Abstract
This paper presents a circularly polarized dual-band shared aperture antenna for satellite applications. The antenna achieves dual S- and Ka-band operation by housing both a circularly polarized high-frequency reflectarray and a circularly polarized low-frequency patch antenna array in the same aperture area. The high-frequency reflectarray part of the antenna has unit elements within the aperture area of the low-frequency patch antenna array which allows for a high realized high-frequency gain. The antenna has a layered structure with a middle layer of Polypropylene, this enables the low-frequency part of the antenna to achieve a wide impedance bandwidth and a high realized gain. The antenna has a total size of 136×136 mm and the three layers of the reflective surface have a total height of 4.624 mm. The antenna has an impedance bandwidth of more than 415 MHz (12%) and 4.75 GHz (19%) and a peak realized gain of 14.80 dBi and 26.68 dBi at 3.5 GHz and 25.4 GHz, respectively.
| Original language | English |
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| Title of host publication | 2022 16th European Conference on Antennas and Propagation (EuCAP) |
| Number of pages | 4 |
| Publisher | IEEE (Institute of Electrical and Electronics Engineers) |
| Publication date | Mar 2022 |
| Article number | 9769457 |
| ISBN (Print) | 978-1-6654-1604-7 |
| ISBN (Electronic) | 978-88-31299-04-6 |
| DOIs | |
| Publication status | Published - Mar 2022 |
| Event | 16th European Conference on Antennas and Propagation, EuCAP 2022 - Madrid, Spain Duration: 27 Mar 2022 → 1 Apr 2022 |
Conference
| Conference | 16th European Conference on Antennas and Propagation, EuCAP 2022 |
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| Country/Territory | Spain |
| City | Madrid |
| Period | 27/03/2022 → 01/04/2022 |