Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems
This article proposes the design of a coupled-fed printed dipole antenna for direction finding (DF) systems. The antenna consists of a radiating 50° angled expanded-arm printed dipole as well as a fan-shaped feeder that is located on the opposite side of the radiating dipole. The 50° angled expanded...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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The Korean Institute of Electromagnetic Engineering and Science
2019-10-01
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| Series: | Journal of Electromagnetic Engineering and Science |
| Subjects: | |
| Online Access: | http://www.jees.kr/upload/pdf/jees-2019-19-4-266.pdf |
| _version_ | 1828851504481566720 |
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| author | Sungsik Wang Sungjun Yoo Junsik Park Hongsuk Shim Hosung Choo |
| author_facet | Sungsik Wang Sungjun Yoo Junsik Park Hongsuk Shim Hosung Choo |
| author_sort | Sungsik Wang |
| collection | DOAJ |
| description | This article proposes the design of a coupled-fed printed dipole antenna for direction finding (DF) systems. The antenna consists of a radiating 50° angled expanded-arm printed dipole as well as a fan-shaped feeder that is located on the opposite side of the radiating dipole. The 50° angled expanded-arm structure results in a wide beam-width and broadband-matching characteristics. The more the arm angle is bent, the wider the beam-width pattern. Note that the expanded structure to the side of the dipole arm allows the wide beam-width of the radiation pattern. The printed dipole is then electromagnetically coupled with the fan-shaped feeder to obtain broadband-matching characteristics. To obtain additional broadband-matching characteristics, the circular cavity and the four-step tapered structures of the radiating printed dipole are carefully tuned by considering the coupled fields induced by the indirect feeding structure. The reflection coefficients are −14.6 dB and −11.9 dB at 1.575 GHz and 2.4 GHz, and the boresight gains are 4.8 dBi and 1 dBi, respectively. To confirm the DF capability of the proposed antenna, the pattern of the 4 × 4 arrays is observed by varying the steering angle. |
| first_indexed | 2024-12-12T23:33:59Z |
| format | Article |
| id | doaj.art-fb1855a35efe4c5ca37b33f40186ba14 |
| institution | Directory Open Access Journal |
| issn | 2671-7255 2671-7263 |
| language | English |
| last_indexed | 2024-12-12T23:33:59Z |
| publishDate | 2019-10-01 |
| publisher | The Korean Institute of Electromagnetic Engineering and Science |
| record_format | Article |
| series | Journal of Electromagnetic Engineering and Science |
| spelling | doaj.art-fb1855a35efe4c5ca37b33f40186ba142022-12-22T00:07:36ZengThe Korean Institute of Electromagnetic Engineering and ScienceJournal of Electromagnetic Engineering and Science2671-72552671-72632019-10-0119426627110.26866/jees.2019.19.4.2663363Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding SystemsSungsik Wang0Sungjun Yoo1Junsik Park2Hongsuk Shim3Hosung Choo4 School of Electronic and Electrical Engineering, Hongik University, Seoul, Korea School of Electronic and Electrical Engineering, Hongik University, Seoul, Korea Hanwha Systems Co. Ltd., Seongnam, Korea Hanwha Systems Co. Ltd., Seongnam, Korea School of Electronic and Electrical Engineering, Hongik University, Seoul, KoreaThis article proposes the design of a coupled-fed printed dipole antenna for direction finding (DF) systems. The antenna consists of a radiating 50° angled expanded-arm printed dipole as well as a fan-shaped feeder that is located on the opposite side of the radiating dipole. The 50° angled expanded-arm structure results in a wide beam-width and broadband-matching characteristics. The more the arm angle is bent, the wider the beam-width pattern. Note that the expanded structure to the side of the dipole arm allows the wide beam-width of the radiation pattern. The printed dipole is then electromagnetically coupled with the fan-shaped feeder to obtain broadband-matching characteristics. To obtain additional broadband-matching characteristics, the circular cavity and the four-step tapered structures of the radiating printed dipole are carefully tuned by considering the coupled fields induced by the indirect feeding structure. The reflection coefficients are −14.6 dB and −11.9 dB at 1.575 GHz and 2.4 GHz, and the boresight gains are 4.8 dBi and 1 dBi, respectively. To confirm the DF capability of the proposed antenna, the pattern of the 4 × 4 arrays is observed by varying the steering angle.http://www.jees.kr/upload/pdf/jees-2019-19-4-266.pdfarraybroadband antennacoupled feedprinted dipolewide beam pattern antenna |
| spellingShingle | Sungsik Wang Sungjun Yoo Junsik Park Hongsuk Shim Hosung Choo Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems Journal of Electromagnetic Engineering and Science array broadband antenna coupled feed printed dipole wide beam pattern antenna |
| title | Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems |
| title_full | Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems |
| title_fullStr | Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems |
| title_full_unstemmed | Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems |
| title_short | Design of a Broadband Coupled-Fed Printed Dipole Antenna as an Array Element for Direction Finding Systems |
| title_sort | design of a broadband coupled fed printed dipole antenna as an array element for direction finding systems |
| topic | array broadband antenna coupled feed printed dipole wide beam pattern antenna |
| url | http://www.jees.kr/upload/pdf/jees-2019-19-4-266.pdf |
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