A Yagi–Uda antenna, or simply Yagi antenna, is a directional antenna consisting of two or more parallel resonant antenna elements in an end-fire array; [1] these elements are most often …

The JK Big-Tri has been designed for Hams looking for a slightly longer boom Tribander while enjoying maximum performance on 20/15/10. This Tri-Bander's elements follow the same …

JK Antennas JK-Big-Tri HF Yagis have been designed for Radio Amateurs looking for a slightly longer-boom tri-band antenna, while enjoying maximum performance. Employing 16 elements …

So how much bigger would we have to make a Yagi in order to increase its gain by 3dB? If you think about it, the answer is obviously about twice as big. Consider Figs. 1a and 1b. This is a …

2019年12月24日 · In this article I will discuss how high a horizontally oriented yagi needs to be raised for reliable impedance matching, and then how to adjust the physical antenna so that it …

2024年2月26日 · The Yagi-Uda antenna, also known as Yagi antenna, catches TV and radio signals. Invented by Japanese scientists Hidetsugu Yagi and Shintaro Uda in the 1920s, it's …

2025年1月31日 · Big-AGI is a groundbreaking AI suite designed to democratize access to advanced artificial intelligence for everyone. From professionals and developers to AI …

2017年8月2日 · Here are two videos on how to setup and tram your big yagi. Ray W2RE from HudsonValleyTowers with 20+ years of tower experience walks you through the process from …

2014年4月17日 · Abstract: A novel slot Yagi-like multilayered antenna with the feasibility of obtaining high gain and large bandwidth is proposed and demonstrated at 4.2 GHz. The key …

2017年5月24日 · To understand the Yagi’s design, recall that a plain old dipole antenna in free space has a radiation pattern that is the strongest broadside to the antenna. That results in …