Patch Antennas

Rectangular, elliptical, triangular, and circular probe-fed patch, inset-fed rectangular patch, e-notch and h-notch patch

Patch Antenna Catalog


`patchMicrostrip`	`patchMicrostripCircular`	`patchMicrostripElliptical`	`patchMicrostripInsetfed`

`patchMicrostripEnotch`	`patchMicrostripHnotch`	`patchMicrostripTriangular`	`pifa`	Antenna Element Catalog

Microstrip or patch antennas find uses in applications that require low profile antennas without compromising performance. Mostly patch antennas are directly designed in printed circuit boards (PCB). The structure consists of a conducting patch and a ground plane between which is a substrate that can either be air or a dielectric such as Teflon.

Apps

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

Objects

`patchMicrostrip`	Create microstrip patch antenna
`patchMicrostripCircular`	Create probe-fed circular microstrip patch antenna
`patchMicrostripInsetfed`	Create inset-fed microstrip patch antenna
`pifa`	Create planar inverted-F antenna
`patchMicrostripEnotch`	Create probe-fed E-shaped microstrip patch antenna
`patchMicrostripHnotch`	H-shaped microstrip patch antenna
`patchMicrostripTriangular`	Create triangular microstrip patch antenna
`patchMicrostripElliptical`	Create elliptical microstrip patch antenna

Functions

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

Featured Examples

Design S-Band Monopulse Tracking RADAR Antenna

The integration of a 2-by-4 Microstrip patch array and a Rat-race coupler to implement a monopulse operation.

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ISM Band Patch Microstrip Antennas and Mutually Coupled Patches

Design and implement a rectangular, circular, triangular and elliptical patch microstrip antennas complying with the ISM (Industrial Scientific and Medical) band.

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Patch Antenna on Dielectric Substrate

Calculates the performance of two linearly polarized patch antennas.

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Design PIFA for WLAN Wi-Fi™ Applications

This example designs a PIFA for wireless applications.

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Polarization Analysis for X-band Microstrip Patch Antenna

In most basic form, a microstrip patch antenna consists of a radiating patch on one side of a dielectric substrate and a ground plane on the other side. Microstrip patch antennas radiate primarily as wide open-open half-wave microstrip resonators. The length L of the rectangular patch for the fundamental excitation mode is slightly less than λ/2. For a good antenna performance, a thick dielectric substrate having a low dielectric constant is usually desired since it provides a larger bandwidth and a well-defined beam. A rectangular microstrip patch antenna normally radiates a linearly polarized wave with about 6-7 dBi gain at broadside. Higher gains (up to 10 dBi) can be achieved by using different means including large patch heights and parasitic patches.

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Analysis of Inset-Feed Patch Antenna on Dielectric Substrate

Showcases the analysis of an inset-feed patch antenna on a low-epsilon, low-loss, thin dielectric substrate. The results are compared with the reflection coefficient and surface currents around the 2.4 GHz, Wi-Fi band for a reference design [1]. The Antenna Toolbox™ library of antenna elements includes a patch antenna model that is driven with a coaxial probe. Another way to excite the patch is by using an inset-feed. The inset-feed is a simple way to excite the patch and allows for planar feeding techniques such as a microstrip line.

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Design, Analyze, and Prototype 2x2 Patch Array Antenna

Create a 2x2 patch array on FR4 substrate, analyze the antenna, and generate Gerber files of the PCB for prototyping. The design operates at around 2.4 GHz.

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