Abstract
A new periodic loaded coplanar waveguide (CPW) low-pass filter with very sharp cutoff has been designed and fabricated. The device consists of a CPW structure with T-shaped periodic patterns on both the central strip and ground planes. With such a design, capacitive coupling is added between the signal strip and ground planes at periodic positions, resulting in a filtering action and slow-wave effect. In addition to a sharp cutoff, the device exhibits very low insertion loss in the pass band, wide rejection bandwidth, and simple design and fabrication.
Original language | English |
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Pages (from-to) | 190-193 |
Journal | Microwave and Optical Technology Letters |
Volume | 38 |
DOIs | |
Publication status | Published - 5 Aug 2003 |
Keywords
- Coplanar waveguide technology
- Microwave filters
- Slow-wave structures