Abstract: A radio module is configured to operate within a specialized frequency band, for example a band that has recently become available for use in the public domain. Superheterodyne techniques are used by a transmitter component of the radio module to frequency shift a conventional wireless data signal (e.g., used for WiFi, LTE telecommunications, etc.) into a designated band; a receiver component of the radio module is similarly configured to receive signals transmitted on the designated band and shift back into the conventional RF band (where standard components are able to further process the received signal).

Abstract: Various embodiments of the present invention relate to an electronic device having covers which may be coupled and an operating method thereof, the electronic device may include a housing; a first cover coupled with at least part of the housing, and comprising at least one first identification terminal; a second cover coupled with at least part of the first cover, and comprising at least one second identification terminal which is electrically connectable with the first identification terminal; and a processor. The processor may be configured to obtain at least one of first information related to the first cover or second information related to the second cover, identify at least one of a type of the first cover or a type of the second cover based on at least one of the first information or the second information, and perform a designated operation based on at least one of the type of the first cover or the type of the second cover. Other various embodiments are possible.

Abstract: A radio-frequency signal receiver/transmitter circuit includes a power amplifying circuit that amplifies a radio-frequency transmit signal for output, at least one duplexer including a transmit filter for passing the radio-frequency transmit signal and a receive filter for passing a radio-frequency receive signal, a switch that electrically connects between the power amplifying circuit and the transmit filter, and a control circuit that controls enabling/disabling the power amplifying circuit, that controls connection of the switch, and that controls switching the receive filter between first bandpass characteristics and second bandpass characteristics. The receive filter switches between the first bandpass characteristics and the second bandpass characteristics, in which attenuation is relatively less than that in the first bandpass characteristics.

Abstract: Aspects of the present disclosure provide a simplified solution for proximity detection of an object in a wireless communication that does not require complex hardware to maintain mutual coupling reference signal. Specifically, in accordance with aspects of the present disclosure, the received signal that may include the mutual coupling signal and target signal may be multiplied by itself to extract the delay information associated with the target signal. The techniques outlined here may provide a greater robustness to variations of mutual coupling induced by phone covers, for example, being added by the user.

Abstract: Testing apparatuses, and methods for using such apparatuses to calibrate and test an antenna, include a chamber that includes a lining, the lining being made from a material that is absorptive to radiation at a test wavelength. An adjustable platform is positioned at a first side of the chamber, the adjustable platform being rotatable to change an orientation of a device under test. A probe is positioned at a second side of the chamber, opposite to the first side of the chamber, that measures electromagnetic radiation from the device under test. A vector network analyzer communicates with the device under test and the probe to determine calibration information for the device under test.

Abstract: Wireless signal processing may be improved by using a configurable baseband filter (BBF) in the receive path of a transceiver. A configurable BBF may accommodate processing of different wireless signals in a single integrated circuit (IC) chip. For example, a single IC may support processing of 5G mmWave RF signals and 5G sub-7 GHz RF signals by reconfiguring the BBF with settings appropriate for the different wireless signals. The reconfiguring of the BBF may include adjusting a bandwidth of the BBF and/or adjusting a filter order of the BBF. The reconfiguring of the BBF may be performed in response to detection of jammer signals to improve rejection of the jammer signals.

Abstract: Examples described herein include systems and methods which include wireless devices and systems with examples of multiple frequency bands transmission with a recurrent neural network that compensates for the self-interference noise generated by power amplifiers at harmonic frequencies of a respective wireless receiver. The recurrent neural network may be coupled to antennas of a wireless device and configured to generate the adjusted signals that compensate self-interference. The recurrent neural network may include a network of processing elements configured to combine transmission signals into sets of intermediate results. Each set of intermediate results may be summed in the recurrent neural network to generate a corresponding adjusted signal. The adjusted signal is receivable by a corresponding wireless receiver to compensate for the self-interference noise generated by a wireless transmitter transmitting on the same or different frequency band as the wireless receiver is receiving.

Abstract: According to various embodiments, an electronic device may comprise: a communication circuit which comprises a first antenna component and a second antenna component to determine a first value through the first antenna component and determine a second value through the second antenna component; a processor; and at least one memory, wherein the at least one memory has instructions stored therein which cause, when executed, the processor to: determine whether a first module disposed in the vicinity of the first antenna component has started operating; compensatively adjust a first value obtained during the operation of the first module, by using a first value obtained before the operation of the first module or a second value obtained during the operation of the first module, in response to the determination as to whether the first module has started operating; and operate the communication circuit according to a first value obtained by the compensation, wherein the first value obtained during the operation of

Abstract: A mounting system for an electronic device provides wireless power and wireless communications to the electronic device. The mounting system includes a transmitter coil arranged on a vehicle component, and an adaptor that selectively attaches to the vehicle component and includes a receiver coil. The coils are inductively coupled when they are within a predetermined distance from each other, whereby the receiver coil wireless receives communication signals and electrical power transmitted from the transmitter coil. The electronic device is mounted on the adaptor, and thus mounted on the vehicle component. The electronic device is electrically connected to the receiver coil, and thus receives the electrical power and communication signals from the receiver coil.

Abstract: The present disclosure relates to manufacture of an active array antenna from a combination of modular sub-arrays, nominally of equal size; each sub-array being associated with a separate receiver and/or transmitter. A solution to calibrating a modular array is the inclusion of a calibration manifold having multiple 1st ports that connect to respective sub-arrays between their passive network and their respective receiver and/or transmitter. Each of the first ports communicate with a common second port through which a signal can be introduced in order to be received at each element of each sub array, or through which a signal from any element of any sub-array can be received. This allows any element of the sub array to be calibrated at any time including during operation.

