X-band downlink antenna characterised by isoflux gain mask

Kilian, Michael; Hartwanger, Christian; Schinagl-Weis, Andreas; Schneider, Michael

doi:10.23919/gemic.2018.8335018

Cited by 3 publications

(3 citation statements)

References 6 publications

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“…[7][8][9] Horn antennas, on the other hand, have been deployed in a variety of applications to provide isoflux radiation patterns, offering high-power handling ability and sharper cutoff radiation patterns. [10][11][12][13][14][15][16][17] Despite the prevalence of papers on the isoflux horn antenna in the open literature, most of them focus on data downlink antennas operating within the 8000 and 8400 MHz frequency band, with a maximum beam point direction at 50°-65°, and a peak gain in the range of approximately 4-5 dBi for LEO satellites. Regrettably, none of them appear to meet the requirements of the TW-2 mission.…”

Section: Introductionmentioning

confidence: 99%

“…While sufficient radiation elements can lead to better pattern performance, it is accompanied by the hurdle of a complex beamforming network 7–9 . Horn antennas, on the other hand, have been deployed in a variety of applications to provide isoflux radiation patterns, offering high‐power handling ability and sharper cutoff radiation patterns 10–17 . Despite the prevalence of papers on the isoflux horn antenna in the open literature, most of them focus on data downlink antennas operating within the 8000 and 8400 MHz frequency band, with a maximum beam point direction at 50°–65°, and a peak gain in the range of approximately 4–5 dBi for LEO satellites.…”

Section: Introductionmentioning

confidence: 99%

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X‐band dual‐band horn antenna with isoflux pattern for deep‐space applications

Liu,

Lu,

Duan

et al. 2023

Micro & Optical Tech Letters

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In this paper, an X‐band dual‐band dual‐polarized medium‐gain antenna (MGA) is designed for deep‐space satellite applications. The MGA has isoflux radiation patterns in the 7.145–7.19 and 8.40–8.45 GHz frequency bands. The concentric ring horn qualification model named MGA is developed for TIAN WEN‐2 (TW‐2) mission. MGA is fabricated and the measurements are conducted on it and its installation on the deck of the TW‐2 Radiation Mockup (RM). The performance evaluation of MGA and its corresponding RM measurements indicate an axial ratio lower than 4.0 dB and a gain higher than 5.8 dBic on the operational bandwidth at the coverage limit of 40° for all azimuth angles (φ). The calculated and measured data align exceedingly well, confirming that MGA satisfactorily meets the requirements for the forthcoming TW‐2 deep‐space spacecraft.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

X‐band dual‐band horn antenna with isoflux pattern for deep‐space applications

Liu,

Lu,

Duan

et al. 2023

Micro & Optical Tech Letters

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“…Ravanelli uses an open waveguide loaded with quartz and a series of slots across the corrugation walls [11]. Kilian use a small horn input diameter [12]. The antenna size of these last two designs is large.…”

Section: Introductionmentioning

confidence: 99%

Compact Isoflux X-Band Payload Telemetry Antenna With Simultaneous Dual Circular Polarization for LEO Satellite Applications

Arnaud¹,

Dugenet²,

Elis³

et al. 2020

Antennas Wirel. Propag. Lett.

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This paper describes a compact isoflux X-band payload telemetry and data handling antenna with simultaneous dual circular polarization for Low Earth Orbits (LEO) satellite applications. The main objective of this antenna is to use polarization diversity to improve the efficiency of the payload telemetry link. Some solutions have already been proposed to that end, but the studied antenna combines both good electromagnetic performances and compactness. This high power capability waveguide antenna presents an axial ratio (AR) lower than 2.5 dB over the 8.025-8.4 GHz frequency band at the limit of coverage, i.e. 65°, for any azimuth angle (φ). It has been designed, realized and successfully measured.

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