论文信息 - A compact filter‐combined ultra‐wide band antenna for UWB applications

A compact filter‐combined ultra‐wide band antenna for UWB applications

We have proposed a compact filter-combined ultra-wide band antenna for the use of DS-UWB low band or MB-OFDM lower three bands (3.1–5.2 GHz). The designed antenna has a microstrip-fed trapezoidal radiating patch, UWB band pass filter using the dumbbell-shaped DGS (defected ground structure), and IDC (interdigital capacitor): two steps for impedance matching, and microstrip feeding. Three kinds of prototypes (trapezoidal UWB antenna, UWB band pass filter, and the compact filter-combined ultra wideband antenna) are fabricated and measured. The designed antenna has the figure-of-eight radiation pattern, wide bandwidth, and negligible dispersion over the operating frequency band. Details of the proposed antenna design and the simulated and measured results are presented and discussed. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2839–2845, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23839

Jung N. Lee | Il H. Choi | Jong K. Park

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