Artemis is Nasa’s return-to-the-moon programme. The project’s first mission, known as Artemis I, involved an uncrewed Orion ...
Abstract: In this paper, we propose a low-profile and compact antenna that combines a top-loaded monopole antenna with an omnidirectional radiation pattern in the horizontal plane and a two-element ...
Abstract: We propose a directive antenna for borehole radar using a horizontally polarized wave in a vertical borehole. This antenna is an array of several horizontal loop antennas, arranged ...
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