{"id":"https://openalex.org/keywords/substrate-integrated-waveguide","display_name":"substrate integrated waveguide","description":"A planar electromagnetic waveguide formed within a dielectric substrate using conductive walls, used in microwave and millimeter-wave circuit design.","display_name_alternatives":["SIW","substrate integrated waveguides","substrate integrated rectangular waveguide"],"ids":{"openalex":"https://openalex.org/keywords/substrate-integrated-waveguide","wikidata":"https://www.wikidata.org/wiki/Q96406649"},"primary_topic":{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","score":0.6379,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","score":0.6379,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":0.2578,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"works_count":8668,"cited_by_count":118248,"works_api_url":"https://api.openalex.org/works?filter=keywords.id:keywords/substrate-integrated-waveguide","updated_date":"2026-10-19T04:06:21","created_date":"2026-09-30T00:00:00"}
