Title :
A new deployment mechanism for reflector antennas
Author :
Terada, Marco ; Bludworth, Nicholas ; Moore, James ; Sullivan, James
Author_Institution :
Electr. Eng. Dept., Brasilia Univ., Brazil
Abstract :
A new mechanism for deploying reflector antennas is herein introduced, and its functionality demonstrated for VSAT and satellite TV reception systems. The prototype, herein referred to as DRSAT (deployable reflector for satellite applications), was constructed using sheet aluminum, a fine metal mesh, an existing feed and low noise block, and a directionally adjustable base. The DRSAT design employs a 39-cm offset reflector antenna, which when collapsed occupies less than 0.03 m3. Computer simulations performed with the program PRAC (parabolic reflector analysis code) were conducted to validate the design and assess the impact of surface errors during manufacturing.
Keywords :
aluminium; direct broadcasting by satellite; microwave amplifiers; microwave antennas; offset reflector antennas; receiving antennas; reflector antenna feeds; satellite ground stations; television antennas; DRSAT; PRAC; VSAT; deployable reflector for satellite applications; directionally adjustable base; feed; fine metal mesh; low noise block; manufacturing surface errors; offset reflector antenna; parabolic reflector analysis code; satellite TV reception systems; sheet aluminum; Aluminum; Application software; Computer simulation; Feeds; Performance analysis; Prototypes; Reflector antennas; Satellite antennas; Satellite broadcasting; TV;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552053