{"title":"宽带高效折叠式发射阵列天线","authors":"Meizi Wu, Wei Rao, Lu Guo","doi":"10.1002/mop.70006","DOIUrl":null,"url":null,"abstract":"<p>A folded transmitarray antenna (FTA) with low profile, high efficiency, and broadband is proposed. The transmission unit-cell is composed of two metallic layers of bowknot-shaped patches printed on a single layer of dielectric substrate. By regulating bowknot-shaped patches' dimension and mirroring elements' top and bottom layers, 360° phase swing and high transmission magnitudes are obtained. With the introduction of a reflectarray integrated with a feed horn in the middle, an FTA is designed based on ray tracing principle, leading to a profile reduced to 1/3 of the focal distance of traditional transmitarrays. According to testing results, 15.5% 1 dB gain bandwidth, 30.9% 3 dB gain bandwidth, and 42.3% peak aperture efficiency are achieved. These outstanding performances demonstrate its good potential for a wide range of high-gain applications.</p>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"66 10","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A broadband and high-efficiency folded transmitarray antenna\",\"authors\":\"Meizi Wu, Wei Rao, Lu Guo\",\"doi\":\"10.1002/mop.70006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A folded transmitarray antenna (FTA) with low profile, high efficiency, and broadband is proposed. The transmission unit-cell is composed of two metallic layers of bowknot-shaped patches printed on a single layer of dielectric substrate. By regulating bowknot-shaped patches' dimension and mirroring elements' top and bottom layers, 360° phase swing and high transmission magnitudes are obtained. With the introduction of a reflectarray integrated with a feed horn in the middle, an FTA is designed based on ray tracing principle, leading to a profile reduced to 1/3 of the focal distance of traditional transmitarrays. According to testing results, 15.5% 1 dB gain bandwidth, 30.9% 3 dB gain bandwidth, and 42.3% peak aperture efficiency are achieved. These outstanding performances demonstrate its good potential for a wide range of high-gain applications.</p>\",\"PeriodicalId\":18562,\"journal\":{\"name\":\"Microwave and Optical Technology Letters\",\"volume\":\"66 10\",\"pages\":\"\"},\"PeriodicalIF\":1.0000,\"publicationDate\":\"2024-10-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microwave and Optical Technology Letters\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/mop.70006\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.70006","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
摘要
本文提出了一种具有低剖面、高效率和宽带特性的折叠式传输阵列天线（FTA）。其传输单元单元由印制在单层电介质基板上的两层弓形金属贴片组成。通过调节弓形贴片的尺寸和镜像元件的顶层和底层，可获得 360° 相位摆动和高传输幅值。由于引入了中间集成有馈电喇叭的反射阵列，根据光线跟踪原理设计出了一种 FTA，从而将外形尺寸缩小到传统发射阵列焦距的 1/3。根据测试结果，1 dB 增益带宽达到 15.5%，3 dB 增益带宽达到 30.9%，峰值孔径效率达到 42.3%。这些出色的性能表明，它具有广泛的高增益应用潜力。
A broadband and high-efficiency folded transmitarray antenna
A folded transmitarray antenna (FTA) with low profile, high efficiency, and broadband is proposed. The transmission unit-cell is composed of two metallic layers of bowknot-shaped patches printed on a single layer of dielectric substrate. By regulating bowknot-shaped patches' dimension and mirroring elements' top and bottom layers, 360° phase swing and high transmission magnitudes are obtained. With the introduction of a reflectarray integrated with a feed horn in the middle, an FTA is designed based on ray tracing principle, leading to a profile reduced to 1/3 of the focal distance of traditional transmitarrays. According to testing results, 15.5% 1 dB gain bandwidth, 30.9% 3 dB gain bandwidth, and 42.3% peak aperture efficiency are achieved. These outstanding performances demonstrate its good potential for a wide range of high-gain applications.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
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