Integrated beam-scanning antenna for heterodyne instruments at submillimeter-wave frequencies for Martian climatology measurements
M. Alonso Del Pino (California Institute of Technology)
C. Jung-Kubiak (California Institute of Technology)
Theodore Reck (California Institute of Technology)
N.J. Livesey (California Institute of Technology)
L Tamppari (California Institute of Technology)
Nuria Llombart (TU Delft - Tera-Hertz Sensing)
G. Chattopadhyay (California Institute of Technology)
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Abstract
The aim of this paper is to present an integrated beam-scanning antenna for a submillimeter wave instrument. The ultimate goal is to be able to scan the limb of the Martian surface to measure the wind, temperature and water vapor. The scanning of the limb can be achieved by the mechanical translation of a micro-lens using a piezo-electric motor integrated with the receiver. A prototype has been fabricated and measured at 550 GHz, achieving a scanning loss lower than 0.4 dB for beam angles up to 15 degrees.
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