jointly form a substrate integrated waveguide resonant cavity; the substrate integrated waveguide resonant cavity is configured to couple and excite the radiation patch after being externally excited so as to radiate a signal of a preset frequency band through the radiation patch. The dual-frequency base station antenna provided by the embodiment of the invention has excellent pilot frequency isolation performance, and can realize bandwidth expansion and radiation optimization effects.

The invention relates to the technical field of array antennas, and discloses a common-caliber layout-based ultra-wideband array antenna, which comprises a low-frequency unit and a high-frequency unit which are arranged based on a common caliber, and is characterized in that the working frequency of the low-frequency unit covers an fmin-f0 frequency band, and the working frequency of the high-frequency unit covers an f0-fmax frequency band. The low-frequency unit is a broadband dual-polarized antenna, a uniform tight coupling array distributed at equal intervals is formed by adopting a tight coupling principle, and the unit interval is calculated based on a grating lobe suppression condition at the frequency f0. The high-frequency unit is a miniaturized broadband dual-polarized antenna and adopts a sparse array form; the initial unit spacing and the unit number of the sparse array are calculated based on the grating lobe suppression condition at the highest frequency f2 of the f1-f2 frequency band with the side lobe requirement between the f0-fmax frequency bands. The ultra-wideband array antenna gives consideration to full-band array performance, can provide sufficient space for active circuit arrangement, and effectively reduces power consumption and cost.

The invention provides an antenna system and terminal equipment, which can be applied to the technical field of communication. The antenna system comprises a metal frame and an equivalent filter circuit. At least one antenna area is arranged in the metal frame, a first antenna branch knot and a second antenna branch knot are arranged in the antenna area, and a coupling gap is formed between the first antenna branch knot and the second antenna branch knot; the first antenna branch knot is provided with a first feeding point, and the second antenna branch knot is provided with a second feeding point; the equivalent filter circuit is arranged at the coupling gap, the first end of the equivalent filter circuit is connected with the metal frame, and the second end of the equivalent filter circuit is grounded; the equivalent filter circuit comprises a first inductor and an adjustable capacitor module which are connected in parallel, and the adjustable capacitor module is configured to be capable of dynamically regulating and controlling the self capacitance value. According to the invention, the problem of mutual interference isolation of a breakpoint-free metal frame antenna in medium and high frequency bands is effectively solved, and meanwhile, low-frequency switching coverage of an antenna system can be realized, so that the problem of narrow low-frequency bandwidth of the antenna is solved.

The invention provides a wide-axial-ratio circularly polarized antenna, and relates to the technical field of antennas, and the antenna comprises a dielectric substrate, and the edge of the dielectric substrate is uniformly provided with metalized via holes; the radiation patch covers the upper surface of the dielectric substrate, and a first circular gap is formed in the middle of the radiation patch; the feed network is located on the lower surface of the dielectric substrate; the metal cover comprises a metal back cavity, the metal cover covers the bottom of the feed network and the bottom of the dielectric substrate, and the feed network is located in the metal back cavity; the radio frequency connector passes through the dielectric substrate and the radiation patch and is welded on the upper surface of the radiation patch; one end of the coaxial cable is connected to the lower end of the radio frequency connector, and the other end of the coaxial cable penetrates through the metal back cavity and is connected with the metal cover; the invention is used for solving the technical problems of low gain, narrow axial ratio beam width, complex design and manufacture and overlarge antenna size of the existing circularly polarized antenna.

The invention relates to the technical field of wireless communication, in particular to an RFID high-gain phased-array antenna array. The system comprises an RFID tag module, a direction switching module and a beam optimization module. A coordinate system is constructed through the RFID tag module, the three-dimensional position of a target tag is solved in real time, the three-dimensional position of the target tag is obtained through the direction switching module, a phased-array antenna is formed through the power divider and the 3dB bridge, the power divider is used for carrying out equal-amplitude distribution on input radio-frequency signals, the phase difference characteristic of the 3dB bridge is combined, the wave beam pointing direction of a phased array is changed, and the phase difference characteristic of the 3dB bridge is combined, so that the three-dimensional position of the target tag is obtained. And the beam optimization module establishes a neural network model, dynamically adjusts the pointing beam of the phased array, evaluates the current beam performance by taking the tag identification success rate as an index, and performs feedback optimization on the beam, so that the signal coverage area is adjusted according to the retail scene requirement, and the tag identification rate is improved.

This application discloses an antenna system comprising a first radiating source, a second radiating source, a reflecting device, and a first transmitting device. The transmitting ports of the first and second radiating sources are arranged opposite to each other along the same axis, and the reflecting surface of the reflecting device is positioned opposite to the first transmitting device. The first radiating source transmits a first signal to the reflecting surface of the reflecting device; the reflecting device reflects the first signal through the reflecting surface to the annular transmission region of the first transmitting device; the first transmitting device radiates the first signal reflected by the reflecting surface out of the antenna system through the annular transmission region; the second radiating source transmits a second signal, which is radiated out of the antenna system through the area formed by the inner diameter of the annular transmission region. This achieves common-aperture radiation of signals from different transmitting ports with independent radiation paths, improving the radiation efficiency of the antenna system.