Multi Mode Resonators Based Triple Band Notch UWB Filter

Kamma, Anil; Das, Ranjan; Bhatt, Darshak; Mukherjee, Jayanta

doi:10.1109/lmwc.2017.2649383

Cited by 36 publications

(23 citation statements)

References 10 publications

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“…The proposed filter is constructed on a lower dielectric substrate however its size is comparable to others reported to date, as shown in Table 1. The UWB filter in references [8], [13] and [17] require short-circuit vias to ground. In references [10], [12], [14]- [16], and [18] the filter structure employs a defected ground plane which is located under the interdigital feed-lines.…”

Section: Parameter Analysis and Measured Resultsmentioning

confidence: 99%

Quasi-elliptic ultra-wideband bandpass filter with super-wide stopband

Riaz

Virdee

Shukla

et al. 2019

AEU - International Journal of Electronics and Communications

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This paper describes a low-loss and compact planar ultra-wideband (UWB) quasi-elliptical bandpass filter, which is based on a via-free multimode resonator (MMR) that requires no defected ground plane. The MMR structure essentially consists of a step impedance transmission-line resonator that is loaded centrally with a folded open-circuited stub. The MMR structure is also loaded with two pairs of short high impedance stubs with their ends folded towards the central stub. The proposed MMR structure excites several resonant modes comprising three even and two oddmodes within the filter's passband. The resulting transmission response is highly selective with a low-loss (0.4 dB) passband across 3.60 GHz-11.3 GHz when fabricated on a conventional dielectric substrate, which is otherwise only possible using high temperature superconductors. In addition, the structure generates transmission zeros to yield a filter that exhibits an extremely wide stopband extending up to 35.5 GHz for S21 ≥ 20 dB. The via-free planar filter structure makes its design and construction easy and economical for mass production. The filter's performance was verified through measurements. The planar filter structure can be easily manufactured using standard PCB technology.

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Section: Parameter Analysis and Measured Resultsmentioning

confidence: 99%

Quasi-elliptic ultra-wideband bandpass filter with super-wide stopband

Riaz

Virdee

Shukla

et al. 2019

AEU - International Journal of Electronics and Communications

View full text Add to dashboard Cite

show abstract

“…The gold on the input and output 50 Ω line of the filter was reserved for good electrical connection between the pins of the connectors and the input and output ports. The dimension of the whole filter was 9.55 × 6.38 × 0.50 mm 3 with the connectors removed. The size of the shielding box was optimized in simulation for moving its resonances outside the test band.…”

Section: Fabrication and Measurement Of Uwb Filtermentioning

confidence: 99%

“…Constructing a multi-mode resonator is one of the useful methods for designing a UWB filter, and was first proposed by Lei Zhu et al in 2005 [1]. At present, many kinds of UWB filters based on multi-mode resonators have been widely studied by researchers [2][3][4][5][6][7][8][9]. Stub-loading configurations [2,6,8,10,11] and ring resonators [12,13] are two effective approaches to realizing the multi-mode resonator.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Compact Multi-Mode UWB Filter using High-Temperature Superconductivity

Zhou

Long

et al. 2019

Electronics

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A high-performance miniaturized multi-mode ultra-wide band (UWB) filter is proposed in this paper. The simple compact quintuple-mode resonator is constructed by loading three sets of open stubs on a modified conventional triple-mode resonator. Even and odd mode analytical methods are applied to analyze it. In addition, the function of each part of the filter is studied in cases of weak/strong coupling. In order to further improve the insertion loss, selectivity and out-of-band suppression, the designed filter is finally fabricated on double-sided YBCO/MgO/YBCO high-temperature superconducting (HTS) film. The test results show that the HTS UWB filter has excellent performance, and the simulation results are in good agreement with the test ones. The 3-dB bandwidth covers 3.6 ~ 13.2 GHz. The maximum insertion loss in the band was only 0.32 dB, and the reflection was better than –15.1 dB. The band-edge roll-off rate was 56 dB/GHz and the upper stopband with 20 dB rejection extended to 20.7 GHz.

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“…So far, scholars have applied artificial electromagnetic structures to the design of microstrip filters. The traditional methods to realize notch microstrip filters such as using open or short stub loaded resonators [2,3]; using stepped impedance resonators [4,5]; using multimode resonators [6][7][8] such as T shaped resonators [9][10][11], E shaped resonators [12,13], ring resonators [14], Hilbert-Fork Resonators [15]; coupling resonators are designed by coupling structure between microstrips [16,17]. In addition, microstrip notch filters can be realized by constructing a defective grounding structure (DGS) [18,19].…”

Section: Introductionmentioning

confidence: 99%

Triple Notches Bandstop Microstrip Filter Based on Archimedean Spiral Electromagnetic Bandgap Structure

Zheng

Jiang

2019

Electronics

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With the development of artificial electromagnetic structures, defective grounding structures (DGS), defective microstrip structures (DMS), and electromagnetic bandgap (EBG) have been widely used in the design of microstrip filters. In this paper, a triple notches ultra wideband bandstop microstrip filter based on Archimedean spiral electromagnetic bandgap structure (ASEBG) structure is proposed. Firstly, the equivalent circuit of ASEBG is analyzed, and L and C values are extracted by using Advanced Design System (ADS). Secondly, the correctness of the lumped parameter model is verified by comparing the High Frequency Structure Simulator (HFSS) simulation results with the measured results. Finally, the influence of ASEBG structure parameters on resonant performance is analyzed by HFSS simulation, and the filter parameters are further optimized. By coupling ASEBG structure to existing double notch microstrip filters, a triple notches ultra wideband bandstop microstrip filter is realized. This method can also be used in the design of other microstrip devices with stopband characteristics. The three bandgap center frequencies of the proposed triple notches ultra wideband bandstop microstrip filter are 3.5, 5.2, and 7.4 GHz, respectively. The corresponding maximum attenuation of the three stopbands is 33.6, 24.8, and 21.7 dB, respectively.

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Multi Mode Resonators Based Triple Band Notch UWB Filter

Cited by 36 publications

References 10 publications

Quasi-elliptic ultra-wideband bandpass filter with super-wide stopband

Quasi-elliptic ultra-wideband bandpass filter with super-wide stopband

High-Performance Compact Multi-Mode UWB Filter using High-Temperature Superconductivity

Triple Notches Bandstop Microstrip Filter Based on Archimedean Spiral Electromagnetic Bandgap Structure

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