Wikipedia:Featured picture candidates/Yagi antenna animation

Yagi antenna animation

Voting period is over. Please don't add any new votes. Voting period ends on 26 Jan 2017 at 06:21:11 (UTC)

Original – How the antenna works. The radio waves from each element are emitted with a phase delay, so that the individual waves emitted in the forward direction (up) are in phase, while the waves in the reverse direction are out of phase. Therefore the forward waves add together, (constructive interference) enhancing the power in that direction, while the backward waves partially cancel each other (destructive interference) reducing the power emitted in that direction. At other angles the power emitted is intermediate between the two extremes.

Reason

Effectively illustrates a complex apparatus and makes it intuitively understandable.

Articles in which this image appears

Yagi–Uda_antenna

FP category for this image

Wikipedia:Featured pictures/Engineering and technology/Electronics

Creator

Chetvorno

• Support as nominator – Foobaz·o< 06:21, 16 January 2017 (UTC)
• Comment I think it moves slightly too fast. It's not really clear that the green line is the only driven element - it just looks like all of them pulse. A slightly slower animation focused on the Yagi a bit more would be good. Perhaps for clarity, the elements should flash or otherwise change when they absorb/re-raditiate power. If I didn't already know how this antenna worked, I don't think this diagram would help much. Smurrayinchester 16:05, 16 January 2017 (UTC)
• I agree with above comment. Bammesk (talk) 03:35, 17 January 2017 (UTC)
• Support – Jobas (talk) 11:37, 18 January 2017 (UTC)
• Support lNeverCry 08:02, 20 January 2017 (UTC)
• Oppose I think it moves too quickly to really understand how this works. Also, I remain confused as to what it's showing, so I don't think it serves it's encyclopedic purpose. Mattximus (talk) 16:43, 22 January 2017 (UTC)

Not Promoted --Armbrust ^{The Homunculus} 10:26, 26 January 2017 (UTC)