TY  - JOUR
T1  - An investigation on installed performances of VHF and UHF turnstile antennas on 3U CubeSat platforms
TT  - 3U küp uydu platformlarında VHF ve UHF turnike antenlerinin kurulu performansları üzerine bir inceleme
AU  - Kiriş, Orçun
PY  - 2025
DA  - July
Y2  - 2025
DO  - 10.28948/ngumuh.1659981
JF  - Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi
JO  - NÖHÜ Müh. Bilim. Derg.
PB  - Niğde Ömer Halisdemir Üniversitesi
WT  - DergiPark
SN  - 2564-6605
SP  - 827
EP  - 836
VL  - 14
IS  - 3
LA  - en
AB  - In this article, operational performance variations of VHF and UHF turnstile antennas widely utilized in Cube Satellites (CubeSats) are investigated according to their placement positions on 3U size platforms. Considering the utilizable space constraints in CubeSats and the volume of the orbital deployer case, a platform-integrated deployable turnstile antenna concept is applied for VHF and UHF antennas designed at 145 MHz and 435 MHz, respectively. The performances of conceptual deployable turnstile antenna designs are optimized by placing them separately in the central and edge regions of the 3U CubeSat platform. Then, their performances in the scenarios of joint use on the same platform are also investigated. The obtained results show that while the location of the antennas does not significantly affect the performances in individual placements, the performance of the UHF antenna is substantially increased in the central placement where VHF and UHF are installed on the same platform.
KW  - CubeSat
KW  - Installed performance
KW  - Interaction analysis
KW  - Turnstile antenna
KW  - VHF antenna
KW  - UHF antenna
N2  - Bu makalede, küp uydularda yaygın olarak kullanılan VHF ve UHF turnike antenlerinin 3U boyutundaki platformlarına yerleşim konumlarına göre operasyonel performans değişimleri incelenmiştir. Küp uydulardaki kullanılabilir alan kısıtlamaları ve yörüngesel dağıtıcı kasasının hacmi göz önünde bulundurularak, sırasıyla 145 MHz ve 435 MHz'de tasarlanan VHF ve UHF antenler için platforma entegre konuşlandırılabilir turnike anten konsepti uygulanmıştır. Kavramsal dağıtılabilir turnike anten tasarımlarının performansları, 3U küp uydu platformunun merkez ve kenar bölgelerine ayrı ayrı yerleştirilerek optimize edilmiştir. Daha sonra, aynı platformda birlikte kullanım senaryosundaki performansları da incelenmiştir. Elde edilen sonuçlar, antenlerin yerleşiminin tek tek yerleşimlerde performansları önemli ölçüde etkilemediğini, ancak VHF ve UHF'nin aynı platforma yerleştirildiği merkezi yerleşimde UHF anteninin performansının önemli ölçüde arttığını göstermektedir.
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UR  - https://doi.org/10.28948/ngumuh.1659981
L1  - https://dergipark.org.tr/tr/download/article-file/4700056
ER  -