Article

Dual‐band bandpass filter using defected ground structure

Wireless Communication Laboratory, Faculty of Science and Technology, University of Macau, Macau, China
Microwave and Optical Technology Letters (Impact Factor: 0.59). 08/2006; 48(11):2259 - 2261. DOI: 10.1002/mop.21929

ABSTRACT A new I-shaped defected ground structure (DGS) is used to relocate the microstrip resonator's second harmonic at the proximity of the fundamental passband to realize dual-band bandpass filter. This DGS is validated by a compact dual-band bandpass filter at 1.44 and 2.35 GHz with simulations and measurements. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2259–2261, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21929

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