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Monopole Antennas

Monopole and op-hat monopole, inverted and coplanar inverted antennas

A monopole antenna is half of a dipole antenna on top of a conducting ground plane. The most common type is a quarter-wave monopole where the antenna is approximately 1/4 of wavelength of radio waves. The radiation pattern is limited to above the ground plane of the antenna. These antennas find uses in mobile communications and internet networks.

Inverted antennas are developed from monopole antennas. In Inverted F and Inverted L antennas the top section is folded to be parallel to the ground plane. This geometry reduces the height of the antenna while maintaining a resonant trace length.

Apps

Antenna DesignerDesign, visualize, and analyze antennas

Using Objects

invertedFCreate inverted-F antenna over rectangular ground plane
invertedLCreate inverted-L antenna over rectangular ground plane
invertedFcoplanarCreate inverted-F antenna in same plane as rectangular ground plane
invertedLcoplanarCreate inverted-L antenna in same plane as rectangular ground plane
monopoleCreate monopole antenna over rectangular ground plane
monopoleTopHatCreate capacitively loaded monopole antenna over rectangular ground plane

Functions

showDisplay antenna or array structure; Display shape as filled patch
infoDisplay information about antenna or array
cylinder2stripCylinder equivalent width approximation

Featured Examples

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