منابع مشابه
Microstrip Butler matrix design and realization for 7 T MRI.
This article presents the design and realization of 8 × 8 and 16 × 16 Butler matrices for 7 T MRI systems. With the focus on low insertion loss and high amplitude/phase accuracy, the microstrip line integration technology (microwave-integrated circuit) was chosen for the realization. Laminate material of high permittivity (ε(r) = 11) and large thickness (h = 3.2 mm) is shown to allow the best t...
متن کاملA Design of Compact Ultra Wideband Coupler for Butler Matrix
A design of 3 dB compact ultra wideband (UWB) coupler for a 4 × 4 Butler Matrix, which is operating between 3 and 11 GHz frequency range, is presented in this paper. The proposed design uses multilayer technology that allows having a compact and broad bandwidth coupler. The design uses elliptically shaped broadside coupled strips and a slot created in a common ground plane of two dielectric sub...
متن کاملDesign and Implementation of a Planar 4 × 4 Butler Matrix in Siw Technology for Wide Band High Power Applications
This paper introduces a novel design of Butler matrix in substrate integrated waveguide (SIW) technology with wide frequency band characteristics. Butler matrices are particularly useful in advanced antenna design and characteristics such as wideband operation, power handling, manufacturing, integration, cost, etc. are typical issues to be addressed in many applications. The proposed planar 4 ×...
متن کاملOptimum Design of a 4x4 Planar Butler Matrix Array for WLAN Application
In recent years, high-speed wireless communication is in vogue. In wireless communication systems, multipath fading, delay and interferenc occurres by reflection or diffraction. In a high-speed wireless communication, it becomes a necessary to separate desired signal from delay or interference signal. Thus to overcome these problems Smart antenna systems have been developed. Basically there are...
متن کاملDesign and Implementation of a 4x4 Butler-Matrix Switched-Beam Antenna Array at the Microwave Communications and Electromagnetic Applications Lab of the Technological Educational Institute of Crete
A switched-beam array system, capable to produce four orthogonal uniform beams and some low sidelobe beams, is presented in this work. The system is consisted of a four-element linear phased array and a 4x4 Butler-matrix beamforming network. System’s design and optimization was based on experimental results and computer simulations. New, small and easy to fabricate microstrip layout topologies ...
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ژورنال
عنوان ژورنال: The Journal of Korea Information and Communications Society
سال: 2014
ISSN: 1226-4717
DOI: 10.7840/kics.2014.39a.9.563