CST – Computer Simulation Technology

Cavity-Backed Slot Array

Image of the cavity-backed slot array. Image of the cavity-backed slot array.

Cavity-backed slots allow for very efficient low-loss structures at high frequencies, but often require complex feed structures. By using a single cavity backing for a number of slots and leveraging the modal distribution in the cavity to realize the excitation distribution of the slot array the complexities of the feed structure can be greatly reduced. This approach is used in a number of slot array structures, like the radial line slot array to simplify construction of larger arrays.

The specific antenna implemented in Antenna Magus is based on a structure developed for satellite digital multimedia broadcasting (DMB) where high-gain as well as high isolation between closely located antennas was required. The 2x4 rectangular slot array provides linearly polarization with 17 dBi gain over a 10% bandwidth. This is an ideal simple-to-construct efficient array and can be used as a building block for larger arrays with minimal inter-element interaction....

A 2x4 rectangular slot array with linearly polarization, 17 dBi gain over a 10% bandwidth. A 2x4 rectangular slot array with linearly polarization, 17 dBi gain over a 10% bandwidth.

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.