63 results about "Transmitter antenna" patented technology

A kitchen appliance is disclosed includes a first electrical component, a second electrical component, and a wireless power receiver system. The wireless power receiver system includes a first receiver antenna configured to couple with a first transmission antenna and receive virtual AC power signals from the first transmission antenna. A second receiver antenna is configured to couple with a second transmission antenna and receive virtual DC power signals from the second transmitter antenna. A first receiver power conditioning system is configured to receive the virtual AC power signals, convert the virtual AC power signals to AC received power signals, and provide the AC received power signals to power the first electrical component. The second receiver power conditioning system configured to receive the virtual DC power signals, convert the virtual DC power signals to DC received power signals, and provide the DC received power signals to power the second electrical component.

A vehicle radar sensor unit (2) having an antenna arrangement (3), a transceiver arrangement (4a, 4b, 4c, 4d) and a processing unit (6). The antenna arrangement (3) includes at least one transmitter array antenna (7) and at least two receiver antennas (24, 25, 26; 27, 28, 29; 30, 31, 32; 33, 34, 35), where each transmitter array antenna (7) have at least two sub-antennas (12, 13, 14, 15, 16, 17, 18, 19) that are vertically spaced from each other, where each sub-antenna (12, 13, 14, 15, 16, 17, 18, 19) have at least one antenna element (20, 21), and where each receiver antenna (24, 25, 26; 27, 28, 29; 30, 31, 32; 33, 34, 35) have a plurality of series fed antenna elements (22, 23) formed in a vertically extending column. Each sub-antenna (12, 13, 14, 15, 16, 17, 18, 19) is connected to the transceiver arrangement (4a, 4b, 4c, 4d) that is adapted to feed the corresponding sub-antenna (12, 13, 14, 15, 16, 17, 18, 19) with a controllable phase, such that each transmitter array antenna (7) is adapted to provide a transmitter antenna beam (361, 362) that is controllable in an elevation direction (401, 402).

A system herein includes one or more processors to determine asymmetric compensation measurements from at least one receiver antenna pair and at least one transmitter antenna pair on a tool body in an underground formation. The asymmetric compensation measurements are to be used with symmetric compensation measurements from the plurality of antenna pairs. The asymmetric compensation measurements are associated with signals from individual transmitter antennas that are at asymmetric or unequal distances from individual receiver antennas that receive a version of the signals. The individual receiver antennas are part of the at least one receiver antenna pair having symmetrically located receiver antennas with respect to a midpoint of the tool body and the individual transmitter antennas are part of the at least one transmitter antenna pair having symmetrically located transmitter antennas with respect to a midpoint of the tool body.

A wireless transmission system includes a transmitter antenna, a sensor, a demodulation circuit, and a transmitter controller. The sensor is configured to detect electrical information associated with AC wireless signals, the electrical information including, at least, a voltage of the AC wireless signals. The demodulation circuit is configured to receive the electrical information from the at least one sensor, detect a change in the electrical information, determine if the change in the electrical information meets or exceeds one of a rise threshold or a fall threshold, if the change exceeds one of the rise threshold or the fall threshold, generate an alert, and output a plurality of data alerts. The transmitter controller is configured to receive the plurality of data alerts from the demodulation circuit, and decode the plurality of data alerts into the wireless data signals.

The disclosure provides an example Full Duplex-based ISAC optimization system. The system includes: (a) a Full Duplex (FD) massive MIMO Base Station (BS) node configured to operate at mmWave frequencies and having a plurality of transmitter antenna elements and a plurality of receiver antenna elements configured to communicate in a DownLink (DL) direction with a plurality of mobile users that each have a plurality of antenna receiver elements, where the plurality of RX antenna elements of the FD massive MIMO BS node are configured to receive DL signals reflected by a plurality of radar targets, and (b) at least one processor detects the plurality of radar targets randomly distributed within a communication environment based on the reflected DL signals, where the processor determines an estimation of a Direction of Arrival (DoA), a range, and a relative velocity for radar targets while optimizing a DL communication rate to the mobile users.