Abstract: An RF device may include RF circuitry having a PIN diode configured to switch an RF signal, and a biasing circuit. The biasing circuit may include a controllable power supply having a control input and an current output coupled to the PIN diode to selectively bias the PIN diode into an ON state, and a feedback circuit coupled between the current output and the control input of the controllable power supply to set a current delivered to the PIN diode in the ON state.

Abstract: In the field of communications assemblies, particularly those arising in connection with high voltage direct current (HVDC) power converters, there is provided a communications assembly (10) that comprises a first module (12) which is arranged in operative communication with a second module (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) via a communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H). At least one of the first module (12) and the second module (14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H) have a receiver (24) that includes a squelch filter (26) which is configured to operate in a first normal mode and a second test mode. The squelch filter (26) normally operates in the first normal mode to suppress a signal output (28) from the receiver (24) when the strength of an input signal (30) received by the receiver (24), via the communication conduit (16A, 16B, 16C, 16D, 16E, 16F, 16G, 16H), falls below a normal threshold.

Abstract: Aspects of the subject disclosure may include, for example, receiving, by a radio frequency (RF) mechanical device, signals relating to one or more crossed-dipole radiating elements of an antenna system, performing, by the RF mechanical device, polarization rotation of the signals to derive output signals having polarizations that are rotated in a manner that mimics physical rotation of the one or more crossed-dipole radiating elements, and providing, by the RF mechanical device, the output signals to enable avoidance of interference. Other embodiments are disclosed.

Abstract: A wireless communications apparatus includes wireless circuits configured to transmit and receive signals. One of the wireless circuits is a first circuit for a fifth-generation mobile communications system. One of the wireless circuits that is different from the first circuit is a second circuit that is likely to be influenced by a transmission signal to be transmitted from the first circuit. The second circuit includes an attenuator configured to attenuate a reception signal received by the second circuit. The wireless communications apparatus includes a controller configured to (i) execute attenuation control to direct the transmission signal to pass through the attenuator if a predetermined signal condition is satisfied, and (ii) keep from executing the attenuation control if the predetermined signal condition is not satisfied, the predetermined signal condition being satisfied if the second circuit is highly likely to be influenced by the transmission signal received as the reception signal.

Abstract: Provided is a method for matching antenna impedance in a wireless communication system. The method includes determining an approximate reflection coefficient based on an input signal and an output signal of a bidirectional coupler connected to a signal path of an antenna; determining an antenna impedance matching parameter corresponding to the determined approximate reflection coefficient by using a lookup table; and performing antenna impedance matching based on the antenna impedance matching parameter.

Abstract: Aspects of this disclosure relate to a hybrid acoustic LC filter cascaded with a non-acoustic LC filter. The hybrid acoustic filter can filter a radio frequency signal. The hybrid acoustic LC filter can include acoustic resonators, an inductor, and a capacitor. The inductor and capacitor can be external to an acoustic resonator die. The non-acoustic LC filter includes an LC circuit. Related multiplexers, wireless communication devices, and methods are disclosed.

Abstract: A method for deploying an electromagnetic wave guiding structure includes a communication dead zone analysis step and an improvement measure determination step. In the former step, a frequency band in use and an electromagnetic wave signal strength threshold value are preset, and a processing module creates an electromagnetic map for the electromagnetic wave intensity over an area in the frequency band in use based on an electronic map of the area, wherein the electromagnetic map shows a communication dead zone. In the latter step, the processing module obtains an existing electromagnetic wave path according to the electromagnetic map and infers from the existing electromagnetic wave path the installation position and type of at least one electromagnetic wave guiding structure assembly suitable for use to guide the electromagnetic wave to the communication dead zone and ensure that the coverage ratio of the electromagnetic wave in the area reaches a threshold value.

Abstract: Provided are an electronic device, a body-worn type device, a communication system, a communication controlling method and a storage medium which make it possible to appropriately perform necessary data communication while more reducing power consumption of the body-worn type device. The electronic device includes a transceiver which performs communication via short-range wireless communication, a memory which stores identification data on each electronic device which is communicable with the body-worn type device via the transceiver, and a processor which, in a case where communication connection is established between any one of the electronic devices which are contained in the identification data and the body-worn type device, operates to perform data transmission and reception between its own device and the body-worn type device via another electronic device that the communication connection with the body-worn type device is established.

Abstract: A radio-frequency module includes a module substrate having a first major surface and a second major surface, a first receive filter configured to pass a receive signal in a first communication band, a second receive filter configured to pass a receive signal in a second communication band, an antenna switch configured to control connection between the first receive filter and an antenna connection terminal and also control connection between the second receive filter and the antenna connection terminal, and a matching circuit coupled between the antenna connection terminal and the first receive filter. The matching circuit includes matching switches and at least one of an inductor and a capacitor. The first receive filter and the second receive filter are disposed at the first major surface. The antenna switch and the matching switches are included in a single semiconductor integrated circuit disposed at the second major surface.

Abstract: An antenna calibration system for a phased array antenna in accordance with one embodiment of the present disclosure generally includes: a beamformer lattice including at least first and second beamformers, each corresponding to a subset of antenna cells, and each including a calibration section for comparing a reference signal to a non-reference signal; and a calibration antenna within the subset of antenna cells corresponding with the first beamformer, wherein the calibration antenna is configured to deliver a first reference signal (mTx) from the first beamformer to be received by a first operating antenna for comparison with a first non-reference signal (Rx) in the first beamformer or in the second beamfomer, and/or wherein the calibration antenna is configured to deliver a second non-reference signal (Tx) from a second operating antenna for comparison with a second reference signal (mRx) in the first beamformer or in the second beamformer.