Dual-band ferrite chip antenna for global positioning system and bluetooth applications

✍ Scribed by Seok Bae; Yang Ki Hong; Jae Jin Lee; Ji Hoodn Park; Jeevan Jalli; Gavin S. Abo; Won Mo Seong; Sang Hoon Park; Juk Sik Kum; Won Ki Ahn; Gi Ho Kim

• Book ID: 102950684
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 535 KB
• Volume: 53
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.25672

✦ Synopsis

Abstract

Dual‐band ferrite chip antenna having 105 mm^3^ of volume was fabricated with Ba~3~Co~2~Fe~24~O~41~(Co~2~Z)‐glass composite and antenna performance was evaluated. The permeability and permittivity of the composite were in the range of 1.92–2.12 and 7.33–7.45, respectively, from 1.575 to 2.45 GHz. Magnetic and dielectric loss tan δ of Co~2~Z‐glass composite was <3.5% in the 1.5–3.0 GHz range. The 3D average gain and bandwidth of the 40h‐shake‐milled and sintered Co~2~Z‐glass composite antenna were −1.27 dB and 355 MHz at 1.575 GHz, −4.08 dB and 270 MHz at 2.45 GHz, respectively. Simulated S‐parameter spectrum is in good agreement with experimental results. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:14–17, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25672