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  • 1
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    Advanced development of microwave antenna subsystems (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: Development of microwave antenna components for deep space instrumentation facility
    Keywords: COMMUNICATIONS
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Advanced development of microwave antenna subsystems - 100-kW SCM cone tests (1966)
    In:  CASI
    Details
    Publication Date: 2006-10-26
    Description: High power testing of S-band Cassegrain monopulse cone antenna
    Keywords: COMMUNICATIONS
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    NASA TECHNICAL REPORTS
  • 3
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    Microwave time delays in the DSN 34- and 64-meter antennas (1979)
    In:  CASI
    Details
    Publication Date: 2006-06-01
    Description: The results and methods used to derive data for the recent changes to the DSN 34- and 64-m stations at both S- and X-band frequencies are presented.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Deep Space Network; p 183-185
    Format: text
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  • 4
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    New X-band microwave equipment at the DSN 64-meter stations (1978)
    In:  CASI
    Details
    Publication Date: 2006-01-12
    Description: The performance and capabilities of the DSN 64 m antennas at X-band are considered including extensive modifications to the XRO cone assemblies. The changes include a feed assembly with a dual hybrid mode horn and orthogonal mode junction, dual traveling wave masers, and receiver mode selector.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Deep Space Network; p 126-128
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Selectable polarization at X-band (1977)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The X-band feeds in the Deep Space Network were upgraded to include selectable polarization in time for the Voyager missions to the outer planets. The modified antenna feed has the following major items added: two circular waveguide rotary joints, drive motor and gear reducer, gear assembly, two microswitches, and a polarization control junction box. The overall length of the feed remains the same because circular waveguide spacing sections were designed into the original feed to readily permit such modifications. There is no significant increase in antenna noise temperature compared to the original feed.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Deep Space Network, Vol. 39; p 177-180
    Format: text
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  • 6
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    Microwave component time delays for the 70-meter antennas (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: The X-band feed assemblies in the 64 meter antennas were redesigned to accommodate the upgrading to 70 meters and the associated surface reshaping. To maintain time delay data logs, new calculations were made of the microwave component delays for the XRO Mod IV X-band (8.4 to 8.45 GHz) feed assembly that was installed at DSS-63, and will soon be implemented at DSS-43 and DSS-14.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Telecommunications and Data Acquisition Report; p 73-76
    Format: application/pdf
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  • 7
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    Compound-taper feedhorn for the DSN 70-meter antennas (1987)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: A novel X-band feedhorn was designed for the Deep Space Network (DSN) 70-meter antennas. The feedhorn is a compound-taper structure consisting of a corrugated flared section and a corrugated straight section. This feedhorn is designed to closely initiate the characteristics of the standard feedhorn, while providing the proper phase center location, without adding any significant loss to the system. The use of the existing feedhorn and the ease of manufacturing the corrugated straight section have resulted in major overall cost savings.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Telecommunications and Data Acquisition Report; p 81-88
    Format: application/pdf
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  • 8
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    Improved cooling design for high power waveguide system (1981)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: Testing of X band high power components in a traveling wave resonator indicates that this improved cooling design reduces temperature in the waveguide and flange. The waveguide power handling capability and power transmission reliability is increased substantially.
    Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING
    Type: The Telecommun. and Data Acquisition Rept.; p 104-107
    Format: text
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  • 9
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    New X-band antenna feeds for the DSN 64-meter stations (1979)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: New X-band antenna feed assemblies with dual-polarization capability are being implemented in the DSN 64-meter stations. Together with dual X-band traveling wave masers, they permit the simultaneous reception of right- and left-hand circular polarization from the Voyager spacecraft. The new feed also includes a dual hybrid mode feedhorn which increases the antenna gain by 0.36 dB over the present feedhorn.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Deep Space Network; p 71-74
    Format: text
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  • 10
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    Radio frequency and microwave subsystems section. Dual-frequency feed cone assemblies for 34-meter antennas (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: New Cassegrain cone assemblies were designed for the upgrade of three 26 meter-diameter antennas to 34 meter-diameter with improved performance. The new dual-frequency feed cone (SXD) provided both S- and X-band feed systems and traveling wave masers with a reflex reflector system to permit simultaneous operation analogous to the 64-meter antennas.
    Keywords: COMMUNICATIONS AND RADAR
    Type: The Deep Space Network; p 85-88
    Format: text
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