Monopole Antennas

Monopole and top-hat monopole, inverted and coplanar inverted antennas, custom monopole, cylindrical monopole

Monopole Antenna Catalog


`invertedF`	`invertedL`	`invertedFcoplanar`	`invertedLcoplanar`	`monopole`

`monopoleCustom`	`monopoleCylindrical`	`monopoleTopHat`	`monopoleRadial`	Antenna Element Catalog

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 Designer	Design, visualize, and analyze antennas
Antenna Array Designer	Design, visualize, and analyze arrays

Objects

`invertedF`	Create inverted-F antenna over rectangular ground plane
`invertedL`	Create inverted-L antenna over rectangular ground plane
`invertedFcoplanar`	Create inverted-F antenna in same plane as rectangular ground plane
`invertedLcoplanar`	Create inverted-L antenna in same plane as rectangular ground plane
`monopole`	Create monopole antenna over rectangular ground plane
`monopoleCustom`	Create customized monopole antenna
`monopoleCylindrical`	Create cylindrical monopole antenna over rectangular ground plane
`monopoleRadial`	Create monopole antenna mounted on radial ground plane
`monopoleTopHat`	Create capacitively loaded monopole antenna over rectangular ground plane

Functions

`show`	Display antenna, array structures or shapes
`info`	Display information about antenna or array
`cylinder2strip`	Cylinder equivalent width approximation

Featured Examples

Ultra-Wideband (UWB) Planar Monopole Antennas

Design UWB planar monopole antennas. Planar monopole antennas are simple in geometry and provide an ultrawideband (UWB) operating bandwidth. To create a planar monopole, replace a conventional wire monopole with planar elements in a variety of shapes to increase the surface area of the monopole. To design a planar monopole antenna, mount a planar metal plate on the ground plane. The ground plane can also have various shapes.

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Impedance Matching of Non-resonant (Small) Monopole

Design a double tuning L-section matching network between a resistive source and capacitive load in the form of a small monopole. The L-section consists of two inductors. The network achieves conjugate match and guarantees maximum power transfer at a single frequency. This example requires the following product:

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