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Microstrip Elliptic-Function Low-Pass Filters Using Distributed Elements or Slotted Ground Structure

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2 Author(s)
Wen-Hua Tu ; Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX ; Kai Chang

This paper presents two microstrip elliptic-function low-pass filters, one using distributed elements and one using a slotted ground structure. The one using distributed elements consists of a microstrip line section in parallel with an interdigital capacitor; the other one using a slotted ground structure consists of a low-impedance microstrip line with a slotted ground structure cell under the center of the line. A transmission-line model and a full-wave simulation are used to calculate the inductance/capacitance values of the equivalent circuits. The design concept was validated through experiments showing good agreements with the full-wave simulated results

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 10 )