Fabric-based antennas for wireless power withing vehicle interiors are described. In some aspects, a vehicle interior product wireless power system comprises a transmitter electronic housing unit electrically connected to a wire harness of a vehicle. The system further comprises a first tuning and matching PCB electrically connected to the transmitter electronic housing unit, a transmitter antenna electrically connected to the first tuning and matching PCB, a receiver antenna for capturing flux from the transmitter antenna, a second tuning and matching PCB electrically connected to the receiver antenna, and a receiver electronic housing unit electrically connected to the second tuning and matching PCB. The receiver electronic housing unit may be electrically connected to loads or vehicle functions embedded into a vehicle interior product, such as a car seat, center console, or infotainment system.

A wireless power transmission system includes a transmitter antenna, a transmission controller, an amplifier, and a variable resistor. The transmission controller is configured to (i) provide a driving signal for driving the transmitter antenna based on an operating frequency for the wireless power transfer system and (ii) perform one or more of encoding the wireless data signals, decoding the wireless data signals, receiving the wireless data signals, or transmitting the wireless data signals. The variable resistor is in electrical connection with the transmitter antenna and configured to alter a quality factor (Q) of the transmitter antenna, wherein alterations in the Q by the variable resistor change an operating mode of the wireless power transmission system.

An antenna calibration system and method use a transmitter antenna array and a receiver antenna array. Calibration automatically initiates in response to a trigger condition. Each receiver antenna in the receiver antenna array receives frequency-modulated signals from the transmitter antenna array. Optionally, the transmitter antenna array transmits signals of increasing frequency ("up chirps") and / or signals of decreasing frequency ("down chirps"). The frequency-modulated signals are processed through matched filters to determine filter responses. The phase differences for each receiver antenna are calculated based on the filter responses. Calibration coefficients for each receiver antenna are generated based on the calculated phase differences. The phase of signals received from the receiver antennae are then adjusted using the respective calibration coefficients.

A method for authorizing the use of a motor vehicle, in particular a two- or four-wheeled vehicle, which has at least a first antenna and a second antenna that are spatially spaced apart from each other, by means of a portable identification transmitter having an identification transmitter antenna, comprising the following steps: - the first antenna transmits a first signal which is received by the identification transmitter antenna, - the identification transmitter determines at least one of the spatial components of the first electromagnetic field of the received first signal, - the second antenna transmits a second signal which is received by the identification transmitter antenna, - the identification transmitter determines at least one of the spatial components of the second electromagnetic field of the received second signal, preferably using an angle-resolving magnetic field sensor.- The identification transmitter transmits a measure or value for the determined at least one spatial component of the first electromagnetic field of the received first signal and a measure or value for the determined at least one spatial component of the second electromagnetic field of the received second signal to the motor vehicle; - A computer, preferably a computer in the motor vehicle, determines an angle at least between the determined spatial component of the first electromagnetic field of the received first signal and the determined spatial component of the second electromagnetic field of the received second signal; and - The motor vehicle only provides an authorization signal for authorizing the use of the motor vehicle if the determined angle exceeds a predetermined threshold, characterized in that- that the threshold value increases as the distance between the identification device and the vehicle decreases.

This invention provides a wireless communication link selection method and a half-duplex communication system for selecting multiple physical wireless communication links between a transmitter and a receiver in a half-duplex communication system. Both the transmitter and receiver are equipped with switching switches and antennas. The method includes: the transmitter and receiver synchronously and sequentially switching their respective antennas into working states according to their pre-stored switching switch timing sequences; when any transmitter antenna and any receiver antenna are simultaneously in working states, a wireless communication link is formed, and each wireless communication link is traversed at least once; during the transmission period of any wireless communication link, the receiver transmits unidirectional heartbeat packets or time-division bidirectional heartbeat packets with the transmitter through the current wireless communication link; the transmitter and / or receiver that receives the heartbeat packet selects the optimal wireless communication link from the multiple wireless communication links based on the signal strength and packet error rate during the heartbeat packet transmission process.

