THz CMOS On-Chip Antenna Array Using Defected Ground Structure
In this paper, we design a THz CMOS on-chip patch antenna with defected ground structure (DGS) and utilize it to implement a broadband and high gain on-chip antenna array. It is verified from the simulation that the DGS not only can increase the gain and bandwidth of the antenna element, but also ca...
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| Format: | Article |
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MDPI AG
2020-07-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/9/7/1137 |
| _version_ | 1797562572334956544 |
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| author | Changmin Lee Jinho Jeong |
| author_facet | Changmin Lee Jinho Jeong |
| author_sort | Changmin Lee |
| collection | DOAJ |
| description | In this paper, we design a THz CMOS on-chip patch antenna with defected ground structure (DGS) and utilize it to implement a broadband and high gain on-chip antenna array. It is verified from the simulation that the DGS not only can increase the gain and bandwidth of the antenna element, but also can increase the isolation between the antenna elements in the on-chip array. Therefore, it allows the design of the compact 1 × 2 and 2 × 2 on-chip antenna array with high gain and broad bandwidth. The element spacing and feedline structures of the antenna array are designed and optimized by the simulations. The designed antenna element, and 1 × 2 and 2 × 2 antenna arrays are fabricated in a commercial 65 nm CMOS process. In the on-wafer measurement, they exhibit an antenna gain of 3.1 dBi, 7.2 dBi, and 8.2 dBi with a bandwidth of 14.0%, 21.3%, and 28.0% for the reflection coefficient less than −10 dB, respectively, at 300 GHz. This result corresponds to very good performance compared to the reported THz CMOS on-chip antenna array. Therefore, the designed CMOS on-chip antenna element and array using DGS in this work can be effectively applied to build low-cost and high performance THz systems, because they can be fully implemented in a conventional CMOS process without requiring any additional processes or manufacturing techniques. |
| first_indexed | 2024-03-10T18:31:06Z |
| format | Article |
| id | doaj.art-f20911e080524534b4e8dd2d348de2e6 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T18:31:06Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-f20911e080524534b4e8dd2d348de2e62023-11-20T06:39:10ZengMDPI AGElectronics2079-92922020-07-0197113710.3390/electronics9071137THz CMOS On-Chip Antenna Array Using Defected Ground StructureChangmin Lee0Jinho Jeong1Department of Electronic Engineering, Sogang University, Seoul 04107, KoreaDepartment of Electronic Engineering, Sogang University, Seoul 04107, KoreaIn this paper, we design a THz CMOS on-chip patch antenna with defected ground structure (DGS) and utilize it to implement a broadband and high gain on-chip antenna array. It is verified from the simulation that the DGS not only can increase the gain and bandwidth of the antenna element, but also can increase the isolation between the antenna elements in the on-chip array. Therefore, it allows the design of the compact 1 × 2 and 2 × 2 on-chip antenna array with high gain and broad bandwidth. The element spacing and feedline structures of the antenna array are designed and optimized by the simulations. The designed antenna element, and 1 × 2 and 2 × 2 antenna arrays are fabricated in a commercial 65 nm CMOS process. In the on-wafer measurement, they exhibit an antenna gain of 3.1 dBi, 7.2 dBi, and 8.2 dBi with a bandwidth of 14.0%, 21.3%, and 28.0% for the reflection coefficient less than −10 dB, respectively, at 300 GHz. This result corresponds to very good performance compared to the reported THz CMOS on-chip antenna array. Therefore, the designed CMOS on-chip antenna element and array using DGS in this work can be effectively applied to build low-cost and high performance THz systems, because they can be fully implemented in a conventional CMOS process without requiring any additional processes or manufacturing techniques.https://www.mdpi.com/2079-9292/9/7/1137antenna arrayCMOSdefected ground structurepatch antennaterahertz |
| spellingShingle | Changmin Lee Jinho Jeong THz CMOS On-Chip Antenna Array Using Defected Ground Structure Electronics antenna array CMOS defected ground structure patch antenna terahertz |
| title | THz CMOS On-Chip Antenna Array Using Defected Ground Structure |
| title_full | THz CMOS On-Chip Antenna Array Using Defected Ground Structure |
| title_fullStr | THz CMOS On-Chip Antenna Array Using Defected Ground Structure |
| title_full_unstemmed | THz CMOS On-Chip Antenna Array Using Defected Ground Structure |
| title_short | THz CMOS On-Chip Antenna Array Using Defected Ground Structure |
| title_sort | thz cmos on chip antenna array using defected ground structure |
| topic | antenna array CMOS defected ground structure patch antenna terahertz |
| url | https://www.mdpi.com/2079-9292/9/7/1137 |
| work_keys_str_mv | AT changminlee thzcmosonchipantennaarrayusingdefectedgroundstructure AT jinhojeong thzcmosonchipantennaarrayusingdefectedgroundstructure |