Recursos ondas electromagnéticas
Está asociado a campo magnético y a movimiento ondulatorio
Un tema separado es el tema de las antenas, que se citaba indirectamente en currículo LOMLOE
- Electromagnetic Waves - ophysics
- Propagación de las ondas electromagnéticas - java applet
Fu-Kwun Hwang, Dept. of physics, National Taiwan Normal University
Antenas
Antenna on the Cheap (er, Chip) 2001 - oreillynet - archive
Cómo hacer antena casera con bote de Pringles 2005
Antenas Wi-Fi. Lo que hay que saber - carballar
Wi-Fi. Mejorar la cobertura con una antena casera - carballar
How to Make a Wi-Fi Antenna Out of a Pringles Can - makeuseof
Building the Cylinder (Can) Waveguide - wikirakare
Wi-Fi/3G/4G Disk-Yagi antenna, analysis and calculation
It should be especially noted that this class of antennas should be rated a very unsuccessful variant for hand-maker who do not have a vector analyzer in terms of design repeatability. On our website you can find much more effective antennas for DIYers, for example for 4G, or for Wi-Fi.
DIY long range wifi antenna “Patch array 2×3”
One such antenna is Yagi-Uda. However, this antenna requires careful tuning by using the vector analyzer and has a complex matching unit at the feedpoint. This antenna may not work properly on the Wi-Fi range, even if you do everything exactly according to the drawings. Let’s call this property the “repeatability” of the antenna. In other words, the lower the probability of a negative result when making a DIY antenna, the higher the repeatability. This is an important criterion for selecting the design of a homemade microwave antenna. Cantenna or BiQuad have good repeatability. Yagi has low repeatability. So, we need a high gain Wi-Fi antenna with high repeatability.
Therefore, the repeatability of “Patch array 2×3” is quite high, and this antenna can be safely recommended for DIY-ers who do not have a microwave impedance meter at hand.