Title :
An ultra broadband ferriteless planar transmission line transformer
Author :
Horn, Johannes ; Boeck, Georg
Author_Institution :
Microwave Eng. Group, Berlin Univ. of Technol., Germany
Abstract :
An equivalent circuit based on multi-conductor line theory for planar transmission line transformers (TLT) is presented. Its validity is demonstrated for a 50Ω to 12.5Ω TLT. The device is realized on a three metal layer PCB. It operates at frequencies from 200 MHz up to 5.5 GHz.
Keywords :
coaxial cables; equivalent circuits; high-frequency transformers; impedance matching; magnetic microwave devices; power electronics; transformers; transmission line theory; transmission lines; 200 to 5.5 GHz; 50 to 12.5 ohms; circuit; multiconductor line theory; planar transmission line transformers; three metal layer PCB; ultra broadband ferriteless planar transmission line transformer; Bandwidth; Coaxial cables; Coaxial components; Equivalent circuits; Frequency; Microstrip; Planar transmission lines; Power transmission lines; Surface impedance; Transmission line theory;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1262950
