A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application
A period-reconfigurable leaky-wave antenna (LWA) with circular polarization (CP) and fixed-frequency beam scanning (FFBS) is developed in this article. Operating in the <i>K</i>a-band, this antenna consists of a low-loss groove gap waveguide (GGW) as the slow-wave transmission structure,...
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| Format: | Article |
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MDPI AG
2025-03-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/3/274 |
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| author | Xingying Huo Yuchen Ma Jiayi Liu Qinghuai Zhou |
| author_facet | Xingying Huo Yuchen Ma Jiayi Liu Qinghuai Zhou |
| author_sort | Xingying Huo |
| collection | DOAJ |
| description | A period-reconfigurable leaky-wave antenna (LWA) with circular polarization (CP) and fixed-frequency beam scanning (FFBS) is developed in this article. Operating in the <i>K</i>a-band, this antenna consists of a low-loss groove gap waveguide (GGW) as the slow-wave transmission structure, a circular split-ring patch array on the top layer for radiation, and a slotted ground between them for energy coupling. Each slot is independently and electrically controlled by a pair of PIN diodes under the coupling slot. Thus, the period length of the patches can be manipulated and an LWA with CP and FFBS is achieved with −1th spatial harmonics radiated. The simulation results show that the bean-scanning range from 61° to 63° can be realized during the observation frequency band, with good circular polarization and a peak gain of 17.1 dBi, which is verified by the measurement. |
| format | Article |
| id | doaj-art-39def9171df34432a72bfbf83068bd14 |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-39def9171df34432a72bfbf83068bd142025-08-20T02:42:25ZengMDPI AGPhotonics2304-67322025-03-0112327410.3390/photonics12030274A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave ApplicationXingying Huo0Yuchen Ma1Jiayi Liu2Qinghuai Zhou3School of Computer Science, Liupanshui Normal University, Liupanshui 553003, ChinaChina Academy of Information and Communications Technology, Beijing 100191, ChinaSchool of Computer Science, Liupanshui Normal University, Liupanshui 553003, ChinaDepartment of Mathematics, The 26th Middle School of LiuPanShui, Liupanshui 553003, ChinaA period-reconfigurable leaky-wave antenna (LWA) with circular polarization (CP) and fixed-frequency beam scanning (FFBS) is developed in this article. Operating in the <i>K</i>a-band, this antenna consists of a low-loss groove gap waveguide (GGW) as the slow-wave transmission structure, a circular split-ring patch array on the top layer for radiation, and a slotted ground between them for energy coupling. Each slot is independently and electrically controlled by a pair of PIN diodes under the coupling slot. Thus, the period length of the patches can be manipulated and an LWA with CP and FFBS is achieved with −1th spatial harmonics radiated. The simulation results show that the bean-scanning range from 61° to 63° can be realized during the observation frequency band, with good circular polarization and a peak gain of 17.1 dBi, which is verified by the measurement.https://www.mdpi.com/2304-6732/12/3/274circular polarizationfixed-frequency beam scanningleaky-wave antennaperiod-reconfiguration |
| spellingShingle | Xingying Huo Yuchen Ma Jiayi Liu Qinghuai Zhou A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application Photonics circular polarization fixed-frequency beam scanning leaky-wave antenna period-reconfiguration |
| title | A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application |
| title_full | A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application |
| title_fullStr | A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application |
| title_full_unstemmed | A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application |
| title_short | A Fixed-Frequency Beam-Scanning Leaky-Wave Antenna with Circular Polarization for mmWave Application |
| title_sort | fixed frequency beam scanning leaky wave antenna with circular polarization for mmwave application |
| topic | circular polarization fixed-frequency beam scanning leaky-wave antenna period-reconfiguration |
| url | https://www.mdpi.com/2304-6732/12/3/274 |
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