𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Design of novel miniaturized fractal-shaped branch-line couplers

✍ Scribed by Wen-Ling Chen; Guang-Ming Wang

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
123 KB
Volume
50
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Although miniaturized and fractal‐shaped branch‐line couplers have been reported by many researchers, their operating bandwidth are narrowed and shifted greatly, thus the application of these techniques were limited. In this article, we presented an exact design technique to obtain compact and fractal‐shaped branch‐line couplers for a given frequency. As an example, novel fractal‐shaped branch‐line couplers operated at 2.4 GHz using Koch fractal shapes of different iteration orders have been designed successfully, and the designed couplers all operated at the designed frequency and achieved a maximal 81.8% size reduction. And furthermore, the operating frequency and its bandwidth are virtually unaltered. The proposed method is verified by the measurement results. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1198–1201, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23316

📜 SIMILAR VOLUMES

Miniaturization of wideband branch-line
Miniaturization of wideband branch-line couplers using fractal-shaped geometry
✍ Wen-Ling Chen; Guang-Ming Wang; Chen-Xin Zhang 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 249 KB

## Abstract In this article, we present a technique to miniaturize the cascaded wideband branch‐line couplers using fractal‐shaped geometry. As an example, four‐branch couplers operated at 2.0 GHz employing Koch fractal shapes of different iteration orders have been designed successfully. By meande

Miniaturized microstrip branch-line coup
Miniaturized microstrip branch-line couplers with the approach of π-model
✍ Ching-Wen Tang; Ming-Guang Chen 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 199 KB

## Abstract The newly method to implement the branch‐line couplers has been proposed in this letter. Using the approach of π‐model, the size of branch‐line coupler can be miniaturized easily. Especially, the proposed coupler without using any lumped element can be easily fabricated on the printed c

Analysis of miniaturized 3 dB branch-lin
Analysis of miniaturized 3 dB branch-line hybrid couplers using distributed MIM capacitors
✍ Sung-Chan Jung; Renato Negra; Fadhel M. Ghannouchi 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 863 KB

The far-field radiation characteristics of the proposed antenna were also investigated. As can be seen in Figure 5, the measured results show that the radiation patterns (co-polar and cross-polar patterns) at 1.9 GHz, 2.1 GHz, and 2.3 GHz operating frequencies show an approximately similar general p

Miniaturized size of dual-band-meandered
Miniaturized size of dual-band-meandered branch-line coupler for WLAN application
✍ N. M. Jizat; S.K. A. Rahim; T. A. Rahman; A. Y. Abdulrahman; M. I. Sabran; P. S. 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 727 KB

## 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

A miniaturized millimeter-wave branch-li
A miniaturized millimeter-wave branch-line coupler using nonsymmetrical T-shape structure with quasi-stepped impedance resonator
✍ Miin-Shyue Shiau; Shih-Yi Yuan; Shry-Sann Liao; Pou-Tou Sun; Don-Gey Liu 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 237 KB

## Abstract In this study, a novel ka‐band compact‐size branch‐line coupler was proposed. The coupler was designed and fabricated with WIN Semiconductors 0.15‐μm pseudomorphic high electron‐mobility transistor process. The design method, simulation data, and measurement results of the proposed coup

Analysis and design of novel dual-band b
Analysis and design of novel dual-band branch line coupler with patterned ground plane
✍ Changjiang You; Xiaowei Zhu 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 364 KB 👁 1 views

## Abstract This article presents the novel dual‐band planar 90° branch line coupler with patterned ground plane, sometimes referred to as ‘defected ground structure.’ In the new layout, two cross coupling branches are added to the conventional branch line coupler. The additional branches make the