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Abstract: This paper presents the design, simulation, fabrication and measurement of a wideband bandpass filter with wide stopband performance operating at 3.5 GHz. The proposed filter consists of two parallel coupled lines (T-PCL) centered by T-inverted shape. The location of transmission zeros can be adjusted by varying the physical lengths of T-inverted shape to improve the filter selectivity. The wide bandwidth is achieved through enhanced coupling between the input and the parallel coupled lines. Due to the transmission zeros in the lower and upper stopbands, the filter exhibits good performance including an extremely wide stopband and sharp attenuations near the passband together with low insertion and good return losses in the passband. The filter performance is investigated numerically by using CST-MWS. Finally, the microstrip wideband BPF with minimum insertion losses 0.3 dB, centered at 3.5 GHz with a 3-dB fraction bandwidth of 70 % and four transmission zeros is implemented and verified experimentally. In addition, good agreement between the simulated and measured results is achieved.
Fuente: Progress In Electromagnetics Research C (PIER C), 2016, 67, 143-152
Editorial: EMW Publishing
Año de publicación: 2016
Nº de páginas: 10
Tipo de publicación: Artículo de Revista
DOI: 10.2528/PIERC16062204
ISSN: 1937-8718
Consultar en UCrea Leer publicación
YECHOU, LAHCEN
ABDELWAHED TRIBAK
KACIM, MOHAMED
ZBITOU, JAMAL
ANGEL MEDIAVILLA SANCHEZ
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