{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11990666","patent":{"patent_number":"US-11990666","title":"RFID reader/writer antenna device","assignee":null,"inventors":[],"filing_date":"2021-11-02T00:00:00.000Z","publication_date":"2024-05-21T00:00:00.000Z","cpc_codes":["G06K"],"num_claims":19,"abstract":"An RFID reader/writer antenna device is provided that includes a first radiating element, a second radiating element, a third radiating element, baluns, a phase shifter, and a distributor. The radiating elements each comprise conductor patterns with extending directions that are parallel to each other, and used for reading or writing of RFID tags. The distributor connects the first radiating element, the second radiating element, and the third radiating element to a common input/output. The phase shifter causes a feeding phase of the second radiating element and feeding phases of the first radiating element and the third radiating element to have a phase difference of 90°. The baluns perform conversion between a balanced signal and an unbalanced signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"RFID reader/writer antenna device","description":"An RFID reader/writer antenna device is provided that includes a first radiating element, a second radiating element, a third radiating element, baluns, a phase shifter, and a distributor. The radiati","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11990666","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-11990666","citation_suggestion":"Patentable. \"RFID reader/writer antenna device\" (US-11990666). https://patentable.app/patents/US-11990666","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11990666","json":"https://patentable.app/api/llm-context/US-11990666","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:35:19.792Z"}