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Design of a Planar Wide-Gain-Bandwidth Metasurface Antenna at Terahertz Frequency
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | Ikmo Park | - |
| dc.contributor.author | HUSSAIN, NIAMAT | - |
| dc.date.accessioned | 2018-11-08T08:23:56Z | - |
| dc.date.available | 2018-11-08T08:23:56Z | - |
| dc.date.issued | 2017-08 | - |
| dc.identifier.other | 25468 | - |
| dc.identifier.uri | https://dspace.ajou.ac.kr/handle/2018.oak/13591 | - |
| dc.description | 학위논문(석사)--아주대학교 일반대학원 :전자공학과,2017. 8 | - |
| dc.description.tableofcontents | Chapter 1. Introduction Chapter 2. Planar Wide-Gain-Bandwidth metasurface antenna 2.1 Antenna configuration 2.2 Antenna analysis and parametric discussion 2.3 Optimum antenna performance Chapter 3. Multiple-Feed Wide-Gain-Bandwidth metasurface antenna 3.1 Antenna configuration 3.2 Antenna characteristics Chapter 4. Performance comparison of the single-feed antenna for different values of substrate thickness 4.1 Antenna configuration and characteristics Chapter 5. Performance of the Multiple-Feed antenna with different numbers of patch cells at different substrate thickness 5.1 Antenna configuration 5.2 Antenna characteristics Chapter 6. Conclusion References 45 Author’s publications 49 | - |
| dc.language.iso | eng | - |
| dc.publisher | The Graduate School, Ajou University | - |
| dc.rights | 아주대학교 논문은 저작권에 의해 보호받습니다. | - |
| dc.title | Design of a Planar Wide-Gain-Bandwidth Metasurface Antenna at Terahertz Frequency | - |
| dc.title.alternative | Design of a Planar Wide-Gain-Bandwidth Metasurface Antenna at Terahertz Frequency | - |
| dc.type | Thesis | - |
| dc.contributor.affiliation | 아주대학교 일반대학원 | - |
| dc.contributor.alternativeName | NIAMATHUSSAIN | - |
| dc.contributor.department | 일반대학원 전자공학과 | - |
| dc.date.awarded | 2017. 8 | - |
| dc.description.degree | Master | - |
| dc.identifier.localId | 788498 | - |
| dc.identifier.url | http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000025468 | - |
| dc.subject.keyword | Metasurface Antennas | - |
| dc.subject.keyword | Terahertz Antennas | - |
| dc.subject.keyword | Wide-Gain-Bandwidth | - |
| dc.description.alternativeAbstract | The design of a planar wide-gain-bandwidth metasurface antenna at terahertz frequency have been presented. The proposed antenna comprised of a square patch metasurface and a planar feeding structure, both of which were etched on an electrically thin, high-permittivity GaAs substrate. The antenna with a single feeding structure showed a maximum broadside gain of 9.8 dBi, a radiation efficiency of 69%, and a 3-dB gain bandwidth of 16%. The antenna gain performance was significantly improved by exciting the antenna with an array of slit feeding and without changing the antenna size. The antenna with a multiple (five) feeding structure showed a gain of 15.5 dBi, with improved 3-dB gain bandwidth and radiation efficiency. This antenna achieved a huge size reduction while achieving a comparable gain with the lens-coupled antenna. Moreover, the antenna performed as Fabry-Perot antenna exhibiting, high gain and directivity at higher values of substrate thickness (H=160 µm and H=80 µm), while behaved as metasurface antenna with wide-gain bandwidth at a lower thickness of the substrate (H=40 µm and H=20 µm). The antenna gain can be linearly increased by increasing patch cells using multiple-feeding, and we can achieve useful antenna characteristics by a combination of patch number and different values of substrate thickness. | - |
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- Graduate School of Ajou University > Department of Electronic Engineering > 3. Theses(Master)
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