{"title":"A Broadband Multilayer Magic-T Using Coupled Microstrip-Slotlines for Monopulse Antenna Systems","authors":"Xiang Zhao, Hongxin Zhao, Shunli Li, Xiaoxing Yin","doi":"10.1109/APS/URSI47566.2021.9704488","DOIUrl":null,"url":null,"abstract":"In this paper, a broadband multilayer planar magic-T using coupled microstrip-slotlines is proposed. Sum and difference function in this design are realized by utilizing the even and odd transmission mode of the coupled microstrip-slotlines. The magic-T is conducive to the miniaturization of monopulse antenna systems by using a 3-layer circuit board structure and reasonable port placement. Simulation results show that the operating frequency range is 1.25-2.52 GHz with return loss higher than 10 dB, while in-band isolation between sum and difference port is greater than 50 dB. It also has amplitude and phase imbalance of less than 0.1 dB and 0.4° respectively.","PeriodicalId":6801,"journal":{"name":"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)","volume":"3 1","pages":"477-478"},"PeriodicalIF":0.0000,"publicationDate":"2021-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS/URSI47566.2021.9704488","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
In this paper, a broadband multilayer planar magic-T using coupled microstrip-slotlines is proposed. Sum and difference function in this design are realized by utilizing the even and odd transmission mode of the coupled microstrip-slotlines. The magic-T is conducive to the miniaturization of monopulse antenna systems by using a 3-layer circuit board structure and reasonable port placement. Simulation results show that the operating frequency range is 1.25-2.52 GHz with return loss higher than 10 dB, while in-band isolation between sum and difference port is greater than 50 dB. It also has amplitude and phase imbalance of less than 0.1 dB and 0.4° respectively.
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