{"title":"A Full-Duplex Dual Wideband Horn Antenna With High Port-to-Port Isolation","authors":"Yulin Tao;Changjiang Deng;Xiaowei Cao;Kamal Sarabandi","doi":"10.1109/TAP.2024.3467693","DOIUrl":null,"url":null,"abstract":"A highly isolated dual-band full-duplex antenna subsystem operating at 8–18 GHz (X-/Ku-band) and 32–40 GHz (Ka-band) is presented. Each band includes two conical horn antennas which are juxtaposed side-by-side. Dual circular polarization (CP) is generated by using a 3 dB coupler in the lower band and a septum polarizer in the upper band. The two pairs of horns are embedded within and alongside a metallic cylinder with an edge-to-edge distance of 240 mm for the X-/Ku-band and 75 mm for the Ka-band. In order to increase the Tx-Rx isolation, three sets of annular corrugations are etched on the side wall of the cylindrical cavity and conformal absorbers are added around the horns in X-/Ku-band. A prototype antenna system is fabricated and measured. The measured Tx-Rx isolation is greater than 80.9 dB in the X-/Ku-band and 71.6 dB in the Ka-band. The measured gain in the two bands is higher than 14.3, and 20.1 dBiC, respectively.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"72 11","pages":"8876-8881"},"PeriodicalIF":4.6000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Antennas and Propagation","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10702506/","RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
A highly isolated dual-band full-duplex antenna subsystem operating at 8–18 GHz (X-/Ku-band) and 32–40 GHz (Ka-band) is presented. Each band includes two conical horn antennas which are juxtaposed side-by-side. Dual circular polarization (CP) is generated by using a 3 dB coupler in the lower band and a septum polarizer in the upper band. The two pairs of horns are embedded within and alongside a metallic cylinder with an edge-to-edge distance of 240 mm for the X-/Ku-band and 75 mm for the Ka-band. In order to increase the Tx-Rx isolation, three sets of annular corrugations are etched on the side wall of the cylindrical cavity and conformal absorbers are added around the horns in X-/Ku-band. A prototype antenna system is fabricated and measured. The measured Tx-Rx isolation is greater than 80.9 dB in the X-/Ku-band and 71.6 dB in the Ka-band. The measured gain in the two bands is higher than 14.3, and 20.1 dBiC, respectively.
期刊介绍：
IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques
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