A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression
A dual-band branch-line coupler with ultra-wideband harmonic suppression is proposed in this paper. The conventional quarter-wavelength transmission lines are replaced with π-shaped lines to achieve a dual band. In addition, ultra-wideband harmonic suppression is obtained by the frequency-selecting...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Institute of Electromagnetic Engineering and Science
2023-01-01
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| Series: | Journal of Electromagnetic Engineering and Science |
| Subjects: | |
| Online Access: | https://jees.kr/upload/pdf/jees-2023-1-r-144.pdf |
| _version_ | 1827965326044692480 |
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| author | Xiao-Yu Zhang Jong-Chul Lee |
| author_facet | Xiao-Yu Zhang Jong-Chul Lee |
| author_sort | Xiao-Yu Zhang |
| collection | DOAJ |
| description | A dual-band branch-line coupler with ultra-wideband harmonic suppression is proposed in this paper. The conventional quarter-wavelength transmission lines are replaced with π-shaped lines to achieve a dual band. In addition, ultra-wideband harmonic suppression is obtained by the frequency-selecting coupling structure (FSCS) providing three transmission zeros. The two operating frequencies are 0.9 GHz and 2.0 GHz, and the corresponding −10 dB bandwidth at 0.9 GHz and 2.0 GHz is 18.9% and 10.5%, respectively. A wide harmonic suppression band is generated from 3.7 GHz to 8.3 GHz. The simulation and measurement results are in good agreement. |
| first_indexed | 2024-04-09T17:31:15Z |
| format | Article |
| id | doaj.art-406bfb6ac90d4d1b8251c5adb7a996a8 |
| institution | Directory Open Access Journal |
| issn | 2671-7255 2671-7263 |
| language | English |
| last_indexed | 2024-04-09T17:31:15Z |
| publishDate | 2023-01-01 |
| publisher | The Korean Institute of Electromagnetic Engineering and Science |
| record_format | Article |
| series | Journal of Electromagnetic Engineering and Science |
| spelling | doaj.art-406bfb6ac90d4d1b8251c5adb7a996a82023-04-18T04:12:49ZengThe Korean Institute of Electromagnetic Engineering and ScienceJournal of Electromagnetic Engineering and Science2671-72552671-72632023-01-01231576210.26866/jees.2023.1.r.1443569A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic SuppressionXiao-Yu Zhang0Jong-Chul Lee1Department of Electronic Convergence Engineering, Kwangwoon University, Seoul, KoreaDepartment of Electronic Convergence Engineering, Kwangwoon University, Seoul, KoreaA dual-band branch-line coupler with ultra-wideband harmonic suppression is proposed in this paper. The conventional quarter-wavelength transmission lines are replaced with π-shaped lines to achieve a dual band. In addition, ultra-wideband harmonic suppression is obtained by the frequency-selecting coupling structure (FSCS) providing three transmission zeros. The two operating frequencies are 0.9 GHz and 2.0 GHz, and the corresponding −10 dB bandwidth at 0.9 GHz and 2.0 GHz is 18.9% and 10.5%, respectively. A wide harmonic suppression band is generated from 3.7 GHz to 8.3 GHz. The simulation and measurement results are in good agreement.https://jees.kr/upload/pdf/jees-2023-1-r-144.pdfbranch-line couplerdual bandπ-shapedfscsharmonic suppression |
| spellingShingle | Xiao-Yu Zhang Jong-Chul Lee A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression Journal of Electromagnetic Engineering and Science branch-line coupler dual band π-shaped fscs harmonic suppression |
| title | A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression |
| title_full | A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression |
| title_fullStr | A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression |
| title_full_unstemmed | A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression |
| title_short | A Dual-Band Branch-Line Coupler with Ultra-Wideband Harmonic Suppression |
| title_sort | dual band branch line coupler with ultra wideband harmonic suppression |
| topic | branch-line coupler dual band π-shaped fscs harmonic suppression |
| url | https://jees.kr/upload/pdf/jees-2023-1-r-144.pdf |
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