Antennas
Home-built antennas with every dimension taken from the wavelength, the most gain each design can give, and India's EIRP limit for 2.4 GHz.
Pages in this section
Lessons behind these pages
- Frequency and periodFrom 2442 MHz to a 122.8 mm wavelength.
- Impedance matchingWhy the feed has to look like 50 Ω.
- The decibelAdding antenna gain and cable loss in a link budget.
- ResonanceWhy an element cut to the wrong length stops working.
- Skin effectWhy only the surface of the wire carries RF current.
- Spectrum analyserHow you would measure what the antenna radiates.