BUTLER MATRIX IN MICROSTRIP-SLOT TECHNOLOGY
DOI:
https://doi.org/10.29121/granthaalayah.v5.i4.2017.1820Keywords:
Butler Matrix, UWB, Microstrip-Slot Coupler, Multilayer TechnologyAbstract [English]
The design of a 4 x 4 Butler Matrix for use in a multi-beam antenna array operating over wide frequency band is presented. In order to achieve wideband characteristics, the matrix uses microstrip-slot technology that employs two microstrip dielectric layers with a common ground plane and a coupling slot. The designed Butler matrix is compact in size and does not use crossovers. Its prototype is manufactured. The performance of the designed device is assessed via full-wave electromagnetic simulations and measurements.
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