{"id":{"repo_id":"maynooth","oai_identifier":"oai:mural.maynoothuniversity.ie:7530"},"canonical_url":"https://search.dev.ndltd.org/etd/maynooth/oai:mural.maynoothuniversity.ie:7530","repository":{"repo_id":"maynooth","name":"National University of Ireland - Maynooth","base_url":"http://mural.maynoothuniversity.ie/cgi/oai2"},"display":{"title":"Design and Analysis of Corrugated Conical Horn Antennas with Terahertz Applications","abstract":"The focus of this thesis is the design and analysis of corrugated conical horn antennas for use in the THz region of the electromagnetic spectrum, for the company SWISSto12®. These antennas are designed to work across the industry standard WR frequency bands, as free-space radiators or as part of a larger quasi-optical network. The main analysis tools used in this work were the in-house mode-matching code, SCATTER, and the commercially available CST: Microwave Studio, which makes use of the finite integration technique. A version of SCATTER which incorporated creation of a corrugated horn antenna’s geometry from user chosen inputs was used to perform parametric sweep analysis when designing the horn antennas. The main design stages were (1) a rectangular to circular transition from a WR rectangular waveguide to a circular waveguide input, (2) a circular smooth-walled to corrugated transition and (3) a transition from a small diameter corrugated waveguide to either a large diameter corrugated waveguide or to free-space. Several styles were examined for the various design stages; the choice of style for the final designs was influenced not only by their performance but also by manufacturing feasibility and cost. Overall, nine individual designs for the WR-1.0. WR-1.5, WR-3.4, WR-5.1, WR-6.5, WR-6.5+, WR-10 and WR-10+ bands have been completed to meet the criteria set by SWISSto12; two of these designs have been manufactured and tested and the results from the measurements performed are presented here.","abstract_html":"The focus of this thesis is the design and analysis of corrugated conical horn antennas for use in the THz region of the electromagnetic spectrum, for the company SWISSto12®. These antennas are designed to work across the industry standard WR frequency bands, as free-space radiators or as part of a larger quasi-optical network. The main analysis tools used in this work were the in-house mode-matching code, SCATTER, and the commercially available CST: Microwave Studio, which makes use of the finite integration technique. A version of SCATTER which incorporated creation of a corrugated horn antenna’s geometry from user chosen inputs was used to perform parametric sweep analysis when designing the horn antennas. The main design stages were (1) a rectangular to circular transition from a WR rectangular waveguide to a circular waveguide input, (2) a circular smooth-walled to corrugated transition and (3) a transition from a small diameter corrugated waveguide to either a large diameter corrugated waveguide or to free-space. Several styles were examined for the various design stages; the choice of style for the final designs was influenced not only by their performance but also by manufacturing feasibility and cost. Overall, nine individual designs for the WR-1.0. WR-1.5, WR-3.4, WR-5.1, WR-6.5, WR-6.5+, WR-10 and WR-10+ bands have been completed to meet the criteria set by SWISSto12; two of these designs have been manufactured and tested and the results from the measurements performed are presented here.","abstract_has_math":false,"creators":["Cahill, Fiachra"],"institution":"National University of Ireland Maynooth","degree_name":null,"degree_level":"masters","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015","date_published":"2015","updated_at":"2026-07-24T03:02:54Z","subjects":[],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Cahill, Fiachra"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015"]},{"key":"dc:date.issued","label":"Date","values":["2015"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["National University of Ireland Maynooth"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://mural.maynoothuniversity.ie/id/eprint/7530/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["masters"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://mural.maynoothuniversity.ie/id/eprint/7530/1/Fiachra_Cahill_MScThesis.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The focus of this thesis is the design and analysis of corrugated conical horn antennas for use in the THz region of the electromagnetic spectrum, for the company SWISSto12®. These antennas are designed to work across the industry standard WR frequency bands, as free-space radiators or as part of a larger quasi-optical network. The main analysis tools used in this work were the in-house mode-matching code, SCATTER, and the commercially available CST: Microwave Studio, which makes use of the finite integration technique. A version of SCATTER which incorporated creation of a corrugated horn antenna’s geometry from user chosen inputs was used to perform parametric sweep analysis when designing the horn antennas. The main design stages were (1) a rectangular to circular transition from a WR rectangular waveguide to a circular waveguide input, (2) a circular smooth-walled to corrugated transition and (3) a transition from a small diameter corrugated waveguide to either a large diameter corrugated waveguide or to free-space. Several styles were examined for the various design stages; the choice of style for the final designs was influenced not only by their performance but also by manufacturing feasibility and cost. Overall, nine individual designs for the WR-1.0. WR-1.5, WR-3.4, WR-5.1, WR-6.5, WR-6.5+, WR-10 and WR-10+ bands have been completed to meet the criteria set by SWISSto12; two of these designs have been manufactured and tested and the results from the measurements performed are presented here."]},{"key":"dc:format","label":"Dc Format","values":["text"]},{"key":"dc:title","label":"Title","values":["Design and Analysis of Corrugated Conical Horn Antennas with Terahertz Applications"]}]}],"canonical_facts":{"dc:creator":["Cahill, Fiachra"],"dc:date":["2015"],"dc:date.issued":["2015"],"dc:description.abstract":["The focus of this thesis is the design and analysis of corrugated conical horn antennas for use in the THz region of the electromagnetic spectrum, for the company SWISSto12®. These antennas are designed to work across the industry standard WR frequency bands, as free-space radiators or as part of a larger quasi-optical network. The main analysis tools used in this work were the in-house mode-matching code, SCATTER, and the commercially available CST: Microwave Studio, which makes use of the finite integration technique. A version of SCATTER which incorporated creation of a corrugated horn antenna’s geometry from user chosen inputs was used to perform parametric sweep analysis when designing the horn antennas. The main design stages were (1) a rectangular to circular transition from a WR rectangular waveguide to a circular waveguide input, (2) a circular smooth-walled to corrugated transition and (3) a transition from a small diameter corrugated waveguide to either a large diameter corrugated waveguide or to free-space. Several styles were examined for the various design stages; the choice of style for the final designs was influenced not only by their performance but also by manufacturing feasibility and cost. Overall, nine individual designs for the WR-1.0. WR-1.5, WR-3.4, WR-5.1, WR-6.5, WR-6.5+, WR-10 and WR-10+ bands have been completed to meet the criteria set by SWISSto12; two of these designs have been manufactured and tested and the results from the measurements performed are presented here."],"dc:format":["text"],"dc:identifier.uri":["https://mural.maynoothuniversity.ie/id/eprint/7530/1/Fiachra_Cahill_MScThesis.pdf"],"dc:language":["en"],"dc:publisher.institution":["National University of Ireland Maynooth"],"dc:relation.isreferencedby":["https://mural.maynoothuniversity.ie/id/eprint/7530/"],"dc:title":["Design and Analysis of Corrugated Conical Horn Antennas with Terahertz Applications"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["masters"]},"updated_at":"2026-07-24T03:02:54Z"}