CST – Computer Simulation Technology

Beamforming Patch Array Antenna and Butler Matrix Simulation

The design of a Switched Beam Smart Antenna Array, capable of pointing at targets in real time, is demonstrated in this article and is based on a microstrip patch array with Butler Matrix feed. The various design stages are performed using a combination of CST MICROWAVE STUDIO® (CST MWS) and CST DESIGN STUDIO® (CST DS). The array is designed to operate at 5.25 GHz and consists of 4 microstrip patches. A single patch, which exhibits an omnidirectional radiation pattern, is optimized using the integrated CST MWS Optimizer. Two approaches are shown for the calculation of the array performance of a single patch and the 4-patch system. Once the optimal patch parameters have been ascertained, the focus shifts to the feed network design. CST DS can be used for the feed design in two ways: to perform a co-simulation between CST MWS and DS; or to create a layout in CST DS of a microstrip Butler matrix which can be exported to CST MWS and simulated directly as a patch array....



Figure 1: Patch geometry and optimised farfield


Figure 2: Two methods for the antenna array farfield calculation




Figure 4: CST DS Butler Network Array

Rate this Article

0 of 5 Stars
5 Stars
0%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%
contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy


Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:


Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.


Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.