Log-periodic monopole array with uniform spacing and uniform height
This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure...
| Main Authors: | , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/137839 |
| _version_ | 1826125176935284736 |
|---|---|
| author | Song, Qinghua Shen, Zhongxiang Lu, Jian |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Song, Qinghua Shen, Zhongxiang Lu, Jian |
| author_sort | Song, Qinghua |
| collection | NTU |
| description | This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure and retains a low profile. The top-hat monopoles and folded top-hat monopoles are used to reduce the height of the antenna. A maximum bandwidth of 3:1 is theoretically proposed by considering the maximum and minimum spacing factor of the array. A meandering microstrip line is employed as the feeding line. The compensation of the length of the feeding line is proposed for the uniformly spaced LPMA compared to the conventional array. A prototype is fabricated and tested. Measured results indicate that an impedance bandwidth from 2 to 6 GHz (3:1) with VSWR < 2 is achieved. The measured peak realized gain is in the range of 6.6-8.7 dBi, which has great potential in many communication systems such as missile and airborne applications. |
| first_indexed | 2024-10-01T06:32:26Z |
| format | Journal Article |
| id | ntu-10356/137839 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:32:26Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1378392020-04-16T02:35:37Z Log-periodic monopole array with uniform spacing and uniform height Song, Qinghua Shen, Zhongxiang Lu, Jian School of Electrical and Electronic Engineering Engineering::Electrical and electronic engineering Log-periodic Monopole Array Low Profile This paper presents a log-periodic monopole array (LPMA) with uniform spacing and uniform height operating in a wideband of 2-6 GHz. Different from the conventional LPMA with logarithmic spacing and height, the proposed antenna with uniform spacing and uniform height simplifies the design procedure and retains a low profile. The top-hat monopoles and folded top-hat monopoles are used to reduce the height of the antenna. A maximum bandwidth of 3:1 is theoretically proposed by considering the maximum and minimum spacing factor of the array. A meandering microstrip line is employed as the feeding line. The compensation of the length of the feeding line is proposed for the uniformly spaced LPMA compared to the conventional array. A prototype is fabricated and tested. Measured results indicate that an impedance bandwidth from 2 to 6 GHz (3:1) with VSWR < 2 is achieved. The measured peak realized gain is in the range of 6.6-8.7 dBi, which has great potential in many communication systems such as missile and airborne applications. 2020-04-16T02:35:37Z 2020-04-16T02:35:37Z 2018 Journal Article Song, Q., Shen, Z., & Lu, J. (2018). Log-periodic monopole array with uniform spacing and uniform height. IEEE Transactions on Antennas and Propagation, 66(9), 4687-4694. doi:10.1109/TAP.2018.2846797 0018-926X https://hdl.handle.net/10356/137839 10.1109/TAP.2018.2846797 2-s2.0-85048566441 9 66 4687 4694 en IEEE Transactions on Antennas and Propagation © 2018 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Log-periodic Monopole Array Low Profile Song, Qinghua Shen, Zhongxiang Lu, Jian Log-periodic monopole array with uniform spacing and uniform height |
| title | Log-periodic monopole array with uniform spacing and uniform height |
| title_full | Log-periodic monopole array with uniform spacing and uniform height |
| title_fullStr | Log-periodic monopole array with uniform spacing and uniform height |
| title_full_unstemmed | Log-periodic monopole array with uniform spacing and uniform height |
| title_short | Log-periodic monopole array with uniform spacing and uniform height |
| title_sort | log periodic monopole array with uniform spacing and uniform height |
| topic | Engineering::Electrical and electronic engineering Log-periodic Monopole Array Low Profile |
| url | https://hdl.handle.net/10356/137839 |
| work_keys_str_mv | AT songqinghua logperiodicmonopolearraywithuniformspacinganduniformheight AT shenzhongxiang logperiodicmonopolearraywithuniformspacinganduniformheight AT lujian logperiodicmonopolearraywithuniformspacinganduniformheight |