{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9780735","patent":{"patent_number":"US-9780735","title":"High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus","assignee":null,"inventors":[],"filing_date":"2017-03-29T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H04B","H04B"],"num_claims":13,"abstract":"A high-frequency signal amplifier circuit is used in a front-end circuit configured to propagate a high-frequency transmission signal and a high-frequency reception signal, and includes an amplifier transistor configured to amplify the high-frequency transmission signal; a bias circuit configured to supply a bias to a signal input end of the amplifier transistor; and a ferrite bead, one end of which is connected to a bias output end of the bias circuit and the other end of which is connected to the signal input end of the amplifier transistor, having characteristics in which impedance in a difference frequency band between the high-frequency transmission signal and the high-frequency reception signal is higher than impedance in DC."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus","description":"A high-frequency signal amplifier circuit is used in a front-end circuit configured to propagate a high-frequency transmission signal and a high-frequency reception signal, and includes an amplifier t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9780735","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-9780735","citation_suggestion":"Patentable. \"High-frequency signal amplifier circuit, power amplifier module, front-end circuit, and communication apparatus\" (US-9780735). https://patentable.app/patents/US-9780735","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9780735","json":"https://patentable.app/api/llm-context/US-9780735","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:00:00.270Z"}