Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer
A simulation for the design of a 90o differential phase shifter aimed toward Korean VLBI Network (KVN) 129 GHz band polarizer is described in this paper. A dual-circular polarizer for KVN 129 GHz band consists of a 90o differential phase shifter and an orthomode transducer. The differential phase...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Space Science Society
2010-09-01
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| Series: | Journal of Astronomy and Space Sciences |
| Subjects: | |
| Online Access: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2010/v27n3/OJOOBS_2010_v27n3_239.pdf |
| _version_ | 1827363225053691904 |
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| author | Moon-Hee Chung Do-Heung Je Seog-Tae Han Sooyeon Kim |
| author_facet | Moon-Hee Chung Do-Heung Je Seog-Tae Han Sooyeon Kim |
| author_sort | Moon-Hee Chung |
| collection | DOAJ |
| description | A simulation for the design of a 90o differential phase shifter aimed toward Korean VLBI Network (KVN) 129 GHz band
polarizer is described in this paper. A dual-circular polarizer for KVN 129 GHz band consists of a 90o differential phase
shifter and an orthomode transducer. The differential phase shifter is made up of a square waveguide with two opposite
walls loaded with corrugations. Three-dimensional electromagnetic simulation has been performed to predict the 90o
differential phase shifter’s characteristics. The simulation for the differential phase shifter shows that the phase shift is
90o ± 3.3o across 108-160 GHz and the return losses of two orthogonal modes are better than -30 dB within the design
frequency band. According to the simulation results the calculated performance is quite encouraging for KVN 129 GHz
band application. |
| first_indexed | 2024-03-08T07:44:02Z |
| format | Article |
| id | doaj.art-6e83dd4563a143a4b39b39ae5f8004aa |
| institution | Directory Open Access Journal |
| issn | 2093-5587 2093-1409 |
| language | English |
| last_indexed | 2024-03-08T07:44:02Z |
| publishDate | 2010-09-01 |
| publisher | The Korean Space Science Society |
| record_format | Article |
| series | Journal of Astronomy and Space Sciences |
| spelling | doaj.art-6e83dd4563a143a4b39b39ae5f8004aa2024-02-02T16:33:53ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092010-09-0127323924410.5140/JASS.2010.27.3.239Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band PolarizerMoon-Hee Chung0Do-Heung Je1Seog-Tae Han2Sooyeon Kim3Korea Astronomy and Space Science Institute, Daejon 305-348, KoreaKorea Astronomy and Space Science Institute, Daejon 305-348, KoreaKorea Astronomy and Space Science Institute, Daejon 305-348, KoreaKorea Astronomy and Space Science Institute, Daejon 305-348, KoreaA simulation for the design of a 90o differential phase shifter aimed toward Korean VLBI Network (KVN) 129 GHz band polarizer is described in this paper. A dual-circular polarizer for KVN 129 GHz band consists of a 90o differential phase shifter and an orthomode transducer. The differential phase shifter is made up of a square waveguide with two opposite walls loaded with corrugations. Three-dimensional electromagnetic simulation has been performed to predict the 90o differential phase shifter’s characteristics. The simulation for the differential phase shifter shows that the phase shift is 90o ± 3.3o across 108-160 GHz and the return losses of two orthogonal modes are better than -30 dB within the design frequency band. According to the simulation results the calculated performance is quite encouraging for KVN 129 GHz band application.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2010/v27n3/OJOOBS_2010_v27n3_239.pdfdual-circular polarizerdifferential phase shiftercorrugated waveguidemillimeter waveguide circuitsradio astronomy receiver system |
| spellingShingle | Moon-Hee Chung Do-Heung Je Seog-Tae Han Sooyeon Kim Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer Journal of Astronomy and Space Sciences dual-circular polarizer differential phase shifter corrugated waveguide millimeter waveguide circuits radio astronomy receiver system |
| title | Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer |
| title_full | Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer |
| title_fullStr | Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer |
| title_full_unstemmed | Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer |
| title_short | Simulation of A 90o Differential Phase Shifter for Korean VLBI Network 129 GHz Band Polarizer |
| title_sort | simulation of a 90o differential phase shifter for korean vlbi network 129 ghz band polarizer |
| topic | dual-circular polarizer differential phase shifter corrugated waveguide millimeter waveguide circuits radio astronomy receiver system |
| url | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2010/v27n3/OJOOBS_2010_v27n3_239.pdf |
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