{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:V42KYGBKEJVH3MF23RTXF2RAIR","short_pith_number":"pith:V42KYGBK","schema_version":"1.0","canonical_sha256":"af34ac182a226a7db0badc6772ea20445666fae43fd32779f0737fc2dca43185","source":{"kind":"arxiv","id":"2502.17864","version":1},"attestation_state":"computed","paper":{"title":"Beamforming with hybrid reconfigurable parasitic antenna arrays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Harish Viswanathan, Jinfeng Du, Miguel Rodrigo Castellanos, Nitish Vikas Deshpande, Robert W. Heath Jr, Saeed R. Khosravirad","submitted_at":"2025-02-25T05:28:17Z","abstract_excerpt":"A parasitic reconfigurable antenna array is a low-power approach for beamforming using passive tunable elements. Prior work on reconfigurable antennas in communication theory is based on ideal radiation pattern abstractions. It does not address the problem of physical realizability. Beamforming with parasitic elements is inherently difficult because mutual coupling creates non-linearity in the beamforming gain objective. We develop a multi-port circuit-theoretic model of the hybrid array with parasitic elements and antennas with active RF chain validated through electromagnetic simulations wit"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2502.17864","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"eess.SP","submitted_at":"2025-02-25T05:28:17Z","cross_cats_sorted":[],"title_canon_sha256":"609bb48ed27c136a026abf1257774d068bb18ca93e26021af1facafbf206b8b0","abstract_canon_sha256":"0b53f1f0d943ed28273ae77b08da611bc74d8f4d5ae8fadb19d7a5e7f9fda370"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:19:45.185830Z","signature_b64":"xj8/zSyjLLLhBa2rVLvWB36Czg81crH6TMmZsZRqNa4wXQVP+jJ92+HVFalNxPlpSpg3t+bAHVMCMbe1/PwBCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af34ac182a226a7db0badc6772ea20445666fae43fd32779f0737fc2dca43185","last_reissued_at":"2026-07-05T10:19:45.185410Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:19:45.185410Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Beamforming with hybrid reconfigurable parasitic antenna arrays","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Harish Viswanathan, Jinfeng Du, Miguel Rodrigo Castellanos, Nitish Vikas Deshpande, Robert W. Heath Jr, Saeed R. Khosravirad","submitted_at":"2025-02-25T05:28:17Z","abstract_excerpt":"A parasitic reconfigurable antenna array is a low-power approach for beamforming using passive tunable elements. Prior work on reconfigurable antennas in communication theory is based on ideal radiation pattern abstractions. It does not address the problem of physical realizability. Beamforming with parasitic elements is inherently difficult because mutual coupling creates non-linearity in the beamforming gain objective. We develop a multi-port circuit-theoretic model of the hybrid array with parasitic elements and antennas with active RF chain validated through electromagnetic simulations wit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.17864","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.17864/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"2502.17864","created_at":"2026-07-05T10:19:45.185468+00:00"},{"alias_kind":"arxiv_version","alias_value":"2502.17864v1","created_at":"2026-07-05T10:19:45.185468+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.17864","created_at":"2026-07-05T10:19:45.185468+00:00"},{"alias_kind":"pith_short_12","alias_value":"V42KYGBKEJVH","created_at":"2026-07-05T10:19:45.185468+00:00"},{"alias_kind":"pith_short_16","alias_value":"V42KYGBKEJVH3