naa a22 4500 510795846 CHVBK 20180411083336.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11277-011-0494-1 doi (NATIONALLICENCE)springer-10.1007/s11277-011-0494-1 Chen Ming Institute of Microwave and Optics, Xi'an University of Posts and Telecommunications, Wei Guo Road, 710121, Chang'an District, Xi'an, China aut A Multi-Band Transformer for Two Arbitrary Complex Frequency-Dependent Impedances [Elektronische Daten] [Ming Chen] A multi-frequencies transformer for two arbitrary complex frequency-dependent impedances is presented. Design equations of the proposed transformer are derived, and particle swarm algorithm can be used to solve the resulting nonlinear equations. Some numerical examples for two-, three-, and four-section transmission line transformer were presented to verify the validity of the proposed design. Springer Science+Business Media, LLC., 2011 Complex frequency-dependent impedances nationallicence Multi-band nationallicence Transmission line transformer nationallicence Particle swarm algorithm nationallicence Wireless Personal Communications Springer US; http://www.springer-ny.com 68/3(2013-02-01), 981-991 0929-6212 68:3<981 2013 68 11277 https://doi.org/10.1007/s11277-011-0494-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-011-0494-1 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Chen Ming Institute of Microwave and Optics, Xi'an University of Posts and Telecommunications, Wei Guo Road, 710121, Chang'an District, Xi'an, China aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 68/3(2013-02-01), 981-991 0929-6212 68:3<981 2013 68 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer