A New Ultracompact Narrow Bandpass Microstrip Filter Using Double-Negative Quasiplanar Cells.

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Publisher: Hindawi Limited
Document Type: Article
Length: 3,301 words
Lexile Measure: 1490L

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Abstract :

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.

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Gale Document Number: GALE|A625052486