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Disasters at sea remind us repeatedly of the importance of underwater (seawater) research; including the design and analysis of short range, high bandwidth (MHz), higher data rates (Mbps) and high propagation velocity approximately near to free space (≈3*107 m/sec with minimum latency) underwater electromagnetic (EM) communication systems. This article discusses details about this type of communications.
Wi-Fi 6E utilizes the newly assigned 6 GHz frequency band to enable high-bandwidth applications that require ultra-fast data throughput and low latency connectivity.
Ka-band in satellite communications plays an increasing important role today. However, at higher frequencies, electromagnetic wave absorption increases. At Ka-band frequencies this can lead to service interruptions and performance degradation during rain fades. With high atmospheric losses, conventional fade margin approaches such as adaptive-waveform techniques or adaptive-power control techniques are not sufficient for compensation. For reliable and highly available operations, only site diversity configurations on the ground provide an adequate, fail safe solutions.
There is a wide range of SDRs, from basic to highly complex, that serve a multitude of purposes for a range of applications, that are still being uncovered. Read this article about the various factors for SDR performance and example applications.
Instead of the manpower and weapons that dominated the battlefield of the past, today’s powers vie for superiority in the electromagnetic spectrum. Deployment of this technology often requires a physical vehicle like a drone.
Read this review of the various test solutions offered today for mmWave semiconductor development and testing. Companies covered include Anritsu, Focus, FormFactor, Keysight, Maury, NI, R&S, Roos and Teradyne.
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