Broadband 4 × 4 Butler matrices utilizing tapered-coupled-line directional couplers
作者： Slawomir Gruszczynski , Krzysztof Wincza , Krzysztof Sachse
DOI: 10.1109/MRRS.2011.6053605
关键词: Broadband 、 Optics 、 Matrix (mathematics) 、 Phase shift module 、 Coupling 、 Amplitude 、 Hybrid coupler 、 Engineering 、 Power dividers and directional couplers 、 Bandwidth (signal processing)
摘要: The analysis and design of a 4 × Butler matrix that utilizes tapered-coupled-line directional couplers is presented. As basic element the matrix, previously designed measured 3.3-dB coupler has been used. Two different realizations are considered, i.e. network consisting tapered-line Schiffman phase shifter, in which appropriate characteristics have ensured by substituting one 0/180° 3-dB/90° coupler. In this solution, needed as 5-section symmetrical coupled-line tightly coupled section with use tapered-coupled-lines. proposed technique allowed for achieving very good amplitude due to fact large discontinuity between coupled-lines having coupling coefficients avoided. operational bandwidth presented matrices exceeds two frequency octaves.
sci-hub.se 参考文章(12)
S. Yamamoto, T. Azakami, K. ltakura, Coupled Nonuniform Transmission Line and Its Applications IEEE Transactions on Microwave Theory and Techniques. ,vol. 15, pp. 220- 231 ,(1967) , 10.1109/TMTT.1967.1126432
Slawomir Gruszczynski, Krzysztof Wincza, Design of high‐performance broadband multisection symmetrical 3‐DB directional couplers Microwave and Optical Technology Letters. ,vol. 50, pp. 636- 638 ,(2008) , 10.1002/MOP.23169
M.J. Withers, Frequency-insensitive phase-shift networks and their use in a wide-bandwidth Butler matrix Electronics Letters. ,vol. 5, pp. 496- 498 ,(1969) , 10.1049/EL:19690376
P.E.K. Chow, D.E.N. Davies, Wide bandwidth Butler matrix network Electronics Letters. ,vol. 3, pp. 252- 253 ,(1967) , 10.1049/EL:19670195
S.J. Foti, T. Macnamara, Design of wideband Butler matrices using Schiffman lines Multiple Beam Antennas and Beamformers, IEE Colloquium on. ,(1989)
S. Gruszczynski, K. Wincza, K. Sachse, Design of Compensated Coupled-Stripline 3-dB Directional Couplers, Phase Shifters, and Magic-T's—Part II: Broadband Coupled-Line Circuits IEEE Transactions on Microwave Theory and Techniques. ,vol. 54, pp. 3501- 3507 ,(2006) , 10.1109/TMTT.2006.880649
C. Dall'Omo, T. Monediere, B. Jecko, F. Lamour, I. Wolk, M. Elkael, Design and realization of a 4 × 4 microstrip butler matrix without any crossing in millimeter waves Microwave and Optical Technology Letters. ,vol. 38, pp. 462- 465 ,(2003) , 10.1002/MOP.11090
B.M. Schiffman, A New Class of Broad-Band Microwave 90-Degree Phase Shifters IEEE Transactions on Microwave Theory and Techniques. ,vol. 6, pp. 232- 237 ,(1958) , 10.1109/TMTT.1958.1124543
J. Allen, A theoretical limitation on the formation of lossless multiple beams in linear arrays IRE Transactions on Antennas and Propagation. ,vol. 9, pp. 350- 352 ,(1961) , 10.1109/TAP.1961.1145014
Slawomir Gruszczynski, Krzysztof Wincza, Design of Broadband Asymmetric Tapered-Line 3-dB Directional Couplers european microwave conference. pp. 1127- 1130 ,(2006) , 10.1109/EUMC.2006.281155