Monopole Antennas
Monopole Antenna 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 (Since R2020b) |
monopoleCylindrical | Create cylindrical monopole antenna over rectangular ground plane (Since R2021a) |
monopoleRadial | Create monopole antenna mounted on radial ground plane (Since R2020b) |
monopoleTopHat | Create capacitively loaded monopole antenna over rectangular ground plane |
Functions
show | Display antenna, array structures, shapes, or platform |
info | Display information about antenna, array, or platform |
cylinder2strip | Cylinder equivalent width approximation |
design | Design prototype antenna or arrays for resonance around specified frequency or create AI-based antenna from antenna catalog objects |
Featured Examples
Analysis of Ultrawideband Trident Inset-Fed Monopole Antenna with Conical Ground
Analyze the performance of a U-shaped monopole antenna designed on a PCB and mounted on a conical ground. You achieve low-frequency matching by inserting a trident inset feed. The conical ground with an elliptical shape at the base of the radiator outperforms traditional UWB monopole designs in impedance-matching bandwidth and radiation pattern omnidirectivity [1].
Ultra-Wideband (UWB) Planar Monopole Antennas
Design UWB planar monopole antennas. Planar monopole antennas are simple in geometry and provide an ultra-wideband (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.
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.
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