A Novel Tri-Band Branch-Line Coupler using Stepped-Impedance Resonator
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10.5120/6847-9370 |
Farnoosh Shirkani, Alireza Mallahzadeh and Navid Daryasafar. Article: A Novel Tri-Band Branch-Line Coupler using Stepped-Impedance Resonator. International Journal of Computer Applications 45(14):10-12, May 2012. Full text available. BibTeX
@article{key:article,
author = {Farnoosh Shirkani and Alireza Mallahzadeh and Navid Daryasafar},
title = {Article: A Novel Tri-Band Branch-Line Coupler using Stepped-Impedance Resonator},
journal = {International Journal of Computer Applications},
year = {2012},
volume = {45},
number = {14},
pages = {10-12},
month = {May},
note = {Full text available}
}
Abstract
In this study, a novel structure of tri-band branch-line coupler is proposed using stepped-impedance (SIR) resonator to control the frequency ratio between the second and first resonance frequencies of such resonator. The fundamental characteristic of such resonators, the frequency ratio between the second and first resonance frequencies, is targeted as a key factor in arbitrary tuning the resonance frequencies. Based on the first and second spurious resonance harmonic of the SIR, a triple branch-line coupler is designed and simulated. The proposed BLC is shown to demonstrate a tri-band BLC with central frequencies located at 0. 9, 2. 6 and 4. 2 GHz, respectively.
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