CST – Computer Simulation Technology

Minimum Loss, Compact, Fabrication Oriented Design Of 8 Inputs By 8 Outputs Wave Guide Butler Matrix
Jacob Remez, Roi Carmon
Technion, Institute of Technology, Electrical Engineering, Communication Laboratory, Haifa, Israel
1st January 0001
Butler matrix, multibeam antenna, waveguide network, high power microwave, top wall hybrid, side wall hybrid, differential phase shifter, waveguide components
The Butler matrix is a beam forming matrix that is useful for multibeam array antennas. This matrix has the advantage that theoretically all the input power arrives to the radiating array. If it is built in waveguide technology the network is almost lossless, but a small loss still remain due to the finite conductivity of the metal. Special structure architecture can reduce matrix dimension and loss by shortening the signal path and avoiding unnecessary connecting waveguide sections or crossing components. In this paper we report a structure that uses known waveguide components such as the short slot and top wall hybrids, and stub loaded differential phase shifters, to form a Butler matrix with compact dimensions and minimum loss. The network shape yields the shortest path length from the inputs to the outputs, thus minimizing the loss. The idea is more beneficial for larger matrices like 16 by 16. Realization and assembly considerations for the matrix are also being discussed.

Back to References

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.