Thin Element Antennas
In the case of thin element antennas such as monopoles and dipoles, there is no simple relationship between physical area and effective area. However, the effective areas can be calculated from their power gain figures:
Wire antenna | Power gain | Effective area |
---|---|---|
Short dipole (Hertzian dipole) | 1.5 | 0.1194 2 |
Half-wave dipole | 1.64 | 0.1305 2 |
Quarter-wave monopole | 3.28 | 0.2610 2 |
This assumes that the monopole antenna is mounted above an infinite ground plane.
Read more about this topic: Antenna Aperture
Famous quotes containing the words thin and/or element:
“a voice still so hollow
That it seems to call out to me from forty years ago,
When you were all aglow,
And not the thin ghost that I now frailly follow!”
—Thomas Hardy (18401928)
“Out of the element of participation follows the certainty of faith; out of the element of separation follows the doubt in faith. And each is essential for the nature of faith. Sometimes certainty conquers doubt, but it cannot eliminate doubt. The conquered of today may become the conqueror of tomorrow. Sometimes doubt conquers faith, but it still contains faith. Otherwise it would be indifference.”
—Paul Tillich (18861965)