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2013•International Journal of ElectronicsRequires access

Microstrip lowpass filter with ultra-wide stopband using triangular shaped CMRC

Mohsen Hayati, Maryam Shahbazi Tabar

Open publisher page 7 citations

Abstract

In this paper, a microstrip lowpass filter with ultra-wide stopband is proposed. To achieve a wide stopband, the semicircle stepped impedance is connected in series with the triangular shaped compact microstrip resonance cell (CMRC). The lowpass filter with 3 dB cut-off frequency at 2.38 GHz and stopband region with the attenuation level better than –21 dB from 2.7 to 23 GHz has been designed, fabricated and measured. The filter has the transition band of 0.45 GHz. There is a good agreement between the simulated and measured results.

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What this paper is about

In this paper, a microstrip lowpass filter with ultra-wide stopband is proposed. To achieve a wide stopband, the semicircle stepped impedance is connected in series with the triangular shaped compact microstrip resonance cell (CMRC). The lowpass filter with 3 dB cut-off frequency at 2.38 GHz and stopband region with the attenuation level better than –21 dB from 2.7 to 23 GHz has been designed, fabricated and measured. The filter has the transition band of 0.45 GHz. There is a good agreement between the simulated and measured results.

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OpenAlex reports 7 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

In this paper, a microstrip lowpass filter with ultra-wide stopband is proposed. To achieve a wide stopband, the semicircle stepped impedance is connected in series with the triangular shaped compact microstrip resonance cell (CMRC). The lowpass filter with 3 dB cut-off frequency at 2.38 GHz and stopband region with the attenuation level better than –21 dB from 2.7 to 23 GHz has been designed, fabricated and measured. The filter has the transition band of 0.45 GHz. There is a good agreement between the simulated and measured results.

Key concepts: Stopband, Transition band, Low-pass filter, Microstrip, Elliptic filter, Band-stop filter, Filter (signal processing), Materials science

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