Novel 3D Hilbert microstrip resonators

Crnojević‐Bengin, Vesna; Budimir, D.

doi:10.1002/mop.20943

Cited by 12 publications

(4 citation statements)

References 6 publications

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“…The concept of fractal filters can be extended to multilayer structures, where three-dimensional fractal lines are used to realize compact bandpass filters with the overall size equal to l g /25 Â l g /25 Â l g /25 (31).…”

Section: Bandpass Filters Using Advanced Geometriesmentioning

confidence: 99%

Advances in Planar Filters

Crnojević‐Bengin

Janković

2014

Wiley Encyclopedia of Electrical and Electronics Engineering

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Many microstrip filter configurations exist that exhibit advanced filtering characteristics, rely on new design techniques, or use original methods for filter miniaturization. For each filter type (lowpass, highpass, bandpass, and bandstop), we start with an overview of conventional planar filters, which are often used as a basis for the development of novel configurations, and then proceed to more advanced solutions. We classify the various advanced solutions found in the literature according to the underlying principle of design/operation: i) conventional filters using advanced geometries; ii) filters based on advanced theoretical concepts, such as the slow‐wave effect, defected ground structures (DGSs), electromagnetic‐bandgap (EBG) structures, or metamaterials (MTMs); and iii) filters based on advanced materials and technologies, such as superconducting, ferroelectric materials, and ferromagnetic materials. Finally, we present some of the advanced solutions not covered by the classification given above. We provide an overview of surface‐integrated waveguide (SIW) filters, followed by the discussion of various tunable and reconfigurable filter topologies. In the end, we present state‐of‐the art multiband filters.

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Section: Bandpass Filters Using Advanced Geometriesmentioning

confidence: 99%

Advances in Planar Filters

Crnojević‐Bengin

Janković

2014

Wiley Encyclopedia of Electrical and Electronics Engineering

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“…On the other hand, fractal curves have already demonstrated their potential to allow straightforward design of miniature band‐pass filters while preserving their performances [10–12]. However, fractal curves have been rarely used in the design of low‐pass filter, and then only as patterns for a defected ground structure [13].…”

Section: Introductionmentioning

confidence: 99%

“…From the fabrication point of view, it is often required that these filters involve only etching on one side of the substrate, without any modifications to the ground plane or use of vias. Setting aside configurations that rely on defect ground structures [1][2][3][4][5], a number of planar low-pass filters have been proposed recently with the aim to reduce size [6,7], improve cutoff rate [8] or out-of-band On the other hand, fractal curves have already demonstrated their potential to allow straightforward design of miniature band-pass filters while preserving their performances [10][11][12]. However, fractal curves have been rarely used in the design of low-pass filter, and then only as patterns for a defected ground structure [13].…”

Section: Introductionmentioning

confidence: 99%

Planar low‐pass filters based on hilbert fractal

Zemlyakov

Crnojević‐Bengin

2012

Micro & Optical Tech Letters

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Multiple Hilbert fractal lines with short circuits placed at specific positions are used to design two types of very compact planar low‐pass filters with high rate of cutoff. A simple design procedure is fractals shown, based on estimation of quasi‐lumped elements formed by the fractal line. Fabricated filters compare favorably with recently published filters, both in terms of size and performances. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2577–2581, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27158

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“…Fractals have been essentially investigated in the design of high-performance miniaturized antennas [5,6]. In the filtering domain, few filters based on fractal layout have been reported [7][8][9][10], but they are having a growing interest in the last years. For general information about fractal topologies, one can refer to Mandelbrot's reference [11].…”

Section: Introductionmentioning

confidence: 99%

Miniaturization of dual-mode resonators by fractal iteration for suppression of second harmonic

Hanna

Jarry

Kerhervé

et al. 2007

Int J RF and Microwave Comp Aid Eng

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We present a miniaturization technique for square dual-mode resonators. By using the Minkowski fractal iteration it is possible to obtain compact resonators. Furthermore, the second harmonic is highly attenuated, thus enhancing the rejection in the upper band. A fourth order filter using two dual-mode fractal resonators has been fabricated to illustrate these results. We use the suspended substrate technology to design these resonators, but the results can be extended to other technologies.

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Novel 3D Hilbert microstrip resonators

Cited by 12 publications

References 6 publications

Advances in Planar Filters

Advances in Planar Filters

Planar low‐pass filters based on hilbert fractal

Miniaturization of dual-mode resonators by fractal iteration for suppression of second harmonic

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