Several instruments operating in the microwave and millimeter-wave bands are to be developed over the next several years at JPL or in conjunction with various other companies and laboratories. The design and development of these instruments requires an environment that can produce a microwave or millimeter-wave optics design, and can assess sensitivity of key design criteria (beamwidth, gain, sidelobe levels, etc.) to thermal and mechanical operating environments. An integrated design tool has been developed to carry out the design and analysis using software building blocks from the computer-aided design, thermal, structural and electromagnetic analysis fields. The capability to simultaneously assess the effects of design parameter variation resulting from thermal and structural loads can reduce design and validation cost and generally lead to more optimal designs, hence higher performing instruments. In this paper the development and application of MODTool (Millimeter-wave Optics Design), a design tool that efficiently integrates existing millimeter-wave optics design software with a solid body modeler and with thermal and structural analysis packages is discussed. The design tool is also directly useful over other portions of the spectrum, though thermal or dynamic loads may have less influence on antenna patterns at the longer wavelengths. Under a common interface, interactions between the various components of a design can be efficiently evaluated and optimized. One key component is the use of physical optics analysis software for antenna pattern analysis.
Integrated design and simulation for millimeter-wave antenna systems
2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542) ; 2 ; 2/899-2/907 vol.2
2001-01-01
1450909 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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