Design of omni-directional circularly polarized antennas
Two wideband, circularly polarized (CP), planar, monopole, single feed antennas have been proposed and studied. The Moon-shaped antenna consists of a moon-shaped radiator with a microstrip feed line. A wideband circularly polarized radiation is achieved by optimizing a moon-shaped radiator and g...
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/10356/54469 |
| _version_ | 1826123144491958272 |
|---|---|
| author | Hu, Benyang. |
| author2 | Shen Zhongxiang |
| author_facet | Shen Zhongxiang Hu, Benyang. |
| author_sort | Hu, Benyang. |
| collection | NTU |
| description | Two wideband, circularly polarized (CP), planar, monopole, single feed antennas have been proposed and studied.
The Moon-shaped antenna consists of a moon-shaped radiator with a microstrip feed line. A wideband circularly polarized radiation is achieved by optimizing a moon-shaped radiator and ground plane shape. Impedance matching can be improved by gap between the moon shaped radiator and ground plane. The supporting substrate material is used low cost FR4 to design the antenna. The measured performances of the antenna are 1.52 GHz (2.0 -3.52 GHz) for 10-dB return loss bandwidth, 1.4 GHz (2.2-3.6 GHz) for 3-dB axial ratio bandwidth. Good agreement between simulated and measured results is achieved. The proposed antenna overall size is small of 70 mm × 47 mm × 0.8 mm.
The Z-shaped consists of a Z-shaped strip with a microstrip feed line. The antenna is prototyped with support of thin FR4 dielectric substrate. The measured performances of the antenna are 1.28 GHz (2.53 – 3.81 GHz) for 10-dB return loss bandwidth, 1.75 GHz (2.25 – 4.0 GHz) for 3-dB axial ratio bandwidth, and gain around 1.7 dBic over the 3-dB axial ratio bandwidth. Overall antenna volume is 50 mm × 40 mm × 0.8 mm. |
| first_indexed | 2024-10-01T05:59:51Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/54469 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:59:51Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/544692023-07-07T17:10:04Z Design of omni-directional circularly polarized antennas Hu, Benyang. Shen Zhongxiang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Two wideband, circularly polarized (CP), planar, monopole, single feed antennas have been proposed and studied. The Moon-shaped antenna consists of a moon-shaped radiator with a microstrip feed line. A wideband circularly polarized radiation is achieved by optimizing a moon-shaped radiator and ground plane shape. Impedance matching can be improved by gap between the moon shaped radiator and ground plane. The supporting substrate material is used low cost FR4 to design the antenna. The measured performances of the antenna are 1.52 GHz (2.0 -3.52 GHz) for 10-dB return loss bandwidth, 1.4 GHz (2.2-3.6 GHz) for 3-dB axial ratio bandwidth. Good agreement between simulated and measured results is achieved. The proposed antenna overall size is small of 70 mm × 47 mm × 0.8 mm. The Z-shaped consists of a Z-shaped strip with a microstrip feed line. The antenna is prototyped with support of thin FR4 dielectric substrate. The measured performances of the antenna are 1.28 GHz (2.53 – 3.81 GHz) for 10-dB return loss bandwidth, 1.75 GHz (2.25 – 4.0 GHz) for 3-dB axial ratio bandwidth, and gain around 1.7 dBic over the 3-dB axial ratio bandwidth. Overall antenna volume is 50 mm × 40 mm × 0.8 mm. Bachelor of Engineering 2013-06-20T08:47:21Z 2013-06-20T08:47:21Z 2013 2013 Final Year Project (FYP) http://hdl.handle.net/10356/54469 en Nanyang Technological University 43 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Hu, Benyang. Design of omni-directional circularly polarized antennas |
| title | Design of omni-directional circularly polarized antennas |
| title_full | Design of omni-directional circularly polarized antennas |
| title_fullStr | Design of omni-directional circularly polarized antennas |
| title_full_unstemmed | Design of omni-directional circularly polarized antennas |
| title_short | Design of omni-directional circularly polarized antennas |
| title_sort | design of omni directional circularly polarized antennas |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | http://hdl.handle.net/10356/54469 |
| work_keys_str_mv | AT hubenyang designofomnidirectionalcircularlypolarizedantennas |