K. Atia Abdalmalak, S. Romano, E. Garcia, A. Garcia Lamperez, Francisco Javier Herraiz Martinez, M. Salazar Palma, Daniel Segovia Vargas, José Manuel Serna Puente, F. Tercero, Jose Antonio Lopez Perez, F. Colomer, J. A. López Fernández
{"title":"射电天文学超宽带接收器，覆盖2-14 GHz频段，用于VGOS应用","authors":"K. Atia Abdalmalak, S. Romano, E. Garcia, A. Garcia Lamperez, Francisco Javier Herraiz Martinez, M. Salazar Palma, Daniel Segovia Vargas, José Manuel Serna Puente, F. Tercero, Jose Antonio Lopez Perez, F. Colomer, J. A. López Fernández","doi":"10.1109/EUCAP.2016.7481889","DOIUrl":null,"url":null,"abstract":"The requirements for the VGOS (VLBI Global Observation System) [1] are: feed system covering the 2 to 14 GHz bandwidth and also working with high efficiency (> 50%). Universidad Carlos III de Madrid has developed a new topology to cover them. The new receiver topology is based on a log-spiral antenna printed on a conical surface. Two interesting characteristics are presented: the first one is the dual circular polarization compared with the dual linear polarization recorded in the state of the art [2]. The other comes from the fact that the new topology uses the self-complementary antenna concept, so constant and almost real part of input impedance is obtained, simplifying the design of Low Noise Amplifier (LNA.) An array of four elements is presented for getting all the mentioned requirements. A single ended LNA covering the whole band is also presented together with the proper balun for feeding the antenna.","PeriodicalId":6509,"journal":{"name":"2016 10th European Conference on Antennas and Propagation (EuCAP)","volume":"34 1","pages":"1-5"},"PeriodicalIF":0.0000,"publicationDate":"2016-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Radio astronomy ultra wideband receiver covering the 2–14 GHz frequency band for VGOS applications\",\"authors\":\"K. Atia Abdalmalak, S. Romano, E. Garcia, A. Garcia Lamperez, Francisco Javier Herraiz Martinez, M. Salazar Palma, Daniel Segovia Vargas, José Manuel Serna Puente, F. Tercero, Jose Antonio Lopez Perez, F. Colomer, J. A. López Fernández\",\"doi\":\"10.1109/EUCAP.2016.7481889\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The requirements for the VGOS (VLBI Global Observation System) [1] are: feed system covering the 2 to 14 GHz bandwidth and also working with high efficiency (> 50%). Universidad Carlos III de Madrid has developed a new topology to cover them. The new receiver topology is based on a log-spiral antenna printed on a conical surface. Two interesting characteristics are presented: the first one is the dual circular polarization compared with the dual linear polarization recorded in the state of the art [2]. The other comes from the fact that the new topology uses the self-complementary antenna concept, so constant and almost real part of input impedance is obtained, simplifying the design of Low Noise Amplifier (LNA.) An array of four elements is presented for getting all the mentioned requirements. A single ended LNA covering the whole band is also presented together with the proper balun for feeding the antenna.\",\"PeriodicalId\":6509,\"journal\":{\"name\":\"2016 10th European Conference on Antennas and Propagation (EuCAP)\",\"volume\":\"34 1\",\"pages\":\"1-5\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-04-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 10th European Conference on Antennas and Propagation (EuCAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EUCAP.2016.7481889\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 10th European Conference on Antennas and Propagation (EuCAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EUCAP.2016.7481889","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Radio astronomy ultra wideband receiver covering the 2–14 GHz frequency band for VGOS applications
The requirements for the VGOS (VLBI Global Observation System) [1] are: feed system covering the 2 to 14 GHz bandwidth and also working with high efficiency (> 50%). Universidad Carlos III de Madrid has developed a new topology to cover them. The new receiver topology is based on a log-spiral antenna printed on a conical surface. Two interesting characteristics are presented: the first one is the dual circular polarization compared with the dual linear polarization recorded in the state of the art [2]. The other comes from the fact that the new topology uses the self-complementary antenna concept, so constant and almost real part of input impedance is obtained, simplifying the design of Low Noise Amplifier (LNA.) An array of four elements is presented for getting all the mentioned requirements. A single ended LNA covering the whole band is also presented together with the proper balun for feeding the antenna.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
