|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Information Science and Technology / Faculty of Information Science and Technology >
Peer-reviewed Journal Articles, etc >
Evolutional Design of Waveguide Slot Antenna With Dielectric Lenses
| Title: | Evolutional Design of Waveguide Slot Antenna With Dielectric Lenses |
| Authors: | Itoh, Keiichi Browse this author | | Miyata, Katsumasa Browse this author | | Igarashi, Hajime Browse this author →KAKEN DB |
| Keywords: | Dielectric lens | | finite-difference time-domain method | | micro-genetic algorithm | | waveguide slot antennas |
| Issue Date: | Feb-2012 |
| Publisher: | IEEE |
| Journal Title: | IEEE Transactions on Magnetics |
| Volume: | 48 |
| Issue: | 2 |
| Start Page: | 779 |
| End Page: | 782 |
| Publisher DOI: | 10.1109/TMAG.2011.2176320 |
| Abstract: | This paper reports novel design method of waveguide slot array antenna with dielectric lenses by using the evolutionary optimization. We adopt the micro-genetic algorithm (MGA) with the real-coded gene as the optimization method and the finite-difference time-domain (FDTD) method to evaluate the objective function. The purpose of this study is to establish the design method of the above antenna by optimizing slot length and offset parameters. In the optimization of the antenna aperture distribution, it is shown that the optimized aperture field becomes sufficiently uniform, and the side-lobe levels (SLL) are improved in comparison with those of conventional antennas. Another optimization in which the objective function is evaluated by the array factor controls directly the side-lobe levels, to design low side-lobe antennas. By using the proposed method, the target antenna is optimized to satisfy the given SLL. It is confirmed that the proposed design method is a promising tool for designing the antennas loaded with dielectric materials. |
| Rights: | © 2012 IEEE. Reprinted, with permission, from Itoh, K., Miyata, K., Igarashi, H., Evolutional Design of Waveguide Slot Antenna With Dielectric Lenses, IEEE Transactions on Magnetics, Feb. 2012. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Hokkaido University products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/48390 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 五十嵐 一
|
