Timeline for How to increase the angle of light (without going from a higher to lower index of refraction)?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 15, 2023 at 11:44 | comment | added | José Andrade | I must say that the wavelength of 2.4GHz is about 12cm. So you need to look into waveguide/ meta material theories, and those are not easy. The more I think about it, for such a small structure compared to the 12cm, you cannot talk about "bounce 3 times" but instead you need to look at the excited modes of your antenna (which an aperture of 5x5cm would be) and how these get propagated through. For a proper modelling you would need the full (complex) description of the materials electromagnetic properties. | |
| Sep 14, 2023 at 14:48 | comment | added | Tom | Yes, filtering out rays beyond 1 degree is my final goal. The reason I'm pessimistic on an aperture is because I want my device to be no more than 40cm long. In order to achieve 1 degree I would need an aperture size of 0.7cm. While I could possibly compromise on such a small aperture, my biggest concern is that it wouldn't be ideal. For example, the rays at 5 degrees would bounce three times and be attenuated only 50% for a wall with an index of refraction of 2. I'm going to look more into metamaterials to see if that can solve it. | |
| Sep 14, 2023 at 14:12 | comment | added | Tom | By on-axis rays, I mean those which are at 0 degrees in my diagram, anywhere along the surface of the device. A diverging lens bends those rays unless they are in the very center of the lens. | |
| Sep 14, 2023 at 9:46 | history | answered | José Andrade | CC BY-SA 4.0 |