Expansion of a Y-shaped array antennas for radio astronomy
Observing celestial objects is common in radio astronomy. The Giant Meterwave Radio Telescope (GMRT) is one of the world's latest telescopes of its kind. The aim of this paper is to extend the number of array antennas and optimize configurations by changing the position of antennas for getting...
| Main Authors: | , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
IEEE
2013
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/48227/ http://psasir.upm.edu.my/id/eprint/48227/1/Expansion%20of%20a%20Y-shaped%20array%20antennas%20for%20radio%20astronomy.pdf |
| _version_ | 1848851024921493504 |
|---|---|
| author | Kiehbadroudinezhad, Shahideh Ng, Chee Kyun Noordin, Nor Kamariah |
| author_facet | Kiehbadroudinezhad, Shahideh Ng, Chee Kyun Noordin, Nor Kamariah |
| author_sort | Kiehbadroudinezhad, Shahideh |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Observing celestial objects is common in radio astronomy. The Giant Meterwave Radio Telescope (GMRT) is one of the world's latest telescopes of its kind. The aim of this paper is to extend the number of array antennas and optimize configurations by changing the position of antennas for getting low sidelobes and high u-v plane coverage. Initially, the expansion along three arms configuration was studied and then expanding it to spiral shape. The results show about 98.5 percents less coverage of GMRT without expansion compare to the extended GMRT. The spiral expanded shows ability to cover the u-v plane more than expansion in three arms by sixteen percents. |
| first_indexed | 2025-11-15T10:15:37Z |
| format | Conference or Workshop Item |
| id | upm-48227 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:15:37Z |
| publishDate | 2013 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-482272016-08-04T07:10:10Z http://psasir.upm.edu.my/id/eprint/48227/ Expansion of a Y-shaped array antennas for radio astronomy Kiehbadroudinezhad, Shahideh Ng, Chee Kyun Noordin, Nor Kamariah Observing celestial objects is common in radio astronomy. The Giant Meterwave Radio Telescope (GMRT) is one of the world's latest telescopes of its kind. The aim of this paper is to extend the number of array antennas and optimize configurations by changing the position of antennas for getting low sidelobes and high u-v plane coverage. Initially, the expansion along three arms configuration was studied and then expanding it to spiral shape. The results show about 98.5 percents less coverage of GMRT without expansion compare to the extended GMRT. The spiral expanded shows ability to cover the u-v plane more than expansion in three arms by sixteen percents. IEEE 2013 Conference or Workshop Item PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48227/1/Expansion%20of%20a%20Y-shaped%20array%20antennas%20for%20radio%20astronomy.pdf Kiehbadroudinezhad, Shahideh and Ng, Chee Kyun and Noordin, Nor Kamariah (2013) Expansion of a Y-shaped array antennas for radio astronomy. In: 2013 IEEE International Conference on Space Science and Communication (IconSpace), 1-3 July 2013, Hotel Equatorial Melaka, Malaysia. (pp. 39-44). 10.1109/IconSpace.2013.6599429 |
| spellingShingle | Kiehbadroudinezhad, Shahideh Ng, Chee Kyun Noordin, Nor Kamariah Expansion of a Y-shaped array antennas for radio astronomy |
| title | Expansion of a Y-shaped array antennas for radio astronomy |
| title_full | Expansion of a Y-shaped array antennas for radio astronomy |
| title_fullStr | Expansion of a Y-shaped array antennas for radio astronomy |
| title_full_unstemmed | Expansion of a Y-shaped array antennas for radio astronomy |
| title_short | Expansion of a Y-shaped array antennas for radio astronomy |
| title_sort | expansion of a y-shaped array antennas for radio astronomy |
| url | http://psasir.upm.edu.my/id/eprint/48227/ http://psasir.upm.edu.my/id/eprint/48227/ http://psasir.upm.edu.my/id/eprint/48227/1/Expansion%20of%20a%20Y-shaped%20array%20antennas%20for%20radio%20astronomy.pdf |