Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network
Abstract This study presents a novel dual-band phase shifter with reconfigurable capabilities, enabling the implementation of an antenna system that supports switchable right-hand and left-hand circular polarizations. The proposed antenna exhibits high performance in terms of gain and polarization p...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-08-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
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| Online Access: | https://doi.org/10.1186/s13638-025-02495-4 |
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| author | Majid Allahverdizadeh Reza Masoumi Mohammad Bemani |
| author_facet | Majid Allahverdizadeh Reza Masoumi Mohammad Bemani |
| author_sort | Majid Allahverdizadeh |
| collection | DOAJ |
| description | Abstract This study presents a novel dual-band phase shifter with reconfigurable capabilities, enabling the implementation of an antenna system that supports switchable right-hand and left-hand circular polarizations. The proposed antenna exhibits high performance in terms of gain and polarization purity across two distinct frequency bands: 2.4 GHz and 5.2 GHz. The design methodology consists of two phases. First, four identical dual-band antennas are developed and optimized for efficient spatial arrangement. Then, a feeding network with one input and four output ports is designed to ensure precise signal distribution. A detailed mathematical model using dual-band transmission line theory and ABCD matrix analysis underpins the design. Integrating these components yields a reconfigurable dual-band circularly polarized antenna system. Full-wave simulations conducted in HFSS confirm that the feeding network delivers equal power to the four output ports. The output phases are 0°, 90°, 180°, and 270° in the first state, and 0°, 270°, 180°, and 90° in the second state, with a maximum phase error of 5°. When coupled with the antenna subarray, the system shows an axial ratio below 1.07 dB in the lower band and below 1.05 dB in the higher band. As a result, robust circular polarization is achieved for both right-hand and left-hand states at the target frequencies of 2.4 GHz and 5.2 GHz. Owing to its precision, reconfigurability, and dual-band operation, the proposed design is well-suited for 5G networks, where it can enhance data rates and minimize interference. Moreover, its compact and low-cost structure supports scalable IoT applications such as smart cities, connected vehicles, and advanced communication systems. |
| format | Article |
| id | doaj-art-867b5e2b714e440fa423fbd5ff70acb0 |
| institution | Kabale University |
| issn | 1687-1499 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj-art-867b5e2b714e440fa423fbd5ff70acb02025-08-24T11:03:49ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14992025-08-012025112310.1186/s13638-025-02495-4Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming networkMajid Allahverdizadeh0Reza Masoumi1Mohammad Bemani2Faculty of Electrical and Computer Engineering, University of TabrizFaculty of Electrical and Computer Engineering, University of TabrizFaculty of Electrical and Computer Engineering, University of TabrizAbstract This study presents a novel dual-band phase shifter with reconfigurable capabilities, enabling the implementation of an antenna system that supports switchable right-hand and left-hand circular polarizations. The proposed antenna exhibits high performance in terms of gain and polarization purity across two distinct frequency bands: 2.4 GHz and 5.2 GHz. The design methodology consists of two phases. First, four identical dual-band antennas are developed and optimized for efficient spatial arrangement. Then, a feeding network with one input and four output ports is designed to ensure precise signal distribution. A detailed mathematical model using dual-band transmission line theory and ABCD matrix analysis underpins the design. Integrating these components yields a reconfigurable dual-band circularly polarized antenna system. Full-wave simulations conducted in HFSS confirm that the feeding network delivers equal power to the four output ports. The output phases are 0°, 90°, 180°, and 270° in the first state, and 0°, 270°, 180°, and 90° in the second state, with a maximum phase error of 5°. When coupled with the antenna subarray, the system shows an axial ratio below 1.07 dB in the lower band and below 1.05 dB in the higher band. As a result, robust circular polarization is achieved for both right-hand and left-hand states at the target frequencies of 2.4 GHz and 5.2 GHz. Owing to its precision, reconfigurability, and dual-band operation, the proposed design is well-suited for 5G networks, where it can enhance data rates and minimize interference. Moreover, its compact and low-cost structure supports scalable IoT applications such as smart cities, connected vehicles, and advanced communication systems.https://doi.org/10.1186/s13638-025-02495-4Dual-band circular polarizationReconfigurable phase shifterAntenna feeding networkWilkinson power dividerCircularly polarized antenna5G communication systems |
| spellingShingle | Majid Allahverdizadeh Reza Masoumi Mohammad Bemani Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network EURASIP Journal on Wireless Communications and Networking Dual-band circular polarization Reconfigurable phase shifter Antenna feeding network Wilkinson power divider Circularly polarized antenna 5G communication systems |
| title | Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| title_full | Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| title_fullStr | Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| title_full_unstemmed | Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| title_short | Dual-band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| title_sort | dual band reconfigurable circularly polarized antenna with novel phase shifter and beamforming network |
| topic | Dual-band circular polarization Reconfigurable phase shifter Antenna feeding network Wilkinson power divider Circularly polarized antenna 5G communication systems |
| url | https://doi.org/10.1186/s13638-025-02495-4 |
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