{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11476835","patent":{"patent_number":"US-11476835","title":"High-frequency filter circuit, high-frequency front end circuit, and communication device","assignee":null,"inventors":[],"filing_date":"2018-11-26T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["H04B","H04B","H04B","H04B"],"num_claims":19,"abstract":"A filter (22A) includes: a series arm circuit (11) that is connected between an input/output terminal (22m) and an input/output terminal (22n); and a parallel arm circuit (12) that is connected between a node (x1), which is on a path that connects the input/output terminal (22m) and the input/output terminal (22n), and ground. The parallel arm circuit (12) includes a parallel arm resonator (22p) and an impedance circuit (13) that is serially connected to the parallel arm resonator (22p). The impedance circuit (13) includes a first impedance element, which is one of an inductor and a capacitor, a second impedance element, which is the other of an inductor and a capacitor, and a switch (22SW) that is serially connected to the second impedance element. A first series circuit (14) comprising of the second impedance element and the switch (22SW) is connected in parallel with the first impedance element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"High-frequency filter circuit, high-frequency front end circuit, and communication device","description":"A filter (22A) includes: a series arm circuit (11) that is connected between an input/output terminal (22m) and an input/output terminal (22n); and a parallel arm circuit (12) that is connected betwee","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11476835","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-11476835","citation_suggestion":"Patentable. \"High-frequency filter circuit, high-frequency front end circuit, and communication device\" (US-11476835). https://patentable.app/patents/US-11476835","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11476835","json":"https://patentable.app/api/llm-context/US-11476835","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:58:56.658Z"}