{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8494455","patent":{"patent_number":"US-8494455","title":"Methods and apparatus for a resonant transmit/receive switch with transformer gate/source coupling","assignee":null,"inventors":[],"filing_date":"2009-11-19T00:00:00.000Z","publication_date":"2013-07-23T00:00:00.000Z","cpc_codes":["H04B"],"num_claims":17,"abstract":"Methods and apparatus for a resonant transmit/receive switch with transformer gate/source coupling. The resonant transmit/receive (T/R) switch includes a switchable inductor having a first inductance value for use in receive (Rx) mode and a second inductance value for use in transmit (Tx) mode. The first inductance value is used for input matching to a low noise amplifier in Rx mode. The second inductance value is selected to resonant with parasitic capacitance of the antenna port to produce a high impedance in Tx mode. In one implementation, the switchable inductor is gate sourced coupled to at least one of first and second inductors of a low noise amplifier (LNA), thereby allowing use of smaller inductors due to the resulting coupling factor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for a resonant transmit/receive switch with transformer gate/source coupling","description":"Methods and apparatus for a resonant transmit/receive switch with transformer gate/source coupling. The resonant transmit/receive (T/R) switch includes a switchable inductor having a first inductance ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8494455","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-8494455","citation_suggestion":"Patentable. \"Methods and apparatus for a resonant transmit/receive switch with transformer gate/source coupling\" (US-8494455). https://patentable.app/patents/US-8494455","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8494455","json":"https://patentable.app/api/llm-context/US-8494455","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:57:06.231Z"}