{"title":"宽带圆极化椭圆贴片天线与阵列设计","authors":"Peng Guo, Xianzheng Zong","doi":"10.1002/mop.70342","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A broadband circularly polarized (CP) 2 × 2 antenna array using elliptical patch antenna elements is designed in this study. The antenna element is composed of four elliptical patches, four metal posts, and a stair-shaped slot. By rotating the elliptical patches and modifying the coupling slot as stair-shaped, a CP magnetoelectric dipole (ME-dipole) antenna is first realized. Moreover, another two elliptical patches are introduced to generate extra CP mode, which enhances the axial-ratio (AR) bandwidth. The designed CP elliptical patch antenna is expanded to a 2 × 2 antenna array which a feeding network using sequential rotation technology is adopted to feed the array. Measured results indicate that the antenna array exhibits an impedance bandwidth (|S<sub>11</sub>| < −10 dB) of 67.6% and a 3 dB AR bandwidth of 59.1% is obtained. Besides, the measured peak gain is 14.14 dBic at the center frequency 5.5 GHz. The excellent performances make it suitable for C-band communication systems which CP radiation is required.</p>\n </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"67 8","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Wideband Circularly Polarized Elliptical Patch Antenna and Array Designs\",\"authors\":\"Peng Guo, Xianzheng Zong\",\"doi\":\"10.1002/mop.70342\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n <p>A broadband circularly polarized (CP) 2 × 2 antenna array using elliptical patch antenna elements is designed in this study. The antenna element is composed of four elliptical patches, four metal posts, and a stair-shaped slot. By rotating the elliptical patches and modifying the coupling slot as stair-shaped, a CP magnetoelectric dipole (ME-dipole) antenna is first realized. Moreover, another two elliptical patches are introduced to generate extra CP mode, which enhances the axial-ratio (AR) bandwidth. The designed CP elliptical patch antenna is expanded to a 2 × 2 antenna array which a feeding network using sequential rotation technology is adopted to feed the array. Measured results indicate that the antenna array exhibits an impedance bandwidth (|S<sub>11</sub>| < −10 dB) of 67.6% and a 3 dB AR bandwidth of 59.1% is obtained. Besides, the measured peak gain is 14.14 dBic at the center frequency 5.5 GHz. The excellent performances make it suitable for C-band communication systems which CP radiation is required.</p>\\n </div>\",\"PeriodicalId\":18562,\"journal\":{\"name\":\"Microwave and Optical Technology Letters\",\"volume\":\"67 8\",\"pages\":\"\"},\"PeriodicalIF\":1.2000,\"publicationDate\":\"2025-08-17\",\"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.70342\",\"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.70342","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}
Wideband Circularly Polarized Elliptical Patch Antenna and Array Designs
A broadband circularly polarized (CP) 2 × 2 antenna array using elliptical patch antenna elements is designed in this study. The antenna element is composed of four elliptical patches, four metal posts, and a stair-shaped slot. By rotating the elliptical patches and modifying the coupling slot as stair-shaped, a CP magnetoelectric dipole (ME-dipole) antenna is first realized. Moreover, another two elliptical patches are introduced to generate extra CP mode, which enhances the axial-ratio (AR) bandwidth. The designed CP elliptical patch antenna is expanded to a 2 × 2 antenna array which a feeding network using sequential rotation technology is adopted to feed the array. Measured results indicate that the antenna array exhibits an impedance bandwidth (|S11| < −10 dB) of 67.6% and a 3 dB AR bandwidth of 59.1% is obtained. Besides, the measured peak gain is 14.14 dBic at the center frequency 5.5 GHz. The excellent performances make it suitable for C-band communication systems which CP radiation is required.
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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