Circuit and method for modulating filter coefficients of a frequency channelizer having a filter bank include: receiving a wide spectrum input signal; modulating the filter coefficients of the filter bank to sweep a center frequency of each channel of the frequency channelizer, using a modulation scheme; and inputting frequency offset compensation caused by the modulation, and output signals of the frequency channelizer to an application processing circuit to convert the output signals to their original center frequencies.

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for a radio receiver with a hybrid channelizer architecture. In some implementations, a receiver includes an input to receive a first signal encoding digital samples of a radiofrequency signal. The receiver includes a frequency shifter configured to generate a second signal that is frequency shifted relative to the first signal. The receiver includes a first polyphase filter bank configured to receive the first signal and provide filter bank outputs for first sub-bands. The receiver includes a second polyphase filter bank configured to receive the second signal and provide filter bank outputs for second sub-bands. The receiver includes a switch network configured to select among the filter bank outputs and provide the filter bank outputs to respective digital channelizer modules for multiple channels.

In one example, a receiver includes: a low noise amplifier (LNA) to receive and amplify a radio frequency (RF) signal, the LNA having a first controllable gain; a mixer to downconvert the RF signal to an intermediate frequency (IF) signal; a programmable gain amplifier (PGA) coupled to the mixer to amplify the IF signal, the PGA having a second controllable gain; a digitizer to digitize the IF signal to a digitized signal; a digital signal processor (DSP) to process the digitized signal; a first detector to output a first detection signal having a first value in response to the IF signal exceeding a first threshold during a first detection period; and a controller to dynamically update a gain setting of one or more of the LNA and the PGA in response to the first detection signal.

In one example, a receiver includes: a low noise amplifier (LNA) to receive and amplify a radio frequency (RF) signal, the LNA having a first controllable gain; a mixer to downconvert the RF signal to an intermediate frequency (IF) signal; a programmable gain amplifier (PGA) coupled to the mixer to amplify the IF signal, the PGA having a second controllable gain; a digitizer to digitize the IF signal to a digitized signal; a digital signal processor (DSP) to process the digitized signal; a first detector to output a first detection signal having a first value in response to the IF signal exceeding a first threshold during a first detection period; and a controller to dynamically update a gain setting of one or more of the LNA and the PGA in response to the first detection signal.

Embodiments of the inventive concepts disclosed herein are directed to systems and methods for operating in multiple transmissions modes for satellite communications. A controller of a radio device may set a transmission mode of a single transceiver chain to a first communications protocol. The single transceiver chain may communicate with a satellite antenna using the first communications protocol. The controller may modify the transmission mode of the single transceiver chain from the first communications protocol to a second communications protocol. The controller may maintain synchronization for the first communications protocol. The single transceiver chain may transmit a first signal to the satellite using the second communications protocol, responsive to modifying the transmission mode. The single transceiver chain may simultaneously receive a second signal using the first communications protocol and the synchronization, and a third signal using the second communications protocol.

Disclosed is a hardware scalable channelizer (HSC). The HSC includes an integrated circuit (IC) that utilizes neuromorphic processing. The IC also includes an IC input configured to receive an input signal and a plurality of infinite impulse response (IIR) channelizer filters in signal communication with the IC input, where each IIR channelizer filter of the plurality of IIR channelizer filters is configured to select a frequency band from the input signal and provide synchronous filtering of the input signal.

A apparatus for dynamically modifying filter characteristics of a delta-sigma modulator in order to receive and transmit radio frequency signals over a wide frequency range. The system is used for wide bandwidth radio system designed to adapt to various global radio standards and, more particularly, to a cellular radio architecture that employs a combination of a single circulator, programmable band-pass sampling radio frequency (RF) front-end and optimized digital baseband that is capable of supporting all current cellular wireless access protocol frequency bands.

Disclosed in the present invention are a data transmission method, an apparatus and an antenna array, in order to realize wide bandwidth data transmission of massive antenna array. The data transmission method comprises: baseband IQ data of multiple CA is grouped via IR data interface module to obtain baseband IQ data of each CA group; for baseband IQ data of each CA group: the baseband IQ data with enhanced data rate of the CA group is up-converted to digital intermediate frequency band by a digital up-conversion module; the digital intermediate frequency signals of the CA group are superposed by a combiner to form a multi-carrier digital intermediate frequency signal; in accordance with the amplitude and phase requirements of each antenna in a group of antenna sharing the multi-carrier digital intermediate frequency signal, the amplitude and phase of the multi-carrier digital intermediate frequency signal are respectively adjusted and transmitted to a digital to analog converter of a corresponding antenna channel; a multi-carrier analog intermediate frequency signal is generated by the digital to analog converter of each antenna channel, and then is transmitted to the corresponding antenna channel.

Devices and systems useful in concurrently receiving and transmitting Wi-Fi signals and Bluetooth signals in the same frequency band are provided. By way of example, an electronic device includes a transceiver configured to transmit data and to receive data over channels of a first wireless network and a second wireless network concurrently. The transceiver includes a plurality of filters configured to allow the transceiver to transmit the data and to receive the data in the same frequency band by reducing interference between signals of the first wireless network and the second wireless network.

Systems, methods and devices to generate tailored antenna radiation patterns for particular purposes are provided. The software-defined communication devices and systems dynamically reconfigure an antenna in a controlled and reversible manner, transmit and receive signals to a plurality of endpoints simultaneously without requiring moving elements, and control radiation patterns, making them useful and more versatile for many applications, especially in implementations concerning satellite communications. Communication links may be established with multiple endpoints simultaneously, and the position of the endpoints may be learned without knowing it in advance. The configurations described in the embodiments provide great versatility due to the possibility of processing the signal at each antenna element of the antenna.