International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Two different types of tracking feeds are currently used in the majority of telemetry
tracking antenna systems when autotrack operation is required. They are of the conical
scanner or of the single channel monopulse family and they employ well known
technologies.
In broadband applications, these feeds all suffer from the same inherent degradation in
efficiency caused by their inability to maintain a constant crossover loss value and by
their failure to properly illuminate the reflector.
In high dynamics situations they can also generate unwanted and sometimes
detrimental modulation whenever on-axis tracking is not maintained.
In addition, currently available versions of the conical scanner are not capable of high
scan rates or of scan rate agility and they are ill-suited for use in tracking systems
based on non-orthogonal axes positioners.
This paper describes a new high efficiency tracking feed system based on proven
conical scanner technology. Its design incorporates features such as variable
crossover, steerable beam, high scan rates, scan rate agility as well as stable reference
coordinate system. In addition to these features, this new feed is also capable of
delivering, in all but one operational category, levels of performance superior to that
achievable to date by any other implementation of the conical scanner or of the single
channel monopulse technology.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/608863 |
| Date | 10 1900 |
| Creators | Richard, Gaetan C. |
| Contributors | DECS, Inc |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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