Analysis of beamwaveguide for reflector antenna systems

M. Lumhold; K. Pontoppidan; C.G.M. van 't Klooster

doi:10.1109/APS.2000.874860

Analysis of beamwaveguide for reflector antenna systems

M. Lumhold, K. Pontoppidan, C.G.M. van 't Klooster

Research output: Contribution to conference › Paper › Academic

Abstract

The purpose of the present paper is to describe computational methods for the analysis of a realistic beam waveguide (BWG) at X-band, using physical optics (PO) and the geometrical theory of diffraction (GTD). The results presented illustrate that both PO and GTD are very useful tools for the analysis of even large and complicated reflector antenna systems. The agreement between the methods provides a good check of the validity of the results. Further, GTD gives the user an insight in the actual diffraction processes that are taking place, a feature which is very helpful during the design of the antenna system. The applicability of GTD has been demonstrated at X-band. Since GTD is a high frequency approximation it will be even more valid at Ka-band. This is an important conclusion because the computer time for PO increases with the frequency raised to the power of four and a PO calculation at Ka-band is therefore not practically feasible.

Original language	Dutch
Pages	1898-1901
Number of pages	3
DOIs	https://doi.org/10.1109/APS.2000.874860
Publication status	Published - 26 Jun 2000
Externally published	Yes
Event	IEEE Antenna and Propagation Society International Symposium - Salt Lake City, United States Duration: 16 Jun 2000 → 21 Jun 2000 http://Ieexplore.org

Conference

Conference	IEEE Antenna and Propagation Society International Symposium
Country/Territory	United States
City	Salt Lake City
Period	16/06/00 → 21/06/00
Internet address	http://Ieexplore.org

Access to Document

10.1109/APS.2000.874860

Cite this

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title = "Analysis of beamwaveguide for reflector antenna systems",

abstract = "The purpose of the present paper is to describe computational methods for the analysis of a realistic beam waveguide (BWG) at X-band, using physical optics (PO) and the geometrical theory of diffraction (GTD). The results presented illustrate that both PO and GTD are very useful tools for the analysis of even large and complicated reflector antenna systems. The agreement between the methods provides a good check of the validity of the results. Further, GTD gives the user an insight in the actual diffraction processes that are taking place, a feature which is very helpful during the design of the antenna system. The applicability of GTD has been demonstrated at X-band. Since GTD is a high frequency approximation it will be even more valid at Ka-band. This is an important conclusion because the computer time for PO increases with the frequency raised to the power of four and a PO calculation at Ka-band is therefore not practically feasible.",

author = "M. Lumhold and K. Pontoppidan and {van 't Klooster}, C.G.M.",

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doi = "10.1109/APS.2000.874860",

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T1 - Analysis of beamwaveguide for reflector antenna systems

AU - Lumhold, M.

AU - Pontoppidan, K.

AU - van 't Klooster, C.G.M.

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Y1 - 2000/6/26

N2 - The purpose of the present paper is to describe computational methods for the analysis of a realistic beam waveguide (BWG) at X-band, using physical optics (PO) and the geometrical theory of diffraction (GTD). The results presented illustrate that both PO and GTD are very useful tools for the analysis of even large and complicated reflector antenna systems. The agreement between the methods provides a good check of the validity of the results. Further, GTD gives the user an insight in the actual diffraction processes that are taking place, a feature which is very helpful during the design of the antenna system. The applicability of GTD has been demonstrated at X-band. Since GTD is a high frequency approximation it will be even more valid at Ka-band. This is an important conclusion because the computer time for PO increases with the frequency raised to the power of four and a PO calculation at Ka-band is therefore not practically feasible.

AB - The purpose of the present paper is to describe computational methods for the analysis of a realistic beam waveguide (BWG) at X-band, using physical optics (PO) and the geometrical theory of diffraction (GTD). The results presented illustrate that both PO and GTD are very useful tools for the analysis of even large and complicated reflector antenna systems. The agreement between the methods provides a good check of the validity of the results. Further, GTD gives the user an insight in the actual diffraction processes that are taking place, a feature which is very helpful during the design of the antenna system. The applicability of GTD has been demonstrated at X-band. Since GTD is a high frequency approximation it will be even more valid at Ka-band. This is an important conclusion because the computer time for PO increases with the frequency raised to the power of four and a PO calculation at Ka-band is therefore not practically feasible.

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DO - 10.1109/APS.2000.874860

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