The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS
Transactions ID Number: 54-178
Full Name: Mouloud CHALLAL
Position: Lecturer
Age: ON
Sex: Male
Address: University of Boumerdes, Institute of Electrical Engineers and Electronics (IGEE, Ex. INELEC), Department of Electronic, 35000 Boumerdes
Country: ALGERIA
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E-mail address: mchallal@gmail.com
Other E-mails: mouloud.challal@uclouvain.be
Title of the Paper: Comparative Study of Three Shapes of DGS Pattern and Design of Compact Microstrip Low-Pass and Band-Pass Filters
Authors as they appear in the Paper: Mouloud Challal, Frederick Labu, Mokrane Dehmas and Arab Azrar
Email addresses of all the authors: mchallal@gmail.com
Number of paper pages: 10
Abstract: In this paper, three types of defected ground structure (DGS) units which are triangular-head (TH), rectangular-head (RH) and U-shape (US) are investigated and their characteristics are compared each other. Moreover, they are used in the design of low-pass filters (LPF) and band-pass filters (BPF) and the obtained performances of each are examined. The LPF employing RS-DGS geometry presents the advantages of compact size, low-insertion loss and wide stopband compared to the other filters. It provides cutoff frequency of 2.5 GHz, largest rejection band width of 20 dB from 2.98 to 8.76 GHz, the smallest transition region and the smallest sharpness of the cutoff frequency. The BPF based on RS-DGS has the highest bandwidth (BW) of about 0.74 GHz and the lowest center frequency of 3.24 GHz whereas the other BPFs have BW less than 0.7 GHz.
Keywords: Defected ground structure (DGS), low-pass filter (LPF) and band-pass filter (BPF).
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