{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11489514","patent":{"patent_number":"US-11489514","title":"Radio-frequency filter, multiplexer, radio-frequency front-end circuit, and communication device","assignee":null,"inventors":[],"filing_date":"2020-01-03T00:00:00.000Z","publication_date":"2022-11-01T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":20,"abstract":"A radio-frequency filter includes a series-arm circuit on a circuit path that connects a first input/output terminal and a second input/output terminal. A parallel-arm circuit is connected to a node on the path and ground. The series-arm circuit includes a first impedance element, a first switch element connected to the first impedance element, and a series-arm resonator connected in parallel to the first impedance element and the first switch element. The parallel-arm circuit includes a first parallel-arm resonator, and a first switch circuit connected in series to the first parallel-arm resonator, the first switch circuit includes a second switch element. The first and second switch elements and the second switch elements include one or more transistors, and a gate width of the transistors included in the second switch element is larger than that of at least one of the transistors included in the first switch element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Radio-frequency filter, multiplexer, radio-frequency front-end circuit, and communication device","description":"A radio-frequency filter includes a series-arm circuit on a circuit path that connects a first input/output terminal and a second input/output terminal. A parallel-arm circuit is connected to a node o","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11489514","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11489514","citation_suggestion":"Patentable. \"Radio-frequency filter, multiplexer, radio-frequency front-end circuit, and communication device\" (US-11489514). https://patentable.app/patents/US-11489514","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11489514","json":"https://patentable.app/api/llm-context/US-11489514","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:25:26.232Z"}