Beamforming is an established technology for cellular communications and other applications (see the previous article on “What is beamforming?”). Beamforming was initially developed based on various analog signal chain techniques and processes. In general, beamforming combines antenna array elements to direct signals at controlled angles to maximize signal reception at specific receivers. Analog beamforming can […]
Wireless
What is beamforming?
Beamforming is used in various applications, including sensor arrays, radar, biomedicine, WiFi, and wireless communications. It is an active approach that combines antenna array elements to direct signals at specific angles and create constructive interference. In contrast, other signals are subjected to destructive interference to maximize signal transmission and/or reception. Beamforming can improve the spatial […]
What is precoding and what are the benefits?
Precoding involves preprocessing of the transmit signal in an RF system. As described below, precoding uses channel state information at the transmitter to improve performance and increase spectral efficiency. It is used to implement the superposition of multiple beams, including several different data streams of information for spatial multiplexing. Precoding is the transmitter signal processing […]
Software predicts changes in wireless channels
Spectrum Multiplier software from Cohere Technologies uses Delay-Doppler effects to predict how a wireless channel will change in real time, letting base stations control MU-MIMO beams.
Waveguide-to-coax adapters use European IEC standard flanges
A new line of euro-style flange, waveguide-to-coax adapters are candidates for radar, satellite and wireless communications, and test instrumentation applications. Fairview Microwave’s new waveguide-to-coax adapters cover a wide range of waveguide sizes that include European IEC standard flanges (including UBR square cover, UDR and PDR types), WR-22 to WR-430, right-angle and end-launch coaxial connector options, […]
Five reasons why TSN over 5G promises timely deliveries
The Time Sensitive Networking (TSN) family of IEEE 802.1 network standards bring reliability and low latency to applications over Ethernet, Wi-Fi, and 5G.
Antennas and antenna measurements
Most antenna designs operate via the resonance principle, which is based on the fact that electrons moving through a conductor reflect back toward the power source when encountering a discontinuity. When current, caused by a radio signal’s induced voltage, reaches the end of the antenna element, it is reflected, travels in the reverse direction, and […]
Compact 6.4-GHz signal generator is software-tunable
The Windfreak Technologies SynthUSB3 is a pocketable 12.5-MHz to 6.4-GHz software-tunable RF signal generator and frequency sweeper that can be controlled and powered by any device running Windows, Linux or Android via a USB port. The SynthUSB3 also has built-in nonvolatile flash memory so it can be programmed to operate by itself without requiring a […]
AWG/digitizer combo hits 1.25 GS/sec
The hybridNETBOX is an instrumentation platform that combines a multi-channel arbitrary waveform generator (AWG) and a digitizer in a single portable unit. With their unique capability for simultaneous signal generation and acquisition, these powerful tools are candidates for applications involving stimulus-response or closed-loop type testing. In total, 14 different hybridNETBOX-models are available, with 2+2, 4+4 […]
5G lab tests hardware, software, and use cases
When complete, Altran’s 5G test lab will emulate all parts of a network, letting hardware engineers, network engineers, and software developers test products at any point in the 5G network. 5G Technology World interviewed Altran’s Shamik Mishra, CTO Connectivity, about the lab.