Analysis and Design of Different Methods to Reach Optimum Power in Butler Matrix

Authors: Shahideh Kiehbadroudinezhad, Jean-François Bousquet, Michael Cada,
Adib Shahabi, Mohammad Ali Kiehbadroudinezhad

ABSTRACT
With the increasing demand for high speed reliable communications, smart antennas, such as the Butler Matrix array, can be used to develop a system that increases the performance of a wireless system. The Butler matrix is a switched beam array system which can produce orthogonal uniform beams. The main objective is to improve the efficiency of the power in a 90-degree bend. Also, the double-mitered bend is particularly interesting since it provides a substantially lower reflection coefficient and a lower value of S12 at a frequency of 2.4 GHz compared to an unmitered one. Therefore, this paper describes an optimum design using a double-mitered method with a 2 × 2 and a 4 × 4 Butler Matrix array, operating at 2.4 GHz which is used in wireless systems with an FR4 substrate.

Source:

Journal: International Journal of Communications, Network and System Sciences
DOI: 10.4236/ijcns.2019.122003(PDF)
Paper Id: 90867 (metadata)

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