Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter
This article exhibits the design of a fourth-order compact hairpin-line filter centered at 2.5 GHz and 3 dB fractional bandwidth of 5% along with a sharp roll-off factor and wide stopband characteristics required for Wireless Local Area Network (WLAN). Miniaturization of the conventional hairpin-lin...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Spolecnost pro radioelektronicke inzenyrstvi
2021-06-01
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| Series: | Radioengineering |
| Subjects: | |
| Online Access: | https://www.radioeng.cz/fulltexts/2021/21_02_0296_0303.pdf |
| _version_ | 1818891961204998144 |
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| author | T. K. Das S. Chatterjee |
| author_facet | T. K. Das S. Chatterjee |
| author_sort | T. K. Das |
| collection | DOAJ |
| description | This article exhibits the design of a fourth-order compact hairpin-line filter centered at 2.5 GHz and 3 dB fractional bandwidth of 5% along with a sharp roll-off factor and wide stopband characteristics required for Wireless Local Area Network (WLAN). Miniaturization of the conventional hairpin-line filter has been achieved by folding the open end arms twice towards the inward direction and accordingly, a size reduction of 42% has been obtained. Subsequently, T-shaped spur-lines with optimum dimensions have been incorporated at both the inner and outer edges of the coupled arms of the folded hairpin-line cell. Accordingly, two fourth-order folded filters with outer T-shaped and double T-shaped spur-lines have been designed and verified experimentally. An extended stopband with a rejection level of 39 dB up to 3.2f_0 along with a size reduction of 46% has been achieved. |
| first_indexed | 2024-12-19T17:49:07Z |
| format | Article |
| id | doaj.art-98714a949d574e14bde13fc5b63a8d6d |
| institution | Directory Open Access Journal |
| issn | 1210-2512 |
| language | English |
| last_indexed | 2024-12-19T17:49:07Z |
| publishDate | 2021-06-01 |
| publisher | Spolecnost pro radioelektronicke inzenyrstvi |
| record_format | Article |
| series | Radioengineering |
| spelling | doaj.art-98714a949d574e14bde13fc5b63a8d6d2022-12-21T20:11:58ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122021-06-01302296303Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass FilterT. K. DasS. ChatterjeeThis article exhibits the design of a fourth-order compact hairpin-line filter centered at 2.5 GHz and 3 dB fractional bandwidth of 5% along with a sharp roll-off factor and wide stopband characteristics required for Wireless Local Area Network (WLAN). Miniaturization of the conventional hairpin-line filter has been achieved by folding the open end arms twice towards the inward direction and accordingly, a size reduction of 42% has been obtained. Subsequently, T-shaped spur-lines with optimum dimensions have been incorporated at both the inner and outer edges of the coupled arms of the folded hairpin-line cell. Accordingly, two fourth-order folded filters with outer T-shaped and double T-shaped spur-lines have been designed and verified experimentally. An extended stopband with a rejection level of 39 dB up to 3.2f_0 along with a size reduction of 46% has been achieved.https://www.radioeng.cz/fulltexts/2021/21_02_0296_0303.pdffoldinghairpin-line filtersspur-lineharmonic suppression |
| spellingShingle | T. K. Das S. Chatterjee Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter Radioengineering folding hairpin-line filters spur-line harmonic suppression |
| title | Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter |
| title_full | Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter |
| title_fullStr | Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter |
| title_full_unstemmed | Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter |
| title_short | Harmonic Suppression by Using T-shaped Spur-Line in a Compact Hairpin-Line Bandpass Filter |
| title_sort | harmonic suppression by using t shaped spur line in a compact hairpin line bandpass filter |
| topic | folding hairpin-line filters spur-line harmonic suppression |
| url | https://www.radioeng.cz/fulltexts/2021/21_02_0296_0303.pdf |
| work_keys_str_mv | AT tkdas harmonicsuppressionbyusingtshapedspurlineinacompacthairpinlinebandpassfilter AT schatterjee harmonicsuppressionbyusingtshapedspurlineinacompacthairpinlinebandpassfilter |