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Design of compact microstrip lowpass filters using coupled half-circle defected ground structures (DGSs)

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6 Author(s)
A. Boutejdar ; Chair of Microwave Engineering University of Magdeburg, Germany ; A. Sherbini ; W. Ali ; S. Fouad
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In this paper we have proposed a new half-circle resonators and investigated different coupling effects in order to realize a compact structure. The use of DGS in form of halfcircle shape improves the stop band characteristics. The new DGS-form allows a compact slot with a double coupling, thus a controlled of the resonance pole. The new filter has been designed, fabricated and measured. Good agreement between simulated and measured results has been achieved.

Published in:

2008 IEEE Antennas and Propagation Society International Symposium

Date of Conference:

5-11 July 2008