A wireless short hop assembly includes a transmitter antenna and an integrated receiver / pulser module. A receiver antenna and a pulser assembly are consolidated into the receiver / pulser module. The transmitter antenna is configured to transmit, via magnetic flux induction, a magnetic carrier wave conveying a wireless signal to the receiver antenna. When the wireless short hop assembly is deployed on subterranean drilling bottom hole assembly (BHA) such that a shock reduction tool is interposed on the BHA between the transmitter antenna and the integrated receiver / pulser module, the integrated receiver / pulser module positions the receiver antenna closer to the shock reduction tool and the transmitter antenna than if the receiver antenna and the pulser assembly were discrete. The wireless signal as received by the receiver antenna is stronger and more stable than if the receiver antenna and the pulser assembly were discrete.

Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.

The invention discloses a transmitter antenna feeder overtemperature protector which comprises a main control unit, a switching power supply, a human-computer interface, a TCP / IP interface, an RS232 interface, a temperature sensing optical fiber and a detector. The temperature-sensing optical fiber clings and is fixed along the transmitter antenna feeder; the detector is connected with one end of the temperature-sensing optical fiber; the main control unit is connected with the switch through a TCP / IP interface to communicate with the detector, reads the temperature value of each temperature measurement point in real time, is in communication connection with the transmitter main controller, and sends a control instruction to close or reduce the transmitting power according to the temperature rise amplitude; the main control unit also has a data calibration function and is used for eliminating temperature deviation and processing temperature data by adopting a filtering algorithm; and the main control unit stores the processed temperature data in a local storage device in real time. According to the transmitter antenna feeder overtemperature protector, the temperature of each node of an antenna feeder system link is monitored in real time, an alarm is given out when the temperature rise is abnormal, a control instruction is sent to close or reduce the transmitting power, the transmitter is effectively prevented from being damaged, and safe broadcasting of radio and television is guaranteed.

The application discloses an analyte detection device with embedded circuit, which is characterized in that an electronic circuit is arranged in an upper shell or a lower shell, and the electronic circuit comprises at least one electronic component, and the electronic component at least comprises a transmitter antenna and the like, so as to form an analyte detection device with high integration and embedded electronic circuit and shell, and the space occupied by the electronic circuit is less, and the miniaturization design requirement of the analyte detection device is met.

The present disclosure generally relates to a system and method for testing a device-under- test (DUT), the system comprising a receiver antenna and a transmitter antenna, wherein the DUT is configured to be coupled to or is formed at least partially by the transmitter antenna or the receiver antenna, a receiver processing unit configured to be electrically coupled to the receiver antenna, and a reverberation chamber including configuration means for changing an electromagnetic (EM) reflection behavior inside the reverberation chamber between a plurality of states, and being configured to receive the receiver antenna and the transmitter antenna. The system is configured to perform a plurality of measurements, wherein for each measurement: the reverberation chamber is configured in a respective state among the plurality of states; the transmitter antenna is configured to emit EM waves inside the reverberation chamber based on a modulated signal, wherein the modulated signal includes a frequency chirp in a predetermined frequency range; the receiver antenna is configured to receive said EM waves and provide a receiver signal; and the receiver processing unit is configured to sample the receiver signal in the time-domain to obtain a sampled time-domain signal. The system is further configured to obtain a test result associated with the DUT based on the sampled time-domain signals associated with the plurality of measurements.

Multiple-In-Multiple-Out ("MIMO") antenna array device for radar, comprising the following: a receiver antenna arrangement, wherein the receiver antenna arrangement comprises a plurality of receiver antenna elements (152A,..., 152N) of an antenna array arranged in a pattern such that a first receiver antenna element (RX1) is located approximately one unit away from a second receiver antenna element (RX2), a third receiver antenna element (RX3) is located approximately two units away from the second receiver antenna element (RX2), and a fourth receiver antenna element (RX4) is located approximately four units away from the first receiver antenna element (RX1); and a transmitter antenna arrangement, wherein the transmitter antenna arrangement comprises one or more transmitter antenna elements (146A,...,146N) of an antenna array arranged in a pattern such that a first transmitter antenna element (TX1) is placed at a distance of approximately five units from the third receiver antenna element (RX3), and wherein the first transmitter antenna element (TX1) and the third receiver antenna element (RX3) are placed on one side of a printed circuit board.

