Realization of Multi-Band 3-dB Branch-Line Couplers Using Fourier-Based Transmission Line Profiles

References

• Ansys, Inc . 2011 . ANSYS high frequency structure simulator (HFSS). Canonsburg , PA
   Google Scholar
• Cheng , K.-K. and Wong , F.-L. 2004 . A novel approach to the design and implementation of dual-band compact planar 90° branch-line coupler. . IEEE Trans. Microw. Theory Tech. , 52 : 2458 – 2463 .
   Web of Science ®Google Scholar
• Cheng , K.-K. and Yeung , S. 2012 . A novel dual-band 3-dB branch-line coupler design with controllable bandwidths. . Trans. Microw. Theory Tech. , 60 : 3055 – 3061 .
   Web of Science ®Google Scholar
• Chin , K.-S. , Lin , K.-M. , Wei , Y.-H. , Tseng , T.-H. and Yang , Y.-J. 2010 . Dual-band branch-line and rat-race couplers with stepped-impedance-stub lines. . IEEE Trans. Microw. Theory Tech. , 58 : 1213 – 1221 .
   Web of Science ®Google Scholar
• Jung , S.-C. , Negra , R. and Ghannouchi , F. A miniaturized double-stage 3dB broadband branch-line hybrid coupler using distributed capacitors. Proceedings of Asia Pacific Microwave Conference (APMC) . December 7–10 , Singapore. pp. 1323 – 1326 .
   Google Scholar
• Khalaj-Amirhosseini , M. 2006 . Wideband or multiband impedance matching using microstrip non-uniform transmission lines. . Prog. Electromagn. Res. , 66 : 15 – 25 .
   Web of Science ®Google Scholar
• Khalaj-Amirhosseini , M. 2008 . Non-uniform transmission lines as compact uniform transmission lines. . Prog. Electromagn. Res. C , 4 : 205 – 211 .
   Google Scholar
• Lee , H. and Nam , S. 2007 . Triband branch line coupler using double-Lorentz transmission lines. . Microw. Opt. Technol. Lett. , 50 : 1174 – 1177 .
   Web of Science ®Google Scholar
• Li , Y. 1993 . Centering, trust region, reflective techniques for nonlinear minimization subject to bounds. , Technical Report 93–1385 NY : Cornell University .
   Google Scholar
• Lin , F. , Q.-Chu , X. and Lin , Z. 2010 . A novel tri-band branch-line coupler with three controllable operating frequencies. . IEEE Microw. Wirel. Compon. Lett. , 20 : 666 – 668 .
   Web of Science ®Google Scholar
• Liou , C.-Y. , Wu , M.-S. , Yeh , J.-C. , Chueh , Y.-Z. and Mao , S.-G. 2009 . A novel triple-band microstrip branch-line coupler with arbitrary operating frequencies. . IEEE Microw. Wirel. Compon. Lett. , 19 : 683 – 685 .
   Web of Science ®Google Scholar
• Mentor Graphics PCB Design Software . IE3D: Method of moment (MoM) based full-wave electromagnetics simulator, v. 14.2. Wilsonville , OR .
   Google Scholar
• Park , M.-J . 2009 . Dual-band, unequal length branch-line coupler with center-tapped stubs. . IEEE Microw. Wireless Compon. Lett. , 19 : 617 – 619 .
   Web of Science ®Google Scholar
• Piazzon , L. , Saad , P. , Colantonio , P. , Giannini , F. , Andersson , K. and Fager , C. 2012 . Branch-line coupler design operating in four arbitrary frequencies. . IEEE Microw. Wirel. Compon. Lett. , 22 : 67 – 69 .
   Web of Science ®Google Scholar
• Pozar , D. 2005 . Microwave engineering, , 3rd ed. , New York : Wiley . chaps. 4 & 7
   Google Scholar
• Rawat , K. , Rawat , M. , Hashmi , M.-S. and Ghannouchi , F.-M. 2013 . Dual-band branch-line hybrid with distinct power division ratio over the two bands. . Int. J. RF Microw. Comp. Aid. Eng. , 23 : 90 – 98 .
   Web of Science ®Google Scholar
• Sinchangreed , V. , Uthansakul , M. and Uthansakul , P. Design of tri-band quadrature hybrid coupler for WiMAX applications. Proceedings of International Symposium on Intelligent Signal Processing and Communication Systems (lSPACS) . December 7–9 , Chiang Mai , Thailand. pp. 1 – 4 .
   Google Scholar
• Tanigawa , S. , Hayashi , K. , Fujii , T. , Kawai , T. and Ohta , I. Tri-band/broadband matching techniques for 3-dB branch-line couplers. Proceedings of 37th European Microwave Conference . October 9–12 , Munich , Germany. pp. 560 – 563 .
   Google Scholar
• Yeung , L. 2011 . A compact dual-band 90° coupler with coupled-line sections. . IEEE Trans. Microw. Theory Tech. , 59 : 2227 – 2232 .
   Web of Science ®Google Scholar