A Novel Compact Microstrip Uwb BPF With Quad Notched Bands Using Quad-Mode Stepped Impedance Resonator

Wu, Lei; Hu, Pengli; Li, Changhao; Li, Luetao; Tang, and Chengpei

doi:10.2528/pierl18123002

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Ultra-wideband (UWB) radio technology has attracted much attention since the U.S. Federal Communications Commission (FCC) allocated a frequency range with a bandwidth of 7.5 GHz (3.1 ∼ 10.6 GHz) for unlicensed radio applications [1]. Many applications have been developed based on UWB technology such as short-range broadband communication, radar sensing, and body-area networking.…”

Section: Introductionmentioning

confidence: 99%

A New Compact Microstrip Ultra-Wideband (Uwb) Bandstop Filter With Good Performance

Gao¹,

Wu²,

Zhang³

2020

PIER Letters

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A new compact ultra-wideband (UWB) bandstop filter with good performance is proposed. The proposed UWB bandstop filter is composed of two pairs of quarter-wavelength resonators, a high impedance main transmission line, a half-wavelength resonator, and an H-shaped multiple-mode ring resonator. The proposed H-shaped multiple-mode ring resonator is introduced to achieve three transmission poles appearing in the lower and upper passbands thus to improve the characteristics of selectivity. The proposed quarter-wavelength resonators and half-wavelength resonator are used to obtain four transmission poles showing up in stopband thus to improve the in-band suppression characteristics. To validate the design concept, a new compact UWB bandstop filter with high selectivity and good suppression is designed and fabricated. UWB stopband, low insertion losses, and good selectivity are achieved as demonstrated in both simulation and experiment.

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Section: Introductionmentioning

confidence: 99%

A New Compact Microstrip Ultra-Wideband (Uwb) Bandstop Filter With Good Performance

Gao¹,

Wu²,

Zhang³

2020

PIER Letters

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“…A new UWB bandpass filter with the sharp notched band at 5.8 GHz is presented by Liu et al , 2019 using defected ground structures (DGS). A novel compact UWB bandpass filter with quad notched bands at 5.2, 5.8 7.0 GHz and 8.0 GHz based on quad-mode SIR is explored by Wu et al , 2019.…”

Section: Introductionmentioning

confidence: 99%

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

Karthie

Salivahanan

2019

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Purpose This paper aims to present the design of a novel triangular-shaped wideband microstrip bandpass filter implemented on a low-cost substrate with a notched band for interference rejection. Design/methodology/approach The conventional dual-stub filter is embedded with simple fractal-based triangular-circular geometries through various iterations to reject wireless local area network (WLAN) signals with a notched band at 5.8 GHz. Findings The filter covers a wide frequency band from 3.1 to 8.8 GHz and has a fractional bandwidth of 98 per cent with the lower passband of 57.5 per cent and upper passband of 31.6 per cent separated by a notched band at 5.8 GHz. The proposed wideband prototype bandpass filter is fabricated in FR-4 substrate using PCB technology and the simulation results are validated with measurement results which include insertion loss, return loss and group delay. The fabricated filter has a sharp rejection of 28.3 dB at 5.8 GHz. Measured results show good agreement with simulated responses. The performance of the fractal-based wideband filter is compared with other wideband bandpass filters. Originality/value In the proposed work, a fractal-based wideband bandpass filter with a notched band is reported. The conventional dual-stub filter is deployed with triangular-circular geometry to design a wideband filter with a notched band to suppress interference signals at WLAN frequency. The proposed wideband filter exhibits smaller size and better interference rejection compared to other wideband bandpass filter designs implemented on low-cost substrate reported in the literature. The aforementioned wideband filter finds application in wideband wireless communication systems.

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A Compact UWB Bandpass Filter with WLAN Band Rejection Using Hybrid Technique

Bakali

Elftouh

Farkhsi

et al. 2020

Procedia Manufacturing

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A Novel Compact Microstrip Uwb BPF With Quad Notched Bands Using Quad-Mode Stepped Impedance Resonator

Cited by 4 publications

References 10 publications

A New Compact Microstrip Ultra-Wideband (Uwb) Bandstop Filter With Good Performance

A New Compact Microstrip Ultra-Wideband (Uwb) Bandstop Filter With Good Performance

Fractal-based triangular bandpass filter with a notched band for interference rejection in wideband applications

A Compact UWB Bandpass Filter with WLAN Band Rejection Using Hybrid Technique

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