Novel reduced-size coplanar-waveguide bandpass filter using the new folded open stub structure

Reduced-size microstrip four-pole bandpa

Reduced-size microstrip four-pole bandpass filter using two-layer structure with quarter-wavelength resonators and open stub inverters

✍ Azzeddine Djaiz; Tayeb A. Denidni; Halim Boutayeb 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 185 KB

## Abstract A new miniature microstrip four‐pole bandpass filter using a two‐layer structure with quarter‐wavelength resonators and open stub inverters is proposed. The coupling between the resonators in the two layers is achieved via a slot etched on a common ground plane located between the layer