American space agency NASA is preparing the Near Space Network and the Deep Space Network to keep in touch with the Artemis II astronauts.

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For a young boy, listening to the radio program ‘Sergeant Preston of the Yukon’ could fire the imagination of daring ...

Some amateur radio operators this past weekend took part in an annual, nationwide Winter Field Day aimed to test their communication skills in adverse, wintry weather conditions. What perfect timing.

I’m a mechanical engineer with more than 30 years of experience in industrial automation and design, with projects ranging from individual inventors to international corporations. I hold credit on six ...

F1 race winners Valtteri Bottas and Sergio Perez return with Cadillac. There’s sibling rivalry over a driver simulator at home with Haas star Ollie Bearman and his brother. Show more The new Cadillac ...

Abstract: A new approach is proposed to develop aperture-shared dual-band antennas using partially reflecting surfaces (PRSs). A fully aperture-shared dual-band antenna consisting of a low-band ...

Abstract: A compact dual-band antenna element is presented that operates in the bands 0.617-0.894GHz (36.7% fractional bandwidth), and 1.69-2.4 GHz (34.7% fractional bandwidth). The dual-band antenna ...