A summary of the architecture, essential sub-units and components, and measured results of a X-Band Transmit/Receive (T/R) module capable to operate in two orthogonal polarisations, alternatively, is presented. The available output power over the operating bandwidth is 4 W and the overall noise figure less than 3.9 dB. The magnitude of the RF signal is controlled by a variable gain amplifier (VGA) with more than 30 dB dynamic range. For phase setting a 6-bit phase shifter is implemented. The module realised with state-of-the-art technology is based on GaAs microwave monolithic integrated circuits (MMIC), monolithic silicon control devices (e.g. ASIC), and a multilayer substrate. These technologies have led to a T/R module with minimum size (70 mm x 30 mm x 20 mm) and low weight of only 67 g. An outlook to advanced components and technologies for high sophisticated T/R modules completes the paper.
A miniaturised X-band T/R module for SAR-systems based on active phased array techniques
Ein miniaturisierter T/R-Modul für SAR-Systeme im X-Band für aktive phasengesteuerte Techniken
1996
4 Seiten, 4 Bilder, 1 Tabelle, 4 Quellen
Aufsatz (Konferenz)
Englisch
X-Band , synthetische Apertur , Radarantenne , integrierte Mikrowellenschaltung , Signal-Rausch-Abstand , Phasenschieber , Galliumarsenid , Miniaturisierung , Sende-Empfangs-Gerät , phasengesteuerte Strahlergruppe , Raumfahrttechnik , Leistungsbewertung , Phasensteuerung , Kunststoffgehäuse , aktive Antenne
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