RF Properties of LTCC BST Thick Film Made by MicroPen

Autor:	Ahmad Safari, Vamsi Krishna Palukuru, Heli Jantunen, Chi Shiung Hsi, Tao Hu
Rok vydání:	2009
Předmět:	Permittivity Materials science Fabrication business.industry Sintering Dielectric Condensed Matter Physics Microstructure Electronic Optical and Magnetic Materials Electric field visual_art visual_art.visual_art_medium Optoelectronics Dielectric loss Ceramic business
Zdroj:	Ferroelectrics. 388:17-22
ISSN:	1563-5112 0015-0193
Popis:	The direct-writing technique by MicroPen provides maskless fabrication method for complex and multilayer structures. In this work, low-temperature co-firing ceramic (LTCC) BST paste was fabricated and structures for high frequency evaluation were formed by MicroPen. The results showed uniform microstructures with some porosity after sintering at 900 °C. The dielectric properties were characterized in the frequency range of 0.5 to 13.5 GHz using coplanar waveguides. The ϵ r and tanδ of the LTCC BST thick film were 57.5–41 and 0.013–0.007 with applied electric field of 0-10 V/μm, respectively at 5 GHz. The tunability obtained was 28 % at 10 V/μm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f11ee427d8b276cce3f2aafcdb4a261d https://doi.org/10.1080/00150190902963682 Zobrazit plný text záznamu