%0 Journal Article
%T A New Ultracompact Narrow Bandpass Microstrip Filter Using Double-Negative Quasiplanar Cells
%A Hashemi
%A Seyed Mohammad
%A Khawary
%A Mohammad Reza
%A Nayyeri
%A Vahid
%A Soleimani
%A Mohammad
%J -
%D 2020
%R https://doi.org/10.1155/2020/5654727
%X This paper presents a novel ultracompact narrow bandpass filter with high selectivity. The proposed filter is composed of cascading two basic cells. Each cell is basically a microstrip line loaded with a quasiplanar resonator and series gaps which can be fabricated using a standard multilayer printed circuit board technology. The structure is analyzed through an equivalent circuit and full-wave simulations. The simulation results are compared with experimental measurements demonstrating a good agreement between them. The measurement indicates that the realized bandpass filter at the center frequency of 1£¿GHz has a fractional bandwidth of 2.2%. Most importantly, in comparison with other similar recent works, it is shown that the proposed filter has the smallest size
%U https://www.hindawi.com/journals/ijap/2020/5654727/