Reflector Antennas

Rectangular, circular, grid, cylindrical, parabolic, corner, and dual reflectors

Reflector Antenna Catalog


`cassegrain`	`cassegrainOffset`	`customDualReflectors`	`gregorian`	`gregorianOffset`	`reflector`	`reflectorCircular`

`reflectorCorner`	`reflectorCylindrical`	`reflectorGrid`	`reflectorParabolic`	`reflectorSpherical`	Antenna Element Catalog

Antennas performance can be improved using reflectors. Reflector antennas are used to increase directivity. These antennas are used in space craft applications.

Apps

Antenna Designer

Design, visualize, and analyze antennas

Objects

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Curved Reflectors

`cassegrain`	Create Cassegrain antenna
`cassegrainOffset`	Create offset Cassegrain antenna
`customDualReflectors`	Create custom dual-reflector antenna
`gregorian`	Create Gregorian antenna
`gregorianOffset`	Create offset Gregorian antenna
`reflectorParabolic`	Create parabolic reflector antenna
`reflectorCylindrical`	Create cylindrical reflector-backed antenna
`reflectorSpherical`	Create spherical reflector-backed antenna

Planar Reflectors

`reflector`	Create reflector-backed antenna
`reflectorCircular`	Create circular reflector-backed antenna
`reflectorCorner`	Create corner reflector-backed antenna
`reflectorGrid`	Create grid reflector-backed antenna

Functions

`show`	Display antenna, array structures or shapes
`info`	Display information about antenna or array
`numGridsToSpacing`	Calculate grid spacing in grid for `reflectorGrid` object
`convergence`	Calculate and plot convergence of FMM solver

Featured Examples

Design and Analyze Parabolic-Reflector-Backed Wideband Eggcrate Array

Create an eggcrate array of vivaldiOffsetCavity antenna elements backed by a parabolic reflector. The Vivaldi antenna is widely used in radar and electronic countermeasures because of its simple structure and wide operating bandwidth. The eggcrate array consists of Vivaldi antenna elements oriented in a grid. The eggcrate array in Antenna Toolbox™ is a fully metallic array, which is capable of handling a high average power. Vivaldi phased arrays are used for a wide range of applications at various frequencies and bandwidths. The eggcrate array of vivaldi antenna elements provides a wide bandwidth. You can back the array with any Antenna Toolbox backing structure. In this example, you analyze the Vivaldi element, eggcrate array, and eggcrate array backed with a parabolic reflector over 5G frequency bands.

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Design and Analyze Curved Reflectors

Design and analyze the curved reflectors. Curved reflectors are an upgraded version of rectangular reflectors. The curved surface on these reflectors reflects and focuses waves, which provides a stronger signal. Some of the notable characteristics of the curved reflectors are high gain, low cross-polarization, and reasonable bandwidth.

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Design and Analyze Cassegrain Antenna

Design and analyze a cassegrain antenna.

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Reflector Backed Equiangular Spiral

The spiral antenna is an inherently broadband, and bidirectional radiator. This example will analyze the behavior of an equiangular spiral antenna backed by a reflector [1]. The spiral and the reflector are Perfect Electric Conductors (PEC).

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