A tradeoff study for 60 GHz antenna systems applicable to an advanced Tracking and Data Acquisition System is also discussed. A conceptual design of a preferred antenna system is also discussed. The tradeoff results for four types of antenna systems are presented: (1) Reflector/fixed feed, (2) Mechanical scan, (3) Electronic scan; and (4) Hybrid mechanical/electronic scan. The 12 candidate antennas were assessed on the basis of a preliminary design and a performance analysis then were scored against 15 weighted parameters. This process resulted in the ranking of the 12 candidates for the two applications, namely, for the geostationary TDAS only with a narrow field of view and for low orbit user satellites with a wide field of view
A large multi-function antenna aperture and related components are described which will perform elec...
Design concepts under development utilize two separate spacecraft antenna systems, one uplink at 30 ...
The report contains data on antenna configurations for the low data rate users of the Tracking and D...
Applications of intersatellite links operating at 60 GHz are reviewed. Likely scenarios, ranging fro...
The practicability of a multi-frequency antenna for spaceborne microwave radiometers was considered ...
Far field patterns, element design, and feed systems for electronically steerable antenna system
It is well known that antennas are inevitable for wireless communication systems. After the launch o...
Weight and cost optimized EOS communication links are determined for 2.25, 7.25, 14.5, 21, and 60 GH...
A detailed preliminary design and complete performance evaluation are presented of an 11-channel lar...
A development model antenna positioner mechanism with an integral 60 GHz radio frequency beam wavegu...
Feed systems, antenna couplers and quasi-optical power distribution system for electronically steera...
This thesis is an overview of a number of investigations on antenna systems and related subjects ove...
Current planning calls for the TDAS to support new user and crosslink services, in addition to TDRSS...
Technology development contracts funded by NASA have resulted in five 30 GHz satellite receivers of ...
Series and optical feed systems for satellite-borne electronically steerable antenna syste
A large multi-function antenna aperture and related components are described which will perform elec...
Design concepts under development utilize two separate spacecraft antenna systems, one uplink at 30 ...
The report contains data on antenna configurations for the low data rate users of the Tracking and D...
Applications of intersatellite links operating at 60 GHz are reviewed. Likely scenarios, ranging fro...
The practicability of a multi-frequency antenna for spaceborne microwave radiometers was considered ...
Far field patterns, element design, and feed systems for electronically steerable antenna system
It is well known that antennas are inevitable for wireless communication systems. After the launch o...
Weight and cost optimized EOS communication links are determined for 2.25, 7.25, 14.5, 21, and 60 GH...
A detailed preliminary design and complete performance evaluation are presented of an 11-channel lar...
A development model antenna positioner mechanism with an integral 60 GHz radio frequency beam wavegu...
Feed systems, antenna couplers and quasi-optical power distribution system for electronically steera...
This thesis is an overview of a number of investigations on antenna systems and related subjects ove...
Current planning calls for the TDAS to support new user and crosslink services, in addition to TDRSS...
Technology development contracts funded by NASA have resulted in five 30 GHz satellite receivers of ...
Series and optical feed systems for satellite-borne electronically steerable antenna syste
A large multi-function antenna aperture and related components are described which will perform elec...
Design concepts under development utilize two separate spacecraft antenna systems, one uplink at 30 ...
The report contains data on antenna configurations for the low data rate users of the Tracking and D...