Microstrip low-pass filter using modified log periodic radial stub

Singh, Prashant Kumar; Tiwary, Anjini Kumar; Gupta, Nisha

doi:10.1109/aemc.2015.7509131

Cited by 2 publications

(4 citation statements)

References 8 publications

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“…The LPF is designed for 3 GHz cut‐off frequency. In LPF section, the radial stub connected with coupled lines offers wide stop band characteristic . However, this has little effect on BPF characteristic.…”

Section: Switchable Bpf–lpfmentioning

confidence: 99%

“…The calculation of equivalent circuit parameters, analysis, and parametric study of radial stub connected with parallel coupled line is well discussed . The cut‐off frequency can be changed by changing the radius of radial stub or by changing the length of coupled line or by changing the length of inductive line connected in series with 50 Ω line.…”

Section: Switchable Bpf–lpfmentioning

confidence: 99%

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Ultra‐compact switchable microstrip band‐pass filter–low‐pass filter with improved characteristics

Singh

Tiwary

Gupta

2016

Micro & Optical Tech Letters

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A novel, ultra‐compact switchable microstrip band‐pass filter–low‐pass filter (BPF–LPF) showing wide stop band and good attenuation characteristics is proposed in this paper. Both BPF and LPF operation utilizes a common geometrical filter section, and individual filter operation is realized by means of the switches operated in “ON” or “OFF” mode. The proposed filter is designed for the dual mode BPF for wireless local area network (5.15–5.35 GHz) application with all four switches in OFF condition and for the LPF at 3 GHz cut‐off frequency with all switches in ON condition. The insertion loss (S21) in the stop band region is below −20 dB extending up to 12 GHz for both the filters. The proposed reconfigurable filter is ultra‐compact having the circuit size of only 5.952 mm × 8 mm = 47.616 mm2. The simulation result is validated experimentally. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:197–201, 2017

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Section: Switchable Bpf–lpfmentioning

confidence: 99%

Section: Switchable Bpf–lpfmentioning

confidence: 99%

Ultra‐compact switchable microstrip band‐pass filter–low‐pass filter with improved characteristics

Singh

Tiwary

Gupta

2016

Micro & Optical Tech Letters

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“…The conventional TRS cell LPF configuration shown in Figure , is designed for 3 dB cut‐off frequency of 2.4 GHz. Using design equations , the obtained dimensional parameters are as θ r = 135˚, r o = 6.5 mm, r i = 0.487 mm, w = 4.84 mm, w v = 0.3 mm, w h = 0.3 mm, l = 5.65 mm, l v = 4.76 mm, l h = 2 mm and s = 0.3 mm.…”

Section: Lpf–bsf Transformationmentioning

confidence: 99%

“…The switching is realized by connecting and disconnecting the conducting pads for ON and OFF state respectively. A conventional transformed radial stub (TRS) cell is used for the proposed work, to achieve wide stop‐band characteristic.…”

Section: Introductionmentioning

confidence: 99%

Design of switchable microstrip low pass‐band stop‐band pass filter

Singh

Tiwary

2016

Micro & Optical Tech Letters

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A novel, compact planar switchable filter having good inband and wide out-of-band characteristic with three switching modes [low-pass filter (LPF), band-stop filter (BSF) and band-pass filter (BPF)] is presented. Reconfigurability in this aspect is never reported in literature. The reconfigurability is achieved by using a minimum of five switches. A very good agreement is shown between the simulated and measured results. The overall circuit size of the proposed switchable filter is only 14 mm 3 16.72 mm.

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Microstrip low-pass filter using modified log periodic radial stub

Cited by 2 publications

References 8 publications

Ultra‐compact switchable microstrip band‐pass filter–low‐pass filter with improved characteristics

Ultra‐compact switchable microstrip band‐pass filter–low‐pass filter with improved characteristics

Design of switchable microstrip low pass‐band stop‐band pass filter

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