Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs
This paper presented a theoretical and numerical assessment for nonidentical segmented exponential- (NISE-) convex and NISE-concave serrated plane CATRs by changing number of serrations. The investigation was based on diffraction theory and, more specifically, on the diffraction formulation of Fres...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2008/756060 |
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| author | T. Venkata Rama Krishna P. Siddaiah B. Prabhakara Rao |
| author_facet | T. Venkata Rama Krishna P. Siddaiah B. Prabhakara Rao |
| author_sort | T. Venkata Rama Krishna |
| collection | DOAJ |
| description | This paper presented a theoretical and numerical assessment for nonidentical segmented exponential- (NISE-) convex and NISE-concave serrated plane CATRs by changing number of serrations. The investigation was based on diffraction theory and, more specifically, on the diffraction formulation of Fresnel. The compact antenna test range (CATR) provides uniform illumination within the Fresnel region to the test antenna. Application of serrated edges has been shown to be a good method to control diffraction at the edges of the reflectors. In this paper, the Fresnel fields of NISE-convex and NISE-concave serrated CATRs are analyzed using physical optics (PO) technique. The PO analysis is applied in this paper for plane reflector serrated CATR only. The same analysis is applied to any type of reflector. In this paper, lens-based reflector is not considered. It is observed that NISE-concave serrated CATR gives less ripple and enhanced quiet zone width than NISE-convex. |
| format | Article |
| id | doaj-art-30352e1734d3454fa1c40800591e4d3f |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-30352e1734d3454fa1c40800591e4d3f2025-02-03T06:42:15ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772008-01-01200810.1155/2008/756060756060Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRsT. Venkata Rama Krishna0P. Siddaiah1B. Prabhakara Rao2Koneru Lakshmaiah College of Engineering, Vaddeswaram, Guntur District, Andhra Pradesh 522-501, IndiaKoneru Lakshmaiah College of Engineering, Vaddeswaram, Guntur District, Andhra Pradesh 522-501, IndiaCollege of Engineering, Jawaharlal Nehru Technological University (JNTU), Kakinada, Andhra Pradesh 533-033, IndiaThis paper presented a theoretical and numerical assessment for nonidentical segmented exponential- (NISE-) convex and NISE-concave serrated plane CATRs by changing number of serrations. The investigation was based on diffraction theory and, more specifically, on the diffraction formulation of Fresnel. The compact antenna test range (CATR) provides uniform illumination within the Fresnel region to the test antenna. Application of serrated edges has been shown to be a good method to control diffraction at the edges of the reflectors. In this paper, the Fresnel fields of NISE-convex and NISE-concave serrated CATRs are analyzed using physical optics (PO) technique. The PO analysis is applied in this paper for plane reflector serrated CATR only. The same analysis is applied to any type of reflector. In this paper, lens-based reflector is not considered. It is observed that NISE-concave serrated CATR gives less ripple and enhanced quiet zone width than NISE-convex.http://dx.doi.org/10.1155/2008/756060 |
| spellingShingle | T. Venkata Rama Krishna P. Siddaiah B. Prabhakara Rao Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs International Journal of Antennas and Propagation |
| title | Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs |
| title_full | Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs |
| title_fullStr | Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs |
| title_full_unstemmed | Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs |
| title_short | Performance Comparison between Nonidentical Segmented Exponential Concave and Nonidentical Segmented Exponential Convex Serrated CATRs |
| title_sort | performance comparison between nonidentical segmented exponential concave and nonidentical segmented exponential convex serrated catrs |
| url | http://dx.doi.org/10.1155/2008/756060 |
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