Systems and methods for performing computerized tomography using low frequency electromagnetic radiation are disclosed. In one embodiment, a system for performing computerized tomography of an object under test using low frequency electromagnetic radiation comprises: a transmitter antenna configured to emit low frequency electromagnetic radiation towards the object under test; and a receiver comprising a metasurface having a plurality of receiver antennas configured to receive the low frequency electromagnetic radiation emitted from the transmitter antenna after passing through the object under test.

The present disclosure generally relates to a system and method for testing a device-under-test. The system comprises: a transmitter antenna and a receiver antenna, wherein the DUT is configured to be coupled to or is at least partially formed by the receiver antenna; a reverberation chamber including configuration means for changing an electromagnetic, 'EM', reflection behavior inside the reverberation chamber between a plurality of states; and a measurement unit. The system is configured to perform a plurality of measurements, wherein, for each measurement: the reverberation chamber is configured in a respective state among the plurality of states; the transmitter antenna is configured to emit EM waves inside the reverberation chamber based on a multitone signal; and the receiver antenna is configured to receive said EM waves and provide a receiver signal based on the received EM waves. The measurement unit is configured to determine a test result associated with the DUT based on the receiver signal associated with each of the plurality of measurements.

A wireless short hop assembly includes a transmitter antenna and an integrated receiver / pulser module. A receiver antenna and a pulser assembly are consolidated into the receiver / pulser module. The transmitter antenna is configured to transmit a wireless signal to the receiver antenna. When the wireless short hop assembly is deployed on subterranean drilling bottom hole assembly (BHA) such that a shock reduction tool is interposed on the BHA between the transmitter antenna and the integrated receiver / pulser module, the integrated receiver / pulser module positions the receiver antenna closer to the shock reduction tool and the transmitter antenna than if the receiver antenna and the pulser assembly were discrete. The wireless signal as received by the receiver antenna is stronger and more stable than if the receiver antenna and the pulser assembly were discrete.

A wireless transmission system includes a transmitter antenna, a sensor, a demodulation circuit, and a transmitter controller. The sensor is configured to detect electrical information associated with AC wireless signals, the electrical information including, at least, a voltage of the AC wireless signals. The demodulation circuit is configured to receive the electrical information from the at least one sensor, detect a change in the electrical information, determine if the change in the electrical information meets or exceeds one of a rise threshold or a fall threshold, if the change exceeds one of the rise threshold or the fall threshold, generate an alert, and output a plurality of data alerts. The transmitter controller is configured to receive the plurality of data alerts from the demodulation circuit and decode the plurality of data alerts into the wireless data signals.

A wireless power transmission system includes a transmitter antenna, a transmission controller, an amplifier, and a variable resistor. The transmission controller is configured to (i) provide a driving signal for driving the transmitter antenna based on an operating frequency for the wireless power transfer system and (ii) perform one or more of encoding the wireless data signals, decoding the wireless data signals, receiving the wireless data signals, or transmitting the wireless data signals. The variable resistor is in electrical connection with the transmitter antenna and configured to alter a quality factor (Q) of the transmitter antenna, wherein alterations in the Q by the variable resistor change an operating mode of the wireless power transmission system.

Systems and methods for wireless charging of a battery pack. One system includes a plurality of battery packs and a wireless charger. Each of the plurality of battery packs includes a receiving antenna configured to convert an alternating current power to a charging current. The wireless charger includes an alternating current to direct current converter, a transmitter antenna configured to convert direct current power received from the alternating current to direct current converter to the alternating current power and transmit the alternating current power to each of the plurality of battery packs. The wireless charger also includes a communication circuit configured to transmit communication signals to an external device.

