Miniaturized size of dual-band-meandered branch-line coupler for WLAN application

✍ Scribed by N. M. Jizat; S.K. A. Rahim; T. A. Rahman; A. Y. Abdulrahman; M. I. Sabran; P. S. Hall

• Publisher: John Wiley and Sons
• Year: 2011
• Tongue: English
• Weight: 727 KB
• Volume: 53
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.26312

✦ Synopsis

Abstract

A new method of a dual‐band miniaturized branch‐line coupler (BLC) is presented with two widely separated bands (f~2~ > 2__f__~1~) for wireless local area network application. Partially meandered lines are used as the coupler's shunt arms; and are designed to operate at f~1~ = 2.45 GHz and f~2~ = 5.8 GHz. There are 65 and 90% reduction in circuit area compared to the previous research design. Theoutput signal ports have an equal power split within measurement accuracy and 2° error at the resonant frequencies. The simulated and measured results are in good agreement, thereby verifying the design concept. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2543–2547, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26312