Spiral Antennas

Archimedean, rectangular, and equiangular spiral

Spiral Antenna Catalog


`spiralArchimedean`	`spiralEquiangular`	`spiralRectangular`		Antenna Element Catalog

Spiral antennas are frequency-independent antennas. These antennas are used in wireless communications and applications that requires larger bandwidth of operation.

Apps

Antenna Designer

Design, visualize, and analyze antennas

Objects

`spiralArchimedean`	Create Archimedean spiral antenna
`spiralEquiangular`	Create equiangular spiral antenna
`spiralRectangular`	Create rectangular spiral antenna on X-Y plane

Functions

`show`	Display antenna or array structure; display shape as filled patch
`info`	Display information about antenna or array
`rectspirallength2turns`	Calculate number of turns for specified arm length in rectangular spiral antenna

Featured Examples

Archimedean Spiral Design Investigation

Compares the results published in [1] for an Archimedean spiral antenna with those obtained using the toolbox model of the spiral antenna. The two-arm Archimedean spiral antenna( r = R ϕ ) can be regarded as a dipole, the arms of which have been wrapped into the shape of an Archimedean spiral. This idea came from Edwin Turner around 1954.

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Modeling Resonant Coupled Wireless Power Transfer System

Create and analyze a resonant coupling type wireless power transfer (WPT) system with an emphasis on concepts such as resonant mode, coupling effect, and magnetic field pattern. The analysis is based on a two-element system of spiral resonators.

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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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