A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications
The paper proposes a four-directional beamforming switched antenna system based on Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a 45-degree phase shifter. A <inline-formula> <tex-math notation="LaTeX">$4\times 4$ </tex-math></...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10475336/ |
| _version_ | 1827304592543580160 |
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| author | Ming-An Chung Chia-Wei Lin Chih-Wei Yang |
| author_facet | Ming-An Chung Chia-Wei Lin Chih-Wei Yang |
| author_sort | Ming-An Chung |
| collection | DOAJ |
| description | The paper proposes a four-directional beamforming switched antenna system based on Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a 45-degree phase shifter. A <inline-formula> <tex-math notation="LaTeX">$4\times 4$ </tex-math></inline-formula> Butler matrix is combined with a 28 GHz patch antenna to form a Butler network antenna. Four directions of the radiation beam can be changed when the input position is changed. From the simulation and measurement results, the measured reflection coefficients cover 27.9-29.3 GHz at all four ports with a standard reflection coefficient of -10 dB and four different angles of 15°, -46°, +44° and -13° for switching beam direction. The antenna’s compact size of <inline-formula> <tex-math notation="LaTeX">$39.1\times 45.6\,\,{\mathrm {mm}}^{2}$ </tex-math></inline-formula> (<inline-formula> <tex-math notation="LaTeX">$3.65\lambda _{0}\times 4.26\lambda _{0}$ </tex-math></inline-formula>) makes it ideal for use in millimeter wave bands for 5G NR n258, and n261 applications, while also providing a high gain of 11.5 dBi. |
| first_indexed | 2024-04-24T17:41:44Z |
| format | Article |
| id | doaj.art-6adc7fd585ba4288a175756d7774e0ef |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-24T17:41:44Z |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-6adc7fd585ba4288a175756d7774e0ef2024-03-27T23:00:37ZengIEEEIEEE Access2169-35362024-01-0112429494296010.1109/ACCESS.2024.337923510475336A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR ApplicationsMing-An Chung0https://orcid.org/0000-0002-6426-6874Chia-Wei Lin1Chih-Wei Yang2Department of Electronic Engineering, National Taipei University of Technology, Taipei, TaiwanDepartment of Electronic Engineering, National Taipei University of Technology, Taipei, TaiwanDepartment of Electronic Engineering, National Taipei University of Technology, Taipei, TaiwanThe paper proposes a four-directional beamforming switched antenna system based on Butler matrix for 28 GHz mmWave. It is made up of a 90-degree coupler, a crossover, and a 45-degree phase shifter. A <inline-formula> <tex-math notation="LaTeX">$4\times 4$ </tex-math></inline-formula> Butler matrix is combined with a 28 GHz patch antenna to form a Butler network antenna. Four directions of the radiation beam can be changed when the input position is changed. From the simulation and measurement results, the measured reflection coefficients cover 27.9-29.3 GHz at all four ports with a standard reflection coefficient of -10 dB and four different angles of 15°, -46°, +44° and -13° for switching beam direction. The antenna’s compact size of <inline-formula> <tex-math notation="LaTeX">$39.1\times 45.6\,\,{\mathrm {mm}}^{2}$ </tex-math></inline-formula> (<inline-formula> <tex-math notation="LaTeX">$3.65\lambda _{0}\times 4.26\lambda _{0}$ </tex-math></inline-formula>) makes it ideal for use in millimeter wave bands for 5G NR n258, and n261 applications, while also providing a high gain of 11.5 dBi.https://ieeexplore.ieee.org/document/10475336/Array antennaButler matrixsmart antennabeam switchingmillimeter wave |
| spellingShingle | Ming-An Chung Chia-Wei Lin Chih-Wei Yang A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications IEEE Access Array antenna Butler matrix smart antenna beam switching millimeter wave |
| title | A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications |
| title_full | A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications |
| title_fullStr | A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications |
| title_full_unstemmed | A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications |
| title_short | A Low-Cost Four-Directional Beamforming Switched Butler Matrix Network Antenna for 5G NR Applications |
| title_sort | low cost four directional beamforming switched butler matrix network antenna for 5g nr applications |
| topic | Array antenna Butler matrix smart antenna beam switching millimeter wave |
| url | https://ieeexplore.ieee.org/document/10475336/ |
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