Quasistatic Resonators Based Triple-Mode Notched Microstrip Bandpass Filter
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Date
2023-04
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Referee
Mark
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Publisher
Společnost pro radioelektronické inženýrství
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Abstract
This article discusses new approach for design and development of triple-mode notched microstrip bandpass filter based on quasistatic resonators(QR). The proposed approach is composed of two Quasistatic resonant elements; Horizontal plane Split ring resonator (HP-SRR), Vertical plane split ring resonator (VP-SRR) and a single asymmetric step impedance resonator (A-SIR) with parallel coupled feed structure. An additional attenuation pole realized by VP-SRR in desired passband, tunes the dual-mode response to triple mode and enhances the 3dB bandwidth without changing the dimensions of basic the filter cell. The HP-SRR realizes a notch at WiMAX band (IEEE 802.11a lower band) in the desired passband. Further by changing the impedance of VP-SRR and HP-SRR both the location of additional attenuation pole frequency and notch band can be controlled. The proposed approach results in compact, notched wideband, filter design.
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Citation
Radioengineering. 2023 vol. 32, č. 1, s. 74-81. ISSN 1210-2512
https://www.radioeng.cz/fulltexts/2023/23_01_0074_0081.pdf
https://www.radioeng.cz/fulltexts/2023/23_01_0074_0081.pdf
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Peer-reviewed
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Published version
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en