Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band
In this paper, a deformed radiating element is proposed to design a comb-line array antenna for low sidelobe levels in the millimeter-wave band. To design the comb-line array antenna with a low sidelobe level, the use of the wide radiating elements for a relatively large radiation conductance is req...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9761188/ |
| _version_ | 1811309380039081984 |
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| author | Jae-Ho Lee Sang-Hoon Lee Hyun Joon Lee Jung-Hoon Oh Jang-Yeol Kim In-Kui Cho Dong-Wook Seo |
| author_facet | Jae-Ho Lee Sang-Hoon Lee Hyun Joon Lee Jung-Hoon Oh Jang-Yeol Kim In-Kui Cho Dong-Wook Seo |
| author_sort | Jae-Ho Lee |
| collection | DOAJ |
| description | In this paper, a deformed radiating element is proposed to design a comb-line array antenna for low sidelobe levels in the millimeter-wave band. To design the comb-line array antenna with a low sidelobe level, the use of the wide radiating elements for a relatively large radiation conductance is required. However, the conventional rectangular radiating element has transverse current flows on it, resulting in undesirable transverse radiation conductance for cross-polarization. On the contrary, in the proposed radiating element, which is implemented by cutting obliquely the connection part to the feeding line from a rectangular element, the radiations from the transverse currents cancel each other, and low radiation conductance for cross-polarization and dominant radiation conductance for co-polarization are achieved. A 17-element linear comb-line array antenna with the sidelobe below −20 dB is designed and measured at 79 GHz. Using the proposed radiating elements, we obtained the sidelobe level of −21.9 dB in the array, but the array using the conventional radiating elements shows the sidelobe level of −16.9 dB. This letter demonstrates the availability of the proposed element for the easy and accurate design of the comb-line array antenna with the low sidelobe level. |
| first_indexed | 2024-04-13T09:41:09Z |
| format | Article |
| id | doaj.art-b24b40d711fd4bb19ae17cdd785eeef5 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-13T09:41:09Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-b24b40d711fd4bb19ae17cdd785eeef52022-12-22T02:51:55ZengIEEEIEEE Access2169-35362022-01-0110471954720210.1109/ACCESS.2022.31692809761188Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave BandJae-Ho Lee0https://orcid.org/0000-0002-6878-8848Sang-Hoon Lee1https://orcid.org/0000-0002-6986-9930Hyun Joon Lee2https://orcid.org/0000-0001-8614-7115Jung-Hoon Oh3Jang-Yeol Kim4https://orcid.org/0000-0003-0644-8087In-Kui Cho5https://orcid.org/0000-0002-4270-6824Dong-Wook Seo6https://orcid.org/0000-0001-9449-7772Electronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaDivision of Electronics and Electrical Information Engineering/Interdisciplinary Major of Maritime AI Convergence, Korea Maritime and Ocean University, Busan, South KoreaElectronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaElectronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaElectronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaElectronics and Telecommunications Research Institute (ETRI), Daejeon, South KoreaDivision of Electronics and Electrical Information Engineering/Interdisciplinary Major of Maritime AI Convergence, Korea Maritime and Ocean University, Busan, South KoreaIn this paper, a deformed radiating element is proposed to design a comb-line array antenna for low sidelobe levels in the millimeter-wave band. To design the comb-line array antenna with a low sidelobe level, the use of the wide radiating elements for a relatively large radiation conductance is required. However, the conventional rectangular radiating element has transverse current flows on it, resulting in undesirable transverse radiation conductance for cross-polarization. On the contrary, in the proposed radiating element, which is implemented by cutting obliquely the connection part to the feeding line from a rectangular element, the radiations from the transverse currents cancel each other, and low radiation conductance for cross-polarization and dominant radiation conductance for co-polarization are achieved. A 17-element linear comb-line array antenna with the sidelobe below −20 dB is designed and measured at 79 GHz. Using the proposed radiating elements, we obtained the sidelobe level of −21.9 dB in the array, but the array using the conventional radiating elements shows the sidelobe level of −16.9 dB. This letter demonstrates the availability of the proposed element for the easy and accurate design of the comb-line array antenna with the low sidelobe level.https://ieeexplore.ieee.org/document/9761188/Antenna arraycomb-line antennalow sidelobemicrostrip antennamillimeter-wave |
| spellingShingle | Jae-Ho Lee Sang-Hoon Lee Hyun Joon Lee Jung-Hoon Oh Jang-Yeol Kim In-Kui Cho Dong-Wook Seo Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band IEEE Access Antenna array comb-line antenna low sidelobe microstrip antenna millimeter-wave |
| title | Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band |
| title_full | Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band |
| title_fullStr | Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band |
| title_full_unstemmed | Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band |
| title_short | Design of Comb-Line Array Antenna for Low Sidelobe Level in Millimeter-Wave Band |
| title_sort | design of comb line array antenna for low sidelobe level in millimeter wave band |
| topic | Antenna array comb-line antenna low sidelobe microstrip antenna millimeter-wave |
| url | https://ieeexplore.ieee.org/document/9761188/ |
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