Experimental characterization of a planar transmission-line transformer in multilayered high dielectric constant film structure

✍ Scribed by Luciene S. Demenicis; Luiz Fernando M. Conrado; Walter Margulis; Maria Cristina R. Carvalho

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 528 KB
• Volume: 52
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.25154

✦ Synopsis

Abstract

This article describes the complete experimental characterization of a 10‐mm long planar transmission‐line transformer (TLT) in a multilayered high dielectric constant film structure. The multilayered configuration was obtained by deposition of a high dielectric constant BaTiO~3~ (BTO) film over the conductors printed on conventional alumina bulk substrates. A transformation impedance level from 50 to 10 Ω could be achieved with comfortable transversal dimensions using this TLT. Frequency and time domain experimental results have confirmed theoretical predictions for this wideband compact device. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1337–1340, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25154