Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques.
Corrugated horn antennas are frequently used as the feed elements in reflector antennas for satellite and deep space communications. A particular application is the multi-frequency feed horns for the reflector antennas of the JPL/NASA Deep Space Network (DSN). In this application, it is desirable to...
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2004
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. Jamnejad, Vahraz. Hoorfar, Ahmad. Corrugated horn antennas are frequently used as the feed elements in reflector antennas for satellite and deep space communications. A particular application is the multi-frequency feed horns for the reflector antennas of the JPL/NASA Deep Space Network (DSN). In this application, it is desirable to design a horn that has a nearly perfect circularly symmetric pattern (i.e., identical E- and H-plane patterns), with zero or low cross-polarization, a specified beam width, and a low return loss at the design frequency range. A parametric study of the corrugated horns, however, shows that the objective function relating the pattern shape, beam width and return loss is a nonlinear function of the corrugation dimensions with many local optima. As a result one has to resort to global optimization techniques, such as evolutionary algorithms, for successful design of such antennas. Here, an evolutionary programming (EP) algorithm is used to optimize the pattern of a corrugated circular horn subject to various constraints on return loss, antenna beam width, pattern circularity, and low cross-polarization. Examples of design synthesis for a few corrugated horns are presented. The results show excellent and efficient optimization of the desired horn parameters. 2004 Villanova Faculty Authorship vudl:176962 IEEE Antennas and Wireless Propagation Letters 3, 2004, 276-279. en |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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Jamnejad, Vahraz. Hoorfar, Ahmad. |
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Corrugated horn antennas are frequently used as the
feed elements in reflector antennas for satellite and deep space
communications. A particular application is the multi-frequency
feed horns for the reflector antennas of the JPL/NASA Deep Space
Network (DSN). In this application, it is desirable to design a
horn that has a nearly perfect circularly symmetric pattern (i.e.,
identical E- and H-plane patterns), with zero or low cross-polarization,
a specified beam width, and a low return loss at the design
frequency range. A parametric study of the corrugated horns,
however, shows that the objective function relating the pattern
shape, beam width and return loss is a nonlinear function of the
corrugation dimensions with many local optima. As a result one
has to resort to global optimization techniques, such as evolutionary
algorithms, for successful design of such antennas. Here,
an evolutionary programming (EP) algorithm is used to optimize
the pattern of a corrugated circular horn subject to various constraints
on return loss, antenna beam width, pattern circularity,
and low cross-polarization. Examples of design synthesis for a few
corrugated horns are presented. The results show excellent and
efficient optimization of the desired horn parameters. |
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2004 |
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Villanova Faculty Authorship |
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vudl:176962 |
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IEEE Antennas and Wireless Propagation Letters 3, 2004, 276-279. |
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en |
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Jamnejad, Vahraz. Hoorfar, Ahmad. |
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Jamnejad, Vahraz. Hoorfar, Ahmad. Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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Jamnejad, Vahraz. Hoorfar, Ahmad. |
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IEEE Antennas and Wireless Propagation Letters 3, 2004, 276-279. |
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Jamnejad, Vahraz. |
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2004 |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
| description |
Corrugated horn antennas are frequently used as the
feed elements in reflector antennas for satellite and deep space
communications. A particular application is the multi-frequency
feed horns for the reflector antennas of the JPL/NASA Deep Space
Network (DSN). In this application, it is desirable to design a
horn that has a nearly perfect circularly symmetric pattern (i.e.,
identical E- and H-plane patterns), with zero or low cross-polarization,
a specified beam width, and a low return loss at the design
frequency range. A parametric study of the corrugated horns,
however, shows that the objective function relating the pattern
shape, beam width and return loss is a nonlinear function of the
corrugation dimensions with many local optima. As a result one
has to resort to global optimization techniques, such as evolutionary
algorithms, for successful design of such antennas. Here,
an evolutionary programming (EP) algorithm is used to optimize
the pattern of a corrugated circular horn subject to various constraints
on return loss, antenna beam width, pattern circularity,
and low cross-polarization. Examples of design synthesis for a few
corrugated horns are presented. The results show excellent and
efficient optimization of the desired horn parameters. |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
| title_short |
Design of Corrugated Horn Antennas by Evolutionary Optimization Techniques. |
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design of corrugated horn antennas by evolutionary optimization techniques. |
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2004 |
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