{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/92680"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/92680","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Design and characterization of a UHF diplexer/antenna combination","abstract":"Wireless communication systems are important in modern day life. Applications of wireless communication systems are used everywhere around the world, such as cell phones, wireless entertainments, satellites and navigation services. Because of the high volume usage of various wireless signals' spectra, it is desired to design systems that can accept the frequencies of multiple signals. A combination of antenna and diplexers can achieve such functionality. With antennas operating in dual frequency and diplexers which separate the signals, dual-frequency signals can be effectively transferred through the wireless communication systems simultaneously. In this thesis, we simulate and characterize the behavior of antenna and diplexer functioning in dual frequency. For the antenna, a mathematical analysis and a circuit model analysis were conducted to replicate its behavior. On the other hand, several circuit designs and simulations have been performed for diplexers. Moreover, an initial implementation of a single-order diplexer is also discussed. After the measurement, we found reasonable results for the functionality of a single-order diplexer. We believe that this first step gives us a correct route to our final implementation goal. In the future, more implementation tasks can also be discussed. In addition to the implementation of a first-order diplexer, higher-order diplexers constructed on printed circuited board (PCB) can also be developed. Moreover, an implementation of a combinational matching network construction between antenna and diplexer can also be discussed.","abstract_html":"Wireless communication systems are important in modern day life. Applications of wireless communication systems are used everywhere around the world, such as cell phones, wireless entertainments, satellites and navigation services. Because of the high volume usage of various wireless signals' spectra, it is desired to design systems that can accept the frequencies of multiple signals. A combination of antenna and diplexers can achieve such functionality. With antennas operating in dual frequency and diplexers which separate the signals, dual-frequency signals can be effectively transferred through the wireless communication systems simultaneously. In this thesis, we simulate and characterize the behavior of antenna and diplexer functioning in dual frequency. For the antenna, a mathematical analysis and a circuit model analysis were conducted to replicate its behavior. On the other hand, several circuit designs and simulations have been performed for diplexers. Moreover, an initial implementation of a single-order diplexer is also discussed. After the measurement, we found reasonable results for the functionality of a single-order diplexer. We believe that this first step gives us a correct route to our final implementation goal. In the future, more implementation tasks can also be discussed. In addition to the implementation of a first-order diplexer, higher-order diplexers constructed on printed circuited board (PCB) can also be developed. Moreover, an implementation of a combinational matching network construction between antenna and diplexer can also be discussed.","abstract_has_math":false,"creators":["Zheng, Zhiyuan"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Minin, Serge"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-11-10T17:49:15Z","date_published":"2016-11-10T17:49:15Z","updated_at":"2026-07-22T22:26:35Z","subjects":["Microwave circuit design","Wireless communication"],"languages":["en"],"rights":["Copyright 2016 Zhiyuan Zheng"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/92680","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Minin, Serge"]},{"key":"dc:creator","label":"Author","values":["Zheng, Zhiyuan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2016-11-10T17:49:15Z","2016-07-22","2016-08"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Microwave circuit design","Wireless communication"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2016 Zhiyuan Zheng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/92680"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Wireless communication systems are important in modern day life. Applications of wireless communication systems are used everywhere around the world, such as cell phones, wireless entertainments, satellites and navigation services. Because of the high volume usage of various wireless signals' spectra, it is desired to design systems that can accept the frequencies of multiple signals. A combination of antenna and diplexers can achieve such functionality. With antennas operating in dual frequency and diplexers which separate the signals, dual-frequency signals can be effectively transferred through the wireless communication systems simultaneously. In this thesis, we simulate and characterize the behavior of antenna and diplexer functioning in dual frequency. For the antenna, a mathematical analysis and a circuit model analysis were conducted to replicate its behavior. On the other hand, several circuit designs and simulations have been performed for diplexers. Moreover, an initial implementation of a single-order diplexer is also discussed. After the measurement, we found reasonable results for the functionality of a single-order diplexer. We believe that this first step gives us a correct route to our final implementation goal. In the future, more implementation tasks can also be discussed. In addition to the implementation of a first-order diplexer, higher-order diplexers constructed on printed circuited board (PCB) can also be developed. Moreover, an implementation of a combinational matching network construction between antenna and diplexer can also be discussed.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2016-11-09 without embargo terms","The student, Zhiyuan Zheng, accepted the attached license on 2016-07-21 at 16:59.","The student, Zhiyuan Zheng, submitted this Thesis for approval on 2016-07-21 at 17:09.","This Thesis was approved for publication on 2016-07-22 at 09:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #10066 on 2016-11-09 at 10:26:07","Made available in DSpace on 2016-11-10T17:49:15Z (GMT). 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A combination of antenna and diplexers can achieve such functionality. With antennas operating in dual frequency and diplexers which separate the signals, dual-frequency signals can be effectively transferred through the wireless communication systems simultaneously. In this thesis, we simulate and characterize the behavior of antenna and diplexer functioning in dual frequency. For the antenna, a mathematical analysis and a circuit model analysis were conducted to replicate its behavior. On the other hand, several circuit designs and simulations have been performed for diplexers. Moreover, an initial implementation of a single-order diplexer is also discussed. After the measurement, we found reasonable results for the functionality of a single-order diplexer. We believe that this first step gives us a correct route to our final implementation goal. In the future, more implementation tasks can also be discussed. In addition to the implementation of a first-order diplexer, higher-order diplexers constructed on printed circuited board (PCB) can also be developed. Moreover, an implementation of a combinational matching network construction between antenna and diplexer can also be discussed.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2016-11-09 without embargo terms","The student, Zhiyuan Zheng, accepted the attached license on 2016-07-21 at 16:59.","The student, Zhiyuan Zheng, submitted this Thesis for approval on 2016-07-21 at 17:09.","This Thesis was approved for publication on 2016-07-22 at 09:47.","DSpace SAF Submission Ingestion Package generated from Vireo submission #10066 on 2016-11-09 at 10:26:07","Made available in DSpace on 2016-11-10T17:49:15Z (GMT). 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