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Improved performance of EBGs on a co‐planar transmission line using tapered distribution
Author(s) -
Padhi Shantanu Kumar
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20228
Subject(s) - microwave , ripple , spurious relationship , planar , bandwidth (computing) , electromagnetic simulation , transmission line , metamaterial , electronic engineering , materials science , band pass filter , engineering , optoelectronics , optics , electrical engineering , computer science , telecommunications , physics , computer graphics (images) , voltage , machine learning
Conventional electromagnetic crystals or electromagnetic bandgaps (EBGs) with uniform distribution show spurious ripples in the pass band and poor stop‐band responses. This paper presents a detailed theoretical investigation of the performance of EBGs on a uniplanar transmission line using tapered distribution. The nonuniform size of the EBGs is used to improve the ripple height, 20‐dB rejection band, and selectivity of the filter over the pass‐band and stop‐band regions. The calculated S parameters exhibit significant improvement in ripple height and rejection bandwidth, as compared with the conventional EBG‐assisted coplanar transmission line. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 128–131, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20228