Reflector Antennas

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

Reflector Antenna Catalog

Cassegrain antenna

cassegrain

Offset Cassegrain antenna

cassegrainOffset

Custom Dual Reflector

customDualReflectors

Gregorian antenna

gregorian

Offset Gregorian antenna

Reflector

Circular reflector

Corner reflector

Cylindrical Reflector

reflectorCylindrical

Grid Reflector

reflectorGrid

Parabolic Reflector

reflectorParabolic

Spherical Reflector

reflectorSpherical

List of all antennas

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 (Since R2021a)
`customDualReflectors`	Create custom dual-reflector antenna (Since R2022a)
`gregorian`	Create Gregorian antenna
`gregorianOffset`	Create offset Gregorian antenna (Since R2021a)
`reflectorParabolic`	Create parabolic reflector antenna
`reflectorCylindrical`	Create cylindrical reflector-backed antenna (Since R2020b)
`reflectorSpherical`	Create spherical reflector-backed antenna (Since R2020b)

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 (Since R2020b)

Functions

`show`	Display antenna, array structures, shapes, or platform
`info`	Display information about antenna, array, or platform
`numGridsToSpacing`	Calculate grid spacing in for `reflectorGrid` object (Since R2020b)
`convergence`	Calculate and plot convergence of FMM solver (Since R2021b)
`design`	Design prototype antenna or arrays for resonance around specified frequency or create AI-based antenna from antenna catalog objects

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 Reflector Antennas

Design and analyze the curved reflector antennas. Curved reflector antennas are an upgraded version of rectangular reflector antennas. The curved reflector surface of these antennas reflects and focuses the signal, thereby increasing the signal strength. 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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