Timeline for Loop Antenna Construction
Current License: CC BY-SA 4.0
16 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 23, 2020 at 21:42 | vote | accept | Ramanda Nvl | ||
| Dec 21, 2020 at 13:48 | answer | added | Phil Frost - W8II | timeline score: 3 | |
| Dec 21, 2020 at 0:50 | comment | added | Mike Waters | Round or square doesn't matter a lot. They need to be in line, not perpendicular; but you can try it both ways. See my comment on the answer below. | |
| Dec 21, 2020 at 0:32 | comment | added | Ramanda Nvl | Alright. So I will do it like this. I make a square loop antenna. Test it with the vertical spark. And probe it to oscilloscope. And see the difference angle influence. I hope I get it right with the theory where the maximum output should be on perpendicular from the plane. And then I will post it as a new question. Thanks sir! | |
| Dec 20, 2020 at 23:57 | comment | added | Mike Waters | I would turn it 90°, yes. However, I still have some concerns about it which I can't seem to find the right words to explain right now. When I do, I'll post it in an answer. | |
| Dec 20, 2020 at 20:33 | comment | added | Ramanda Nvl | @MikeWaters 1. Sorry, thats the best angle after i checked my gallery, sir. i just recall something. because the spark chanel is horizontal, i need to turned it, right? so the spark chanel will be vertical, and the magnetic field will radiate horizontal? is that so, sir? 2. Becuase the goal of my antenna is respond to magnetic field (?) not the electrical field 4. Yes, its a multistage high voltage generator that contain a transformer. | |
| Dec 20, 2020 at 20:01 | comment | added | Mike Waters | 4. Is the black vertical cylinder to the left your impulse generator/power supply? It may contain a transformer that is coupling to your loop more than the spark gap is. If so, it may need to be shielded by covering it with metal foil. | |
| Dec 20, 2020 at 19:51 | comment | added | Mike Waters | I like this photo! 1. Can we see a close-up of the spark gap assembly on the left? I am wondering if the either the spark gap or the loop needs to be turned 90° and/or moved a little further away (thoughts, anyone?). 2. Why do you think it needs to be shielded? I don't believe that it does. 3. You can cover your antenna with plastic tape, but it will not provide any shielding effect whatsoever. | |
| Dec 20, 2020 at 19:27 | answer | added | hotpaw2 | timeline score: 2 | |
| Dec 20, 2020 at 18:55 | history | edited | Kevin Reid AG6YO♦ | CC BY-SA 4.0 | crop image; simple copyedit |
| Dec 20, 2020 at 18:06 | comment | added | Ramanda Nvl | @PhilFrost-W8II is it critical for any antenna? would you kindly check my edit, sir? | |
| Dec 20, 2020 at 18:06 | comment | added | Ramanda Nvl | @tomnexus yes, i will only use oscilloscope. no amplifier. and maybe spectrum analyzer in the future. would you kindly check my edit, sir? | |
| Dec 20, 2020 at 18:05 | history | edited | Ramanda Nvl | CC BY-SA 4.0 | added 1554 characters in body |
| Dec 20, 2020 at 16:58 | comment | added | Phil Frost - W8II | What have you already read about feeding technique and what don't you understand? | |
| Dec 20, 2020 at 16:32 | comment | added | tomnexus | Hi, can you tell us: What is the antenna for? What frequency and application? How many turns? Will it stay connected to the scope, or be connected to something else? | |
| Dec 20, 2020 at 8:26 | history | asked | Ramanda Nvl | CC BY-SA 4.0 |