Title :
Broadband miniaturized butler matrix utilizing left-handed transmission lines
Author :
Staszek, Kamil ; Kaminski, Piotr ; Rydosz, Artur ; Wincza, Krzysztof ; Gruszczynski, Slawomir
Author_Institution :
AGH Univ. of Sci. & Technol., Cracow, Poland
Abstract :
A novel concept of 4 × 4 Butler matrix realization has been proposed. The proposed Butler matrix is composed of four miniaturized coupled-line 3-dB/90° directional couplers. A broadband phase response has been ensured by the application of two left-handed transmission-line sections. The proposed concept has been experimentally verified by the design and measurements of a 4 × 4 Butler matrix, having center frequency equal to 1 GHz.
Keywords :
directional couplers; transmission lines; broadband miniaturized Butler matrix; directional couplers; frequency 1 GHz; left-handed transmission lines; Linear matrix inequalities; Butler matrix; coupled-line directional coupler; left-handed transmission line; phase shifter;
Conference_Titel :
Microwaves, Radar, and Wireless Communication (MIKON), 2014 20th International Conference on
Conference_Location :
Gdansk
Print_ISBN :
978-617-607-553-0
DOI :
10.1109/MIKON.2014.6899951
