Compact Tri-Band Bandpass and Bandstop Filters Based on Hilbert-Fork Resonators

Janković, Nikolina; Geschke, Riana; Crnojević‐Bengin, Vesna

doi:10.1109/lmwc.2013.2258005

Cited by 62 publications

(61 citation statements)

References 9 publications

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“…It is clear that the response of the fabricated filter agrees well with the simulated ones. Table 1 shows the performance comparison of the proposed filter with other recently reported tri-band BPFs [1][2][3][4][5][6][7]. The proposed filter has a more compact size with high frequency selectivity.…”

Section: Resultsmentioning

confidence: 99%

“…Various tri-band BPFs have been extensively proposed and studied [1][2][3][4][5][6][7]. The most direct method to implement microstrip multi-band BPF is combining multi-sets of different resonators with common input and output [1].…”

Section: Introductionmentioning

confidence: 99%

“…However, these filters generally occupy a large area. On the other hand, dual-mode or multi-mode resonators have been reported to improve the performance of the triband BPFs [2,3], while they always own complicated structures. Another widely used method to design tri-band filters is employing the stub loaded stepped-impedance resonators (SIRs).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-Tl Resonator and Transversal Stepped-Impedance Resonator

Cao

Yi²,

Chen³

et al. 2015

PIER Letters

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Abstract-A novel compact tri-band band-pass filter (BPF) with transversal signal interaction concepts, based on composite right/left-handed transmission lines (CRLH-TLs) resonator and parallel stepped impedance resonator (SIR), is presented. The main path is based on a dual-mode CRLH-TL resonator, which exhibits the first two passbands. The secondary path is a SIR, which contributes to the third passband and generates another transmission zero between the first and second passbands simultaneously. The proposed filter has been simulated, fabricated and measured. Both the simulated and measured results show that the filter has a high selectivity with a compact size as small as 0.18λg × 0.12λg.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-Tl Resonator and Transversal Stepped-Impedance Resonator

Cao

Yi²,

Chen³

et al. 2015

PIER Letters

View full text Add to dashboard Cite

show abstract

“…Multi-band bandstop filters play an important role and are tremendously preferred, which can be simultaneously used for stopping different signal frequencies. Some effective methods have been proposed to develop dual-band [1][2][3][4] and triple-band bandstop filters [5][6][7][8][9][10][11][12]. However, the design of triple-band bandstop filters (TB-BSFs) and controlling the stopband frequencies within the specified band are difficult.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, relatively less works have been done on TB-BSFs [5][6][7][8][9][10][11][12]. Recently, some TB-BSFs are designed by using series LC resonators and admittance inverters [5], T-shaped defected microstrip structure [6], cross coupling stubs [7], square patch resonator [8], defected microstrip structure (DMS) and E-shaped defected ground structure (DGS) with open-loop resonators coupled to the microstrip line [9], U-shaped DGS [10], Hilbert-Fork resonator [11] and by using meander line stepped impedance resonator [12]. Multi-ring complementary split ring resonators (multi-ring CSRRs) [13], and meandered DMS (MDMS) structure [14] have also been utilized to design the Triple-Band BSFs.…”

Section: Introductionmentioning

confidence: 99%

Compact Triple-Band Bandstop Filters Using Embedded Capacitors

Kumar

Verma

2016

PIER Letters

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Abstract-This paper presents a design of compact a triple-band bandstop filter (BSF) using embedded chip capacitors. The presented BSF is useful to suppressing the signal frequencies 2.2 GHz, 5.53 GHz and 4.15 GHz from the WLAN and UWB band with attenuation level 33.5 dB, 27.6 dB and 24.9 dB, respectively. The quality factors of the three bands are 5.21, 31.92 and 79.0, respectively. The simulated and measured results are presented to validate the concept. Such BSFs could find application in modern communication systems to suppress the potential interference of the unwanted frequencies from the WLAN and UWB band.

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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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Compact Tri-Band Bandpass and Bandstop Filters Based on Hilbert-Fork Resonators

Cited by 62 publications

References 9 publications

A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-Tl Resonator and Transversal Stepped-Impedance Resonator

A Novel Compact Tri-Band Bandpass Filter Based on Dual-Mode CRLH-Tl Resonator and Transversal Stepped-Impedance Resonator

Compact Triple-Band Bandstop Filters Using Embedded Capacitors

Advances in Planar Filters

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