Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna
A novel approach is proposed to design a circularly polarized (CP) hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth by incorporating an additional dielectric substrate between the antenna and the ground plane. This is in addition to the lower feeding substrate...
| 出版年: | Micromachines |
|---|---|
| 主要な著者: | , |
| フォーマット: | 論文 |
| 言語: | 英語 |
| 出版事項: |
MDPI AG
2023-02-01
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| 主題: | |
| オンライン･アクセス: | https://www.mdpi.com/2072-666X/14/2/436 |
| _version_ | 1850407304407547904 |
|---|---|
| author | Meshari D. Alanazi Salam K. Khamas |
| author_facet | Meshari D. Alanazi Salam K. Khamas |
| author_sort | Meshari D. Alanazi |
| collection | DOAJ |
| container_title | Micromachines |
| description | A novel approach is proposed to design a circularly polarized (CP) hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth by incorporating an additional dielectric substrate between the antenna and the ground plane. This is in addition to the lower feeding substrate that is located between the ground plane on one side and the feeding microstrip line on the other side. Adding another substrate on top of the ground plane provided an additional degree of freedom in the design that facilitated the achievement of ab 18% AR bandwidth. In addition, an integrated hemispherical DRA and perforated substrate configuration was utilized to achieve optimum effective substrate permittivity and overcome the DRA alignment and assembly challenges while maintaining the achieved wide CP bandwidth. A close agreement was achieved between measurements and simulations. |
| format | Article |
| id | doaj-art-1ea4a52be1a84c69a71b2a337ca2d68d |
| institution | Directory of Open Access Journals |
| issn | 2072-666X |
| language | English |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-1ea4a52be1a84c69a71b2a337ca2d68d2025-08-19T22:47:59ZengMDPI AGMicromachines2072-666X2023-02-0114243610.3390/mi14020436Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator AntennaMeshari D. Alanazi0Salam K. Khamas1Electrical Engineering Department, Jouf University, Sakaka 72388, Saudi ArabiaCommunications Research Group, Department of Electronic and Electrical Engineering, The University of Sheffield, Mappin Street, Sheffield S1 3JD, UKA novel approach is proposed to design a circularly polarized (CP) hemispherical dielectric resonator antenna (DRA) with a wide axial ratio (AR) bandwidth by incorporating an additional dielectric substrate between the antenna and the ground plane. This is in addition to the lower feeding substrate that is located between the ground plane on one side and the feeding microstrip line on the other side. Adding another substrate on top of the ground plane provided an additional degree of freedom in the design that facilitated the achievement of ab 18% AR bandwidth. In addition, an integrated hemispherical DRA and perforated substrate configuration was utilized to achieve optimum effective substrate permittivity and overcome the DRA alignment and assembly challenges while maintaining the achieved wide CP bandwidth. A close agreement was achieved between measurements and simulations.https://www.mdpi.com/2072-666X/14/2/436circularly polarizedDRAmm-wave bandhemispherical DRA |
| spellingShingle | Meshari D. Alanazi Salam K. Khamas Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna circularly polarized DRA mm-wave band hemispherical DRA |
| title | Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna |
| title_full | Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna |
| title_fullStr | Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna |
| title_full_unstemmed | Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna |
| title_short | Wideband Circularly Polarized Millimeter Wave Hemispherical Dielectric Resonator Antenna |
| title_sort | wideband circularly polarized millimeter wave hemispherical dielectric resonator antenna |
| topic | circularly polarized DRA mm-wave band hemispherical DRA |
| url | https://www.mdpi.com/2072-666X/14/2/436 |
| work_keys_str_mv | AT mesharidalanazi widebandcircularlypolarizedmillimeterwavehemisphericaldielectricresonatorantenna AT salamkkhamas widebandcircularlypolarizedmillimeterwavehemisphericaldielectricresonatorantenna |