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Updated: Jul 21, 2026

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
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一个宽带和紧的quasi-Yagi天线,基于伪造表面等离子体极子子

Farshad Arghandeh1, Bijan Abbasi-Arand2, Maryam Hesari-Shermeh1

  • 1Department of Electrical and Computer Engineering, Tarbiat Modares University, Tehran, 14115-194, Iran.

Scientific reports
|July 8, 2023
PubMed
概括

一个新的宽带终火天线利用伪造的表面等离子体极子子 (SSPP) 传输线路进行高效的信号传输. 这种创新设计在广泛的频率范围内实现了高收益和高效率.

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Polar Coordinates: Problem Solving01:27

Polar Coordinates: Problem Solving

Directional radiation patterns are central to antenna analysis, as they illustrate how signal strength varies with direction. These patterns are often modeled using polar plots, where the radial distance from the origin represents signal intensity at a given angle. A commonly used idealized form is the four-lobed rose curve, which captures the concept of directional beams in a simplified mathematical form.The four-lobed rose curve, described by r = cos⁡(2θ), features four symmetric lobes, each...