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This paper presents a newly developed slim triple band capable Tx/Rx polariser network in K/Ka-Band covering user and gateway sub-bands e.g. 17.3 GHz–20.2 GHz (downlink), 24.65 GHz–25.25 GHz and 27.5 GHz–30.0 GHz (up-link) for a high throughput satellite (HTS) antenna application. This new broadband feed chain consists of a triple band capable diplexer, a six-port orthogonal mode junction (OMJ), a...
Airbus DS GmbH has developed a Ka-band antenna assembly which offers steerable up- / downlink connections (receive, transmit) for satellites in low earth orbit (LEO). The antenna consists of a dual reflector antenna and a mechanical steering mechanism. The pointing mechanism comprises the steering unit, a standardised azimuth stage and an elevation stage, which is custom-made.
This paper describes the performance and test results achieved for a passive multiple spot beam satellite antenna with overlapping beams in Ka-band. The antenna had been designed, manufactured and tested in the frame of the DLR granted R&D program "Medusa". S-parameter and pattern test results on BFN, feed array and antenna level are presented and compared to the performance predictions.
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