Abstract: In this letter, an electrically small Vivaldi antenna using active matching is presented for wideband applications. The structure consists of a passive Vivaldi antenna and a non-Foster ...

Vivaldi Workspaces might be a simple feature, but it can boost your productivity when you have tons of opened tabs for various projects.

Wed 10 Dec 2025 at 7:00am Wednesday 10 Dec 2025 at 7:00am Wed 10 Dec 2025 at 7:00am Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Hear the Sydney ...

Abstract: A balanced antipodal Vivaldi antenna is designed to be used as a sensor for a microwave breast cancer detection system. The antenna has the ability to send short electromagnetic pulses into ...

An annual holiday concert hosted by Central Presbyterian Church in Tarentum has been moved because the building is without heat. Church administrator Dave Rankin said the steam boiler at the church ...

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