Compact UWB bandpass filter based on grounded square patch resonator

Janković, Nikolina; Niarchos, G.; Crnojević‐Bengin, Vesna

doi:10.1049/el.2015.4087

Cited by 21 publications

(16 citation statements)

References 9 publications

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“…The proposed filter has comparable or better in-band performance in comparison to others, and it is characterized by very compact size, a wide upper stopband, and the smallest group delay variation. Although the filters presented in [9], [16], [18], [19], [20],…”

Section: Uwb Filter Design and Resultsmentioning

confidence: 99%

“…Majority of microstrip UWB filters are based on multimode resonators [5][6][7][8][9][10][11][12], however there are also configurations based on short-circuited stubs [13][14][15], parallel-coupled lines [16][17][18], patch resonators [19], multi-layer structures [20][21][22][23], composite right-/left-handed unit cells [24][25], composition of bandstop and bandpass filters [26], and coplanar waveguide structures [27].…”

Section: Introductionmentioning

confidence: 99%

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Compact circular-patch-based bandpass filter for ultra-wideband wireless communication systems

Sakotic¹,

Crnojević‐Bengin²,

Janković³

2017

AEU - International Journal of Electronics and Communications

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Ultra-wideband (UWB) is a radio technology that enables low-power-level, short-range, and wide-bandwidth communication, and it has been widely applied in personal area networks, precision geolocation, medical, surveillance, and vehicular radar systems. Since Federal Communications Commission released the unlicensed use of the UWB range (3.1-10.6 GHz), a significant attention has been paid to the development of UWB devices, particularly UWB bandpass filters. In this paper, we propose a novel UWB bandpass filter based on circular patch resonator that is grounded by via and perturbed by slits and defected ground structures. The resonator's behaviour is analysed in detail and it is shown that its specific configuration allows a flexible control of the three lowest resonant modes, which are used to form UWB passband. To demonstrate the potential of the resonator, a UWB filter has been designed, fabricated, and measured. The filter is characterized by the insertion loss lower than 1 dB and return loss higher than 17 dB within the passband, as well as by very small group delay variation of only 0.07 ns. Also, the filter exhibits suppression higher than 19 dB up to 30 GHz, and very small overall dimensions of only 0.31λ g x0.31λ g , and thus it outperforms other published UWB filters.

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Section: Uwb Filter Design and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact circular-patch-based bandpass filter for ultra-wideband wireless communication systems

Sakotic¹,

Crnojević‐Bengin²,

Janković³

2017

AEU - International Journal of Electronics and Communications

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“…The increasing/unceasing demands for high data rate communication and high accuracy positioning capabilities have driven research into new ultra-wideband (UWB) techniques, since the release of the unlicensed commercial application of UWB communication systems from 3.1 to 10.6 GHz. As the essential key components in ultrahigh-speed wireless communication and radar systems, UWB bandpass filters simultaneously with sharp cutoff regions, low insertion loss and a wide stopband are in great demand [1,2,3,4,5,6,7,8,9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

“…However, attenuation slope of the filter is 30.0 dB/GHz at higher band. UWB filter can also be designed based on a grounded square patch resonator with slots [4]. The filter has a very small size of only 0:26 g Â 0:26 g .…”

Section: Introductionmentioning

confidence: 99%

A compact wideband SIW-DGS filter with two independently controllable transmission zeros and sharp attenuation slopes

Guo

Zhang

2018

IEICE Electron. Express

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In this paper, the analysis and design of a wide band bandpass substrate integrated waveguide (SIW) filter are presented. A middle layer metal patch is designed in the SIW not only to create two transmission zeros due to 3D separate electric and magnetic coupling paths (SEMCP) but also miniaturize size of the filter. Since 3D electric and magnetic coupling paths are separate, the two transmission zeros above and below the passband can be independently controlled. Defected ground structure (DGS) is designed with substrate integrated waveguide not only for sharp rejection but also for its bandstop characteristics. The design is then verified by simulation and experiment.

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“…This effect makes deviation in resonant frequencies from actual frequency of resonator. Resonance condition occurs only if the average value of all sides of ring resonator is identical to that of integral multiple of λ g [18,19] which allow the signal to propagate across the structure. In initial mode, field will be maximum at coupling discontinuity and no field at its normal plane.…”

mentioning

confidence: 99%

A compact conductor-backed CPW-based dual bandpass filter for satellite S-band and C-band

Coumar

Tamilselvan

2020

Journal of Electrical Systems and Inf Technol

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RF filter circuits are generally in use in microwave system for the mitigation of spurious frequencies from other services. Bandpass filters are responsible for suppressing such spurious frequencies and higher-order harmonics in pass band [1]. The performances of filters are studied from the parameters like miniaturized geometry, intended pass band and attenuation band. Dual-band filters are most inevitable element in designing satellite communication model. S-band and C-band range is predominantly allocated for mobile services in satellite communication. So, BSFs are designed by metallic pattern at the backside of coplanar waveguide (CPW) structure [2]. CPW planar method is the most appropriate for designing satellite band filters because of easy integration with active and lumped elements. Metallic pattern-backed DB-BPF with coupling structure has been developed and demonstrated in Xiao et al. [3].

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Compact UWB bandpass filter based on grounded square patch resonator

Cited by 21 publications

References 9 publications

Compact circular-patch-based bandpass filter for ultra-wideband wireless communication systems

Compact circular-patch-based bandpass filter for ultra-wideband wireless communication systems

A compact wideband SIW-DGS filter with two independently controllable transmission zeros and sharp attenuation slopes

A compact conductor-backed CPW-based dual bandpass filter for satellite S-band and C-band

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