Title :
A microwave performance calibration system for NASA´s Deep Space Network antennas .2. Holography, alignment, and frequency stability
Author :
Rochblatt, D.J. ; Richter, P.H. ; Otoshi, T.Y.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The NASA JPL Deep Space Network (DSN) of large, Earth-based, dual reflector antennas is subject to continuing demands for improved signal reception sensitivity, and increased transmitted power, dynamic range, navigational accuracy, and frequency stability. The present paper describes the specifications of the system with an emphasis on its narrow-bandwidth applications, which include the main reflector panel adjustment and subreflector alignment by means of microwave holography, and antenna frequency stability measurements. Some data acquired data from three newly built 34-m beamwaveguide (BWG) antennas are presented and discussed
Keywords :
satellite antennas; 17 m; Deep Space Network antennas; Earth based antennas; NASA; antenna frequency stability measurements; beamwaveguide antennas; dual reflector antennas; dynamic range; main reflector panel adjustment; microwave holography; microwave performance calibration system; narrow bandwidth applications; navigational accuracy; signal reception sensitivity; subreflector alignment; transmitted power;
Conference_Titel :
Antennas and Propagation, Tenth International Conference on (Conf. Publ. No. 436)
Conference_Location :
Edinburgh
Print_ISBN :
0-85296-686-5
DOI :
10.1049/cp:19970227
