A wide-band bandpass filter using properties of microstrip open-loop resonators with outer tuning stubs

Konpang, Jessada; Namahoot, A.; Akkaraekthalin, Prayoot

doi:10.1109/tencon.2004.1414849

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…10. White dots 1-4 are non-resonant nodes, black dots 5-12 are the resonant nodes and the connections (5,9), (6,10), (7,11), (8,12) represent each SRR. A coupling matrix model has been used to obtain the resonance frequencies and the couplings of the prototype as in [20].…”

Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

“…As it was stated, with ω 01 , ω 02 and BWR, it is now possible to get the dimensions of the physical structure of each SRR with the (2,6) 0.927 (I, 1) 1 (3,7) 0.927 (1, 2) 1 (4,8) 0.596 (2, 3) 1 (5,9) 0.766 (3, 4) 1 (6,10) 0.766 (4, O) 1 (7,11) 0.766 proposed design method explained in Section 4. The substrate used to design the prototype was the same used to fabricate the previous resonators.…”

Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

“…Different numerical and analytical techniques have been proposed to study the SRRs in [3,4]. SRRs have been proposed as resonators for several applications as microstrip band-pass filters as in [5][6][7], where the structures are used as half dual-mode resonators and open loops to reduce the filter size and get higher selectivity (thanks to their reduced footprint).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Castillo-Aranibar

Garca-Lampérez

Llorente‐Romano

et al. 2019

IET Microwaves, Antennas & Propagation

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In this study, a dual band band‐stop filter based on split ring resonators (SRR) over a ground plane with unequal rings is proposed and characterised. The proposed SRR design method, which is demonstrated here, ensures the control of the resonance frequencies and their respective bandwidths. The lengths and coupling regions of each ring are arbitrary, making possible the control of, not only the separation between the two generated resonances, but also the bandwidth ratio between the pass‐bands, or quality factors. The full characterisation of the resonators involves the computation of the resonant frequencies and the current distributions at the resonances. These current distributions are used to obtain the electromagnetic energy stored in the resonator that, in turn, is required to estimate the quality factor of each resonance. The dual band band‐stop filter is composed by four proposed SRRs coupled to a transmission line showing that, indeed, both the centre frequencies and its bandwidth ratio can be controlled. The presented results confirm the reliability of the proposed method in the design of passive devices.

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Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

Section: Srr-based Dual Band-stop Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Castillo-Aranibar

Garca-Lampérez

Llorente‐Romano

et al. 2019

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

show abstract

“…It emerges that such a resonator can also be interpreted as two quarter-wave resonators, coupled by a parallel capacitor, as used previously for straight microstrips [5]- [7], coplanar lines [8], [9], and quasi-lumped filters [10]. Examples of existing wide-band layouts are presented in [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Quasi-dual-mode microstrip spiral filters using first and second harmonic resonances

Huang¹

2006

IEEE Trans. Microwave Theory Techn.

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The range of bandwidths that can be implemented using spiral microstrip resonators has been extended using a structure with two patterned metal layers plus a ground plane, which also enhances compactness. Each microstrip section can be regarded as a dual-mode half-wave resonator employing the fundamental and second harmonic or as two coupled quarter-wave resonators. A fourth-order and an eighth-order filter are presented, both with 50% fractional bandwidth and 600-MHz center frequency, using basic printed-circuit-board fabrication. The eighth-order filter has an active area of approximately 45 mm 18 mm, and a linewidth of 0.5 mm. The topology, suitably scaled for higher frequency, may be suited for low-temperature co-fired ceramic filters.

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Development of miniature HTSC wide-band filter with open-loop resonators

et al. 2008

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A wide-band bandpass filter using properties of microstrip open-loop resonators with outer tuning stubs

Cited by 4 publications

References 3 publications

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Dual‐band band‐stop microstrip filter with controllable bands based on unequal split ring resonators

Quasi-dual-mode microstrip spiral filters using first and second harmonic resonances

Development of miniature HTSC wide-band filter with open-loop resonators

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