A clover-shaped circularly polarised antenna for satellite systems
The global navigation satellite systems (GNSSs) have been used in many areas such as navigation, positioning, public safety, surveillance, geographic surveys, time standards, mapping, weather, and atmospheric information. The GNSS is a constellation of over 100 satellites mainly composed of Medium E...
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| Format: | Thesis-Master by Coursework |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/143064 |
| _version_ | 1811687243091279872 |
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| author | Rajagopal, Divya |
| author2 | Arokiaswami Alphones |
| author_facet | Arokiaswami Alphones Rajagopal, Divya |
| author_sort | Rajagopal, Divya |
| collection | NTU |
| description | The global navigation satellite systems (GNSSs) have been used in many areas such as navigation, positioning, public safety, surveillance, geographic surveys, time standards, mapping, weather, and atmospheric information. The GNSS is a constellation of over 100 satellites mainly composed of Medium Earth Orbit (MEO's) satellites including GPS, Galileo, GLONASS and Compass. Additionally, the constellation is augmented by Geostationary Orbit (GEO) satellites from Compass and QZSS. To cover entire GNSS band, wideband or dual band circularly polarized antennas are required.
A Circularly Polarised antenna with a Medium Bandwidth is presented. The designed antenna is said to exhibit an axial ratio less than 3dB within the GNSS band of frequency. The antenna is single fed and consists of Crescent shaped slots on the patch to improve the Gain, Return loss and Axial Ratio.
The circularly polarized antennas are able to offer a reliable system connection because the polarization of the antennas is always aligned. The satellites, space vehicles, and mobile vehicles require a circularly antenna to maintain a communication link with a receiver system. |
| first_indexed | 2024-10-01T05:13:13Z |
| format | Thesis-Master by Coursework |
| id | ntu-10356/143064 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:13:13Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1430642023-07-04T16:53:59Z A clover-shaped circularly polarised antenna for satellite systems Rajagopal, Divya Arokiaswami Alphones School of Electrical and Electronic Engineering Institute for Infocomm Research, Agency for Science, Technology and Research (I2R, A*STAR) EAlphones@ntu.edu.sg Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio Engineering::Electrical and electronic engineering::Satellite telecommunication The global navigation satellite systems (GNSSs) have been used in many areas such as navigation, positioning, public safety, surveillance, geographic surveys, time standards, mapping, weather, and atmospheric information. The GNSS is a constellation of over 100 satellites mainly composed of Medium Earth Orbit (MEO's) satellites including GPS, Galileo, GLONASS and Compass. Additionally, the constellation is augmented by Geostationary Orbit (GEO) satellites from Compass and QZSS. To cover entire GNSS band, wideband or dual band circularly polarized antennas are required. A Circularly Polarised antenna with a Medium Bandwidth is presented. The designed antenna is said to exhibit an axial ratio less than 3dB within the GNSS band of frequency. The antenna is single fed and consists of Crescent shaped slots on the patch to improve the Gain, Return loss and Axial Ratio. The circularly polarized antennas are able to offer a reliable system connection because the polarization of the antennas is always aligned. The satellites, space vehicles, and mobile vehicles require a circularly antenna to maintain a communication link with a receiver system. Master of Science (Communications Engineering) 2020-07-27T08:24:02Z 2020-07-27T08:24:02Z 2020 Thesis-Master by Coursework https://hdl.handle.net/10356/143064 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio Engineering::Electrical and electronic engineering::Satellite telecommunication Rajagopal, Divya A clover-shaped circularly polarised antenna for satellite systems |
| title | A clover-shaped circularly polarised antenna for satellite systems |
| title_full | A clover-shaped circularly polarised antenna for satellite systems |
| title_fullStr | A clover-shaped circularly polarised antenna for satellite systems |
| title_full_unstemmed | A clover-shaped circularly polarised antenna for satellite systems |
| title_short | A clover-shaped circularly polarised antenna for satellite systems |
| title_sort | clover shaped circularly polarised antenna for satellite systems |
| topic | Engineering::Electrical and electronic engineering::Antennas, wave guides, microwaves, radar, radio Engineering::Electrical and electronic engineering::Satellite telecommunication |
| url | https://hdl.handle.net/10356/143064 |
| work_keys_str_mv | AT rajagopaldivya aclovershapedcircularlypolarisedantennaforsatellitesystems AT rajagopaldivya clovershapedcircularlypolarisedantennaforsatellitesystems |