Compact ultra‐wideband bandstop filter using capacitive loads
A compact UWB band‐stop filter (BSF) using capacitive loads is proposed. In contrast to its traditional counterparts, this proposed BSF only consists of two capacitors and a short‐ended coupled line (C‐section). By introducing capacitors inside the C‐section and between two ports, respectively, cros...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-09-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/el.2019.1481 |
| _version_ | 1811215938983297024 |
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| author | Baoguang Liu Yun‐Peng Lyu Lei Zhu Chonghu Cheng |
| author_facet | Baoguang Liu Yun‐Peng Lyu Lei Zhu Chonghu Cheng |
| author_sort | Baoguang Liu |
| collection | DOAJ |
| description | A compact UWB band‐stop filter (BSF) using capacitive loads is proposed. In contrast to its traditional counterparts, this proposed BSF only consists of two capacitors and a short‐ended coupled line (C‐section). By introducing capacitors inside the C‐section and between two ports, respectively, cross‐coupling and source/load coupling are introduced to create up to four transmission zeros. Meanwhile, shunt capacitive effect of loaded capacitors can further reduce the length of C‐section. After working principle and design method of this proposed BSF are well‐illustrated, a prototype with 20 dB fractional bandwidth of 110% at 4.24 GHz is finally designed and fabricated. It occupies only 0.45λg × 0.061λg, where λg is the guided wavelength at the centre frequency. |
| first_indexed | 2024-04-12T06:31:52Z |
| format | Article |
| id | doaj.art-cda91909e2b0414eab3e946ae6e03712 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-04-12T06:31:52Z |
| publishDate | 2019-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-cda91909e2b0414eab3e946ae6e037122022-12-22T03:44:00ZengWileyElectronics Letters0013-51941350-911X2019-09-0155181002100410.1049/el.2019.1481Compact ultra‐wideband bandstop filter using capacitive loadsBaoguang Liu0Yun‐Peng Lyu1Lei Zhu2Chonghu Cheng3School of Electronic and Optical EngineeringNanjing University of Posts and TelecommunicationsNanjing210003People's Republic of ChinaSchool of Telecommunications and Information EngineeringNanjing University of Posts and TelecommunicationsNanjing210003People's Republic of ChinaDepartment of Electrical and Computer Engineering, Faculty of Science and TechnologyUniversity of MacauMacau SARPeople's Republic of ChinaSchool of Electronic and Optical EngineeringNanjing University of Posts and TelecommunicationsNanjing210003People's Republic of ChinaA compact UWB band‐stop filter (BSF) using capacitive loads is proposed. In contrast to its traditional counterparts, this proposed BSF only consists of two capacitors and a short‐ended coupled line (C‐section). By introducing capacitors inside the C‐section and between two ports, respectively, cross‐coupling and source/load coupling are introduced to create up to four transmission zeros. Meanwhile, shunt capacitive effect of loaded capacitors can further reduce the length of C‐section. After working principle and design method of this proposed BSF are well‐illustrated, a prototype with 20 dB fractional bandwidth of 110% at 4.24 GHz is finally designed and fabricated. It occupies only 0.45λg × 0.061λg, where λg is the guided wavelength at the centre frequency.https://doi.org/10.1049/el.2019.1481compact UWB band‐stop filtercapacitive loadsC‐sectioncross‐couplingloaded capacitorscompact UWB BSF |
| spellingShingle | Baoguang Liu Yun‐Peng Lyu Lei Zhu Chonghu Cheng Compact ultra‐wideband bandstop filter using capacitive loads Electronics Letters compact UWB band‐stop filter capacitive loads C‐section cross‐coupling loaded capacitors compact UWB BSF |
| title | Compact ultra‐wideband bandstop filter using capacitive loads |
| title_full | Compact ultra‐wideband bandstop filter using capacitive loads |
| title_fullStr | Compact ultra‐wideband bandstop filter using capacitive loads |
| title_full_unstemmed | Compact ultra‐wideband bandstop filter using capacitive loads |
| title_short | Compact ultra‐wideband bandstop filter using capacitive loads |
| title_sort | compact ultra wideband bandstop filter using capacitive loads |
| topic | compact UWB band‐stop filter capacitive loads C‐section cross‐coupling loaded capacitors compact UWB BSF |
| url | https://doi.org/10.1049/el.2019.1481 |
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