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Application of metamaterial unit cell in bandpass filter
Author(s) -
Jiusheng Li,
Tieying Du
Publication year - 2007
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.22659
Subject(s) - metamaterial , band pass filter , microstrip , microwave , return loss , capacitor , electronic engineering , inductor , materials science , optoelectronics , shunt (medical) , electrical engineering , engineering , telecommunications , voltage , medicine , antenna (radio) , cardiology
Using microstrip technology, a novel metamaterial unit cell is presented. The metamaterial unit cell consists of microstrip gaps and via hole whose behavior is equivalent to the combination of series capacitors and shunt inductors, respectively. A new chamfered band structure bandpass filter is designed and fabricated using the presented metamaterial unit cell. The transmission loss S 21 and return losses S 11 of the proposed bandpass filter are equal to −0.41 and −25.5 dB, respectively. The experimental and simulation results closely correspond to each other. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2109–2111, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22659