Design a new structure 2.4 GHz/5.2 GHz dual-band bandpass filters on the MgTa1.5Nb0.5O6 ceramic

✍ Scribed by Cheng-Fu Yang; Hung-Chi Yang; Chien-Min Cheng; Kai-Huang Chen; Ying-Chung Chen

• Publisher: John Wiley and Sons
• Year: 2009
• Tongue: English
• Weight: 147 KB
• Volume: 51
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.24264

✦ Synopsis

Abstract

In this article, a λ/2 U‐shaped hairpin resonator was contained in a modified end‐coupled microstrip line. The increase of the sizes of U‐shaped hairpin resonator and modified end‐coupled microstrip line had no influence on the lower operating frequency and would shift the upper operating frequency to lower values. After finding the best designed parameters, a miniature dual‐band microstrip bandpass filter with three transmission zeros generated in the stop‐bands was developed on the MgTa~1.5~Nb~0.5~O~6~ microwave dielectric ceramic substrates. The dual‐band filter had the central frequencies of 2.45 and 5.2 GHz and was suitable for the applications in the modern WLAN communication. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1085–1087, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24264