{"id":{"repo_id":"ohiolink","oai_identifier":"oai:etd.ohiolink.edu:wright1358023409"},"canonical_url":"https://search.dev.ndltd.org/etd/ohiolink/oai:etd.ohiolink.edu:wright1358023409","repository":{"repo_id":"ohiolink","name":"OhioLINK","base_url":"https://etd.ohiolink.edu/acprod/odb_etd/ws/oai/oai"},"display":{"title":"Compact Leaky Wave Antenna Using Ferroelectric Materials","abstract":"Leaky wave antenna continuously attracts a lot interests for tuning the radiation direction over a large angle. Various types of leaky wave antenna have been developed since 1940. However, most of these leaky wave antennas suffered from their excessive volume and the required wide range of operating frequency (bandwidth) to achieve a large tuning angle. To circumvent these challenges, research in this thesis is focused on implementation of material (like PZT) with high dielectric constant (k) in a rectangular waveguide leaky wave antenna. Due to the high dielectric constant of PZT ~ 1,900, the propagation wavelength in the waveguide can be dramatically shortened. This allows the leaky wave antenna to be operated at much lower frequency, or to have a significant volume reduction. In addition, using high k material enables bandwidth narrowing. In experiments, 70 degree tuning angle was observed by changing frequency from 2.1217 GHz to 2.235 GHz in a proto-type leaky wave antenna filled with material of . The tuning angle can be further adjusted by the slot length and distance.","abstract_html":"Leaky wave antenna continuously attracts a lot interests for tuning the radiation direction over a large angle. Various types of leaky wave antenna have been developed since 1940. However, most of these leaky wave antennas suffered from their excessive volume and the required wide range of operating frequency (bandwidth) to achieve a large tuning angle. To circumvent these challenges, research in this thesis is focused on implementation of material (like PZT) with high dielectric constant (k) in a rectangular waveguide leaky wave antenna. Due to the high dielectric constant of PZT ~ 1,900, the propagation wavelength in the waveguide can be dramatically shortened. This allows the leaky wave antenna to be operated at much lower frequency, or to have a significant volume reduction. In addition, using high k material enables bandwidth narrowing. In experiments, 70 degree tuning angle was observed by changing frequency from 2.1217 GHz to 2.235 GHz in a proto-type leaky wave antenna filled with material of . The tuning angle can be further adjusted by the slot length and distance.","abstract_has_math":false,"creators":["Jeon, Hyung Min"],"institution":"Wright State University","degree_name":"Master of Science in Engineering (MSEgr)","degree_level":"masters","degree_discipline":"Electrical Engineering","degree_department":null,"school":null,"contributors":["Zhuang, Yan"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012","date_published":"2012","updated_at":"2026-07-24T03:36:39Z","subjects":["Electrical Engineering","\"Leaky Wave Antenna","Feorroelectric\""],"languages":["English"],"rights":["unrestricted","This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws."],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://rave.ohiolink.edu/etdc/view?acc_num=wright1358023409","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Zhuang, Yan"]},{"key":"dc:creator","label":"Author","values":["Jeon, Hyung Min"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012"]},{"key":"dc:publisher","label":"Institution","values":["Wright State University / OhioLINK"]},{"key":"dc:type","label":"Dc Type","values":["Electronic Thesis or Dissertation"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Engineering (MSEgr)"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Wright State University"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electrical Engineering","\"Leaky Wave Antenna","Feorroelectric\""]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["unrestricted","This thesis or dissertation is protected by copyright: all rights reserved. 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Due to the high dielectric constant of PZT ~ 1,900, the propagation wavelength in the waveguide can be dramatically shortened. This allows the leaky wave antenna to be operated at much lower frequency, or to have a significant volume reduction. In addition, using high k material enables bandwidth narrowing. In experiments, 70 degree tuning angle was observed by changing frequency from 2.1217 GHz to 2.235 GHz in a proto-type leaky wave antenna filled with material of . The tuning angle can be further adjusted by the slot length and distance."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf","p.52","2.39 MB"]},{"key":"dc:title","label":"Title","values":["Compact Leaky Wave Antenna Using Ferroelectric Materials"]}]}],"canonical_facts":{"dc:contributor":["Zhuang, Yan"],"dc:creator":["Jeon, Hyung Min"],"dc:date":["2012"],"dc:description":["Leaky wave antenna continuously attracts a lot interests for tuning the radiation direction over a large angle. Various types of leaky wave antenna have been developed since 1940. However, most of these leaky wave antennas suffered from their excessive volume and the required wide range of operating frequency (bandwidth) to achieve a large tuning angle. To circumvent these challenges, research in this thesis is focused on implementation of material (like PZT) with high dielectric constant (k) in a rectangular waveguide leaky wave antenna. Due to the high dielectric constant of PZT ~ 1,900, the propagation wavelength in the waveguide can be dramatically shortened. This allows the leaky wave antenna to be operated at much lower frequency, or to have a significant volume reduction. In addition, using high k material enables bandwidth narrowing. In experiments, 70 degree tuning angle was observed by changing frequency from 2.1217 GHz to 2.235 GHz in a proto-type leaky wave antenna filled with material of . The tuning angle can be further adjusted by the slot length and distance."],"dc:format":["application/pdf","p.52","2.39 MB"],"dc:identifier":["http://rave.ohiolink.edu/etdc/view?acc_num=wright1358023409"],"dc:language":["English"],"dc:publisher":["Wright State University / OhioLINK"],"dc:rights":["unrestricted","This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws."],"dc:subject":["Electrical Engineering","\"Leaky Wave Antenna","Feorroelectric\""],"dc:title":["Compact Leaky Wave Antenna Using Ferroelectric Materials"],"dc:type":["Electronic Thesis or Dissertation"],"thesis:degree_discipline":["Electrical Engineering"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science in Engineering (MSEgr)"],"thesis:institution_name":["Wright State University"]},"updated_at":"2026-07-24T03:36:39Z"}