2014/09/30 by Y.S. Mezaal, Yaqeen S. Mezaal, J.K. Ali +3
Engineering · #Antenna Design and Analysis #Electromagnetic Compatibility and Noise Suppression #Microwave Engineering and Waveguides
paper · doi:10.1080/00207217.2014.971351
openalex publication_date 2014/09/30 · crossref created 2014/09/30 · crossref issued 2014/10/28 · crossref published 2014/10/28 · crossref published-online 2014/10/28 · crossref published-print 2015/08/03 · crossref deposited 2018/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31 · crossref indexed 2026/07/31
This paper presents new microstrip bandpass filter design topologies that consist of dual edge-coupled resonators constructed in the form of Moore fractal geometries of second and third iteration levels. The space-filling property for proposed fractal filters has found to produce reduced size shapes in accordance with sequential iteration levels. These filters have been prepared for ISM band applications at a centre frequency of 2.4 GHz using a substrate with a dielectric coefficient of 10.8, dielectric thickness of 1.27 mm and metallisation thickness of 35 µm. The output responses of each fractal bandpass filter have been determined by a full-wave-based electromagnetic simulator Sonnet software package. Simulated and experimental results are approximately compatible with each other. These responses clarify that these fractal filters have good transmission and return loss characteristics with blocked higher harmonics in out-of-band regions.