Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas
In this work, two cone-inverted cylindrical and cross-hybrid dielectric resonator antennas are stacked and excited by the coaxial probe method with an operating standard resonant frequency of 5.438 GHz. A drawback of these standard Dielectric Resonator Antennas (DRAs) is their narrow bandwidth. For...
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| Format: | Article |
| Language: | English |
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University of Baghdad
2023-03-01
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| Series: | Iraqi Journal of Physics |
| Subjects: | |
| Online Access: | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1084 |
| _version_ | 1811154827391008768 |
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| author | Nabeel Areebi Jamal Nasir Jabir |
| author_facet | Nabeel Areebi Jamal Nasir Jabir |
| author_sort | Nabeel Areebi |
| collection | DOAJ |
| description |
In this work, two cone-inverted cylindrical and cross-hybrid dielectric resonator antennas are stacked and excited by the coaxial probe method with an operating standard resonant frequency of 5.438 GHz. A drawback of these standard Dielectric Resonator Antennas (DRAs) is their narrow bandwidth. For good antenna performance, a stacked DR geometry and a thick dielectric substrate having a low dielectric constant are desired since this provides large bandwidth, better radiation power, reduces conductor loss and nonappearance of surface waves. Many approaches, such as changing the shape of the dielectric resonator, have been used to enhance bandwidth. Using DRA, having the lowest dielectric constant, increases the bandwidth and the electromagnetic energy. In the current work, bandwidth improvement was significantly achieved by the proposed geometry by varying the antenna size. A novel hybrid DRA configuration is used to increase the bandwidth of the antenna to 89.27% and 149.23% due to cone-inverted cylindrical and cross-hybrid dielectric resonator antennas, respectively. The DRA is designed numerically via Finite Difference Time Domain (FDTD) method. Several parameters like return loss, input impedance (verified at ) and radiation pattern are calculated. Furthermore, the stacked-hybrid technique is used to enhance the antenna's performance which is useful for broadband communication and the demand of wireless.
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| first_indexed | 2024-04-10T04:23:43Z |
| format | Article |
| id | doaj.art-42652143e99f4a378f36b7d3bd897655 |
| institution | Directory Open Access Journal |
| issn | 2070-4003 2664-5548 |
| language | English |
| last_indexed | 2024-04-10T04:23:43Z |
| publishDate | 2023-03-01 |
| publisher | University of Baghdad |
| record_format | Article |
| series | Iraqi Journal of Physics |
| spelling | doaj.art-42652143e99f4a378f36b7d3bd8976552023-03-10T20:46:19ZengUniversity of BaghdadIraqi Journal of Physics2070-40032664-55482023-03-0121110.30723/ijp.v21i1.1084Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator AntennasNabeel Areebi0Jamal Nasir Jabir1Department of Physics, College of Education, University of Al-Qadisiyah, Al-Diwaniyah, IraqDepartment of Physics, College of Education, University of Al-Qadisiyah, Al-Diwaniyah, 58002, Iraq In this work, two cone-inverted cylindrical and cross-hybrid dielectric resonator antennas are stacked and excited by the coaxial probe method with an operating standard resonant frequency of 5.438 GHz. A drawback of these standard Dielectric Resonator Antennas (DRAs) is their narrow bandwidth. For good antenna performance, a stacked DR geometry and a thick dielectric substrate having a low dielectric constant are desired since this provides large bandwidth, better radiation power, reduces conductor loss and nonappearance of surface waves. Many approaches, such as changing the shape of the dielectric resonator, have been used to enhance bandwidth. Using DRA, having the lowest dielectric constant, increases the bandwidth and the electromagnetic energy. In the current work, bandwidth improvement was significantly achieved by the proposed geometry by varying the antenna size. A novel hybrid DRA configuration is used to increase the bandwidth of the antenna to 89.27% and 149.23% due to cone-inverted cylindrical and cross-hybrid dielectric resonator antennas, respectively. The DRA is designed numerically via Finite Difference Time Domain (FDTD) method. Several parameters like return loss, input impedance (verified at ) and radiation pattern are calculated. Furthermore, the stacked-hybrid technique is used to enhance the antenna's performance which is useful for broadband communication and the demand of wireless. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1084Bandwidth Dielectric Resonator Antenna FDTD methodHybrid Antennas Stacked-technique |
| spellingShingle | Nabeel Areebi Jamal Nasir Jabir Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas Iraqi Journal of Physics Bandwidth Dielectric Resonator Antenna FDTD method Hybrid Antennas Stacked-technique |
| title | Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas |
| title_full | Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas |
| title_fullStr | Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas |
| title_full_unstemmed | Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas |
| title_short | Bandwidth Improvement of a Cone-Inverted Cylindrical and Cross Hybrids Dielectric Resonator Antennas |
| title_sort | bandwidth improvement of a cone inverted cylindrical and cross hybrids dielectric resonator antennas |
| topic | Bandwidth Dielectric Resonator Antenna FDTD method Hybrid Antennas Stacked-technique |
| url | https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1084 |
| work_keys_str_mv | AT nabeelareebi bandwidthimprovementofaconeinvertedcylindricalandcrosshybridsdielectricresonatorantennas AT jamalnasirjabir bandwidthimprovementofaconeinvertedcylindricalandcrosshybridsdielectricresonatorantennas |