Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation
A dual-feed antenna system with circular polarization (CP) diversity and high isolation is proposed in this paper. The proposed antenna consists of two bent monopole antennas and an isosceles triangular partial GND on a single layer. To simply design an antenna with dual-feed dual-CP characteristics...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
The Korean Institute of Electromagnetic Engineering and Science
2023-03-01
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| Series: | Journal of Electromagnetic Engineering and Science |
| Subjects: | |
| Online Access: | https://jees.kr/upload/pdf/jees-2023-2-r-155.pdf |
| _version_ | 1797845022621564928 |
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| author | Sang Won Choi Youngje Sung |
| author_facet | Sang Won Choi Youngje Sung |
| author_sort | Sang Won Choi |
| collection | DOAJ |
| description | A dual-feed antenna system with circular polarization (CP) diversity and high isolation is proposed in this paper. The proposed antenna consists of two bent monopole antennas and an isosceles triangular partial GND on a single layer. To simply design an antenna with dual-feed dual-CP characteristics, CP bandwidth (BW) is optimized based on a single antenna. The proposed antenna is structurally different from conventional antennas in three ways. Structural asymmetry is realized by bending the shape of the antenna and moving the position, and thus good CP characteristics are obtained. The feeding structure is changed from a linear type to a meander type. As a result, a single monopole antenna has a CP BW of 36%. Next, an antenna system with dual-CP characteristics is introduced by implementing two monopole antennas on a single layer. In this structure, the resonant frequency is controlled by the antenna geometrical parameters, and the null frequency at S21 is controlled by the distance between the two antennas. The measured results show that the CP BW of the proposed antenna is 40.6% (1.51–2.28 GHz). The measured isolation is below −20 dB within the operating BW. |
| first_indexed | 2024-04-09T17:31:51Z |
| format | Article |
| id | doaj.art-c3272b3d195b424689ac77ad2947267c |
| institution | Directory Open Access Journal |
| issn | 2671-7255 2671-7263 |
| language | English |
| last_indexed | 2024-04-09T17:31:51Z |
| publishDate | 2023-03-01 |
| publisher | The Korean Institute of Electromagnetic Engineering and Science |
| record_format | Article |
| series | Journal of Electromagnetic Engineering and Science |
| spelling | doaj.art-c3272b3d195b424689ac77ad2947267c2023-04-18T04:13:00ZengThe Korean Institute of Electromagnetic Engineering and ScienceJournal of Electromagnetic Engineering and Science2671-72552671-72632023-03-0123215416410.26866/jees.2023.2.r.1553583Simple Dual-Feed Dual-Circular Polarization Antenna with High IsolationSang Won Choi0Youngje Sung1Department of Electronic Engineering, Kyonggi University, Suwon, KoreaDepartment of Electronic Engineering, Kyonggi University, Suwon, KoreaA dual-feed antenna system with circular polarization (CP) diversity and high isolation is proposed in this paper. The proposed antenna consists of two bent monopole antennas and an isosceles triangular partial GND on a single layer. To simply design an antenna with dual-feed dual-CP characteristics, CP bandwidth (BW) is optimized based on a single antenna. The proposed antenna is structurally different from conventional antennas in three ways. Structural asymmetry is realized by bending the shape of the antenna and moving the position, and thus good CP characteristics are obtained. The feeding structure is changed from a linear type to a meander type. As a result, a single monopole antenna has a CP BW of 36%. Next, an antenna system with dual-CP characteristics is introduced by implementing two monopole antennas on a single layer. In this structure, the resonant frequency is controlled by the antenna geometrical parameters, and the null frequency at S21 is controlled by the distance between the two antennas. The measured results show that the CP BW of the proposed antenna is 40.6% (1.51–2.28 GHz). The measured isolation is below −20 dB within the operating BW.https://jees.kr/upload/pdf/jees-2023-2-r-155.pdfcircularly polarized antennacircular polarization diversitydual-feed antennahigh isolation |
| spellingShingle | Sang Won Choi Youngje Sung Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation Journal of Electromagnetic Engineering and Science circularly polarized antenna circular polarization diversity dual-feed antenna high isolation |
| title | Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation |
| title_full | Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation |
| title_fullStr | Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation |
| title_full_unstemmed | Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation |
| title_short | Simple Dual-Feed Dual-Circular Polarization Antenna with High Isolation |
| title_sort | simple dual feed dual circular polarization antenna with high isolation |
| topic | circularly polarized antenna circular polarization diversity dual-feed antenna high isolation |
| url | https://jees.kr/upload/pdf/jees-2023-2-r-155.pdf |
| work_keys_str_mv | AT sangwonchoi simpledualfeeddualcircularpolarizationantennawithhighisolation AT youngjesung simpledualfeeddualcircularpolarizationantennawithhighisolation |