High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure
A microstrip low-pass filter (LPF) using reformative stepped impedance resonator (SIR) and defected ground structure (DGS) is proposed in this paper. The proposed filter not only possesses the advantage of high frequency selectivity of SIR hairpin LPF with internal coupling, but also possesses the l...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/8/4/403 |
| _version_ | 1798027045922406400 |
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| author | Jin Zhang Ruosong Yang Chen Zhang |
| author_facet | Jin Zhang Ruosong Yang Chen Zhang |
| author_sort | Jin Zhang |
| collection | DOAJ |
| description | A microstrip low-pass filter (LPF) using reformative stepped impedance resonator (SIR) and defected ground structure (DGS) is proposed in this paper. The proposed filter not only possesses the advantage of high frequency selectivity of SIR hairpin LPF with internal coupling, but also possesses the large stop-band (SB) bandwidth by adjusting the number and area of DGS units. The LPF proposed in this paper possesses the properties of miniaturization, wide SB, high selectivity, and low pass-band ripple (PBR) simultaneously. The characteristic parameters of the proposed LPF is that: the pass-band (PB) is 0~2 GHz, the PBR is 0.5 dB, the SB range is from 2.4 GHz to 9 GHz when the attenuation is under 20 dB, and the maximal attenuation could reach 45 dB in the SB. The size of this proposed LPF is 0.13<inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula> <inline-formula> <math display="inline"> <semantics> <mo>×</mo> </semantics> </math> </inline-formula> 0.09<inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula>; <inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula> is the corresponding wavelength of the upper PB edge frequency of 2 GHz. |
| first_indexed | 2024-04-11T18:45:01Z |
| format | Article |
| id | doaj.art-3b52994e577e444d8edec87ef9f124a6 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-04-11T18:45:01Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-3b52994e577e444d8edec87ef9f124a62022-12-22T04:08:50ZengMDPI AGElectronics2079-92922019-04-018440310.3390/electronics8040403electronics8040403High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground StructureJin Zhang0Ruosong Yang1Chen Zhang2School of Electronic and Information Engineering, Jinling Institute of Technology, Nanjing 211169, ChinaNational and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology, Nanjing 210023, ChinaNational and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology, Nanjing 210023, ChinaA microstrip low-pass filter (LPF) using reformative stepped impedance resonator (SIR) and defected ground structure (DGS) is proposed in this paper. The proposed filter not only possesses the advantage of high frequency selectivity of SIR hairpin LPF with internal coupling, but also possesses the large stop-band (SB) bandwidth by adjusting the number and area of DGS units. The LPF proposed in this paper possesses the properties of miniaturization, wide SB, high selectivity, and low pass-band ripple (PBR) simultaneously. The characteristic parameters of the proposed LPF is that: the pass-band (PB) is 0~2 GHz, the PBR is 0.5 dB, the SB range is from 2.4 GHz to 9 GHz when the attenuation is under 20 dB, and the maximal attenuation could reach 45 dB in the SB. The size of this proposed LPF is 0.13<inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula> <inline-formula> <math display="inline"> <semantics> <mo>×</mo> </semantics> </math> </inline-formula> 0.09<inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula>; <inline-formula> <math display="inline"> <semantics> <mi>λ</mi> </semantics> </math> </inline-formula> is the corresponding wavelength of the upper PB edge frequency of 2 GHz.https://www.mdpi.com/2079-9292/8/4/403low-pass filter (LPF)stepped impedance resonator (SIR)hairpin resonatorinternal couplingdefected ground structure (DGS) |
| spellingShingle | Jin Zhang Ruosong Yang Chen Zhang High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure Electronics low-pass filter (LPF) stepped impedance resonator (SIR) hairpin resonator internal coupling defected ground structure (DGS) |
| title | High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure |
| title_full | High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure |
| title_fullStr | High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure |
| title_full_unstemmed | High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure |
| title_short | High-Performance Low-Pass Filter Using Stepped Impedance Resonator and Defected Ground Structure |
| title_sort | high performance low pass filter using stepped impedance resonator and defected ground structure |
| topic | low-pass filter (LPF) stepped impedance resonator (SIR) hairpin resonator internal coupling defected ground structure (DGS) |
| url | https://www.mdpi.com/2079-9292/8/4/403 |
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