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- W4281386998 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 <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$136times 136 text{mm}$</tex> 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." @default.
- W4281386998 created "2022-05-25" @default.
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- W4281386998 date "2022-03-27" @default.
- W4281386998 modified "2023-10-14" @default.
- W4281386998 title "Circularly Polarized Shared Aperture Reflectarray and Patch Antenna Array for S- and Ka-Band" @default.
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- W4281386998 doi "https://doi.org/10.23919/eucap53622.2022.9769457" @default.
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