Wireless power transfer systems, disclosed, include a wireless power transmission system and a wireless power receiver system. The wireless power transmission system includes a transmitter antenna configured to couple with a receiver antenna to transmit alternating current (AC) wireless signals to the receiver antenna. Antenna coupling may be inductive and may operate in conformance to a wireless power and data transfer protocol. A transmission controller drives the transmitter antenna at an operating frequency, and either the wireless power transmission system or the wireless power receiver system may damp the wireless power transmission to create a data signal containing a serial asynchronous data signal.

A hybrid EM-LC resonator for a wireless power transfer (WPT) system includes a plurality of capacitive loops and LC circuits each having mutual inductance in a non-resonant mode of operation. The resonator is useful in a wireless energy transfer system. The system comprises a transmitter antenna assembly and a receiver antenna assembly, wherein each antenna assembly comprises at least two circuits isolated from each other. One way of isolating circuits is to place them at a pre-selected distance from each other, as shown below. It is required to sufficiently separate the circuits to allow for a relatively loose coupling between them.

The present disclosure presents wireless power transfer systems and related methods. One such system comprises a transmitter antenna configured to transmit a radiative power signal; a receiver antenna configured to capture the transmitted radiative power signal; and a rectifier circuit coupled to the receiver antenna and configured to convert the captured radiative power signal to DC power. Accordingly, the transmitter antenna, the receiver antenna, and the rectifier circuit are each formed of a combination of ferromagnetic and non-ferromagnetic conductors in alternating multilayers

This disclosure relates to a Doppler frequency division multiplexing (DDM) MIMO radar system. An example embodiment includes a Doppler frequency division multiplexing (DDM) MIMO radar system (400) comprising: a transmitter (401) that transmits signals via different electrical lengths (L... 1‑N ) corresponding to multiple signal paths (403) 1‑N ) connected to multiple transmitter antennas (402) 1‑N ), such that the phase of the signal transmitted by the transmitter (401) is such that the phase of the signal transmitted by the plurality of transmitter antennas (402) is such that the phase of the signal transmitted by the transmitter (401) is such that the phase of the signal transmitted by the transmitter antenna (402) is such that the phase of the signal transmitted by the transmitter antenna (401 ... 1‑N The difference is at each transmitter antenna in the )

A power-transmitter controller (70) of a power transmitter device (20) compares a magnitude of a current flowing through a power transmitter antenna (22) or its correlation value with a threshold, energizes a power transmitter antenna when determining that there is a power supply request based on a power supply request signal received by a power-transmitter communication antenna (40), determines whether the relative positional relationship between the power transmitter antenna and the power receiver antenna (102) is appropriate, and stops the power supply to the power transmitter antenna when determining that the relative positional relationship is not appropriate. On the other hand, the power-transmitter control unit changes, based on a traveling speed signal received by the power-transmitter communication antenna, the threshold to narrow a range of the relative positional relationship that is determined to be appropriate when the traveling speed is lower than a predetermined speed, compared with a case where the traveling speed is not lower than the predetermined speed.

The power-receiver control unit (230) supplies a stop request signal, which indicates a request to stop power supply to a power transmitter antenna, to a power-receiver communication antenna (170), when a specified stop condition, which is for requesting the power transmitter antenna (22) to stop supplying power, is satisfied. When determining that there is a power supply stop request based on the stop request signal received by the power-transmitter communication antenna (40), the power-transmitter control unit (70) stops the power supply prior to determination that there is a power supply request. The power-receiver control unit determines that a function of the power-receiver communication antenna to transmit the stop request signal or a function of the power-transmitter communication antenna to receive the stop request signal is abnormal, based on power supply that is performed even though the stop request signal is supplied to the power-receiver communication antenna.

Embodiments of door charging systems are described. In some aspects, a system for a removable vehicle door configured for wireless power includes a receiver antenna configured to be embedded within a door of a vehicle hinge, one or more receiver electronic housing units configured to be electrically connected to the receiver antenna, one or more transmitter electronic housing units embedded near a pillar of the vehicle and configured to be electrically connected to the transmitter antenna, and the transmitter antenna configured to be embedded within a hinge of a pillar of the vehicle.