2020
DOI: 10.1002/mop.32503
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New design of an adjustable compact microstrip lowpass filter using Z‐shaped resonators with low VSWR

Abstract: In this article, an adjustable microstrip lowpass filter(LPF) with the cut‐off frequency (fc) at 1.59 GHz is designed and fabricated. The proposed structure is composed of a Z‐shaped resonator as basic resonator and a combination of modified T‐shaped and Z‐shaped resonators as suppressor units. To describe a theoretical design, the L‐C equivalent circuit of the basic resonator and also its transfer function are calculated precisely; then, the location of the first transmission zero (TZ) is accurately computed.… Show more

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Cited by 4 publications
(2 citation statements)
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“…Planar microstrip LPF has attracted great attention due to its advantages of small size, low‐cost and easy of fabrication. To date, several structures have been reported to obtain high‐performance lowpass filters 1‐14 . In Reference 3, a microstrip low‐pass filter using a stepped impedance hairpin resonator with a pair of coupled stepped impedance resonators (SIRs) inside is presented.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Planar microstrip LPF has attracted great attention due to its advantages of small size, low‐cost and easy of fabrication. To date, several structures have been reported to obtain high‐performance lowpass filters 1‐14 . In Reference 3, a microstrip low‐pass filter using a stepped impedance hairpin resonator with a pair of coupled stepped impedance resonators (SIRs) inside is presented.…”
Section: Introductionmentioning
confidence: 99%
“…The LPF with two modified asymmetric hairpin resonators and four open‐circuited stubs has excellent rolling coefficient 9 . By exploiting Z‐shaped resonators, a sophisticated microstrip LPF is designed and fabricated in Reference 10. In Reference 11, a microstrip LPF with sharp roll‐off and wide stopband consisting of radial split ring resonator loaded by folded polygene patches is proposed.…”
Section: Introductionmentioning
confidence: 99%