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Design considerations for beamwaveguide in the NASA Deep Space Network

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5 Author(s)
T. Veruttipong ; Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA ; J. R. Withington ; V. Galindo-Israel ; W. A. Imbraile
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A generalized solution is found for retrofitting a large dual-shaped reflector antenna for a beamwaveguide. The design is termed as a bypass beamwaveguide. Both highpass design feed imaging and bandpass design feed imaging are considered. Each design was studied using geometrical optics, Gaussian wave analysis, and both low-frequency and high-frequency diffraction analysis. An important extension of the Mizusawa-Kitsuregawa criteria was discovered (M.M. Zusama and T. Kitsuregawa, ibid., vol.AP-21, pp.844-8, Nov. 1973). The principle revealed shows how a two-reflector cell, although in itself distorting, may be combined with a second cell which compensates for the first and delivers an output beam which is a good image of the input beam.<>

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IEEE Transactions on Antennas and Propagation  (Volume:36 ,  Issue: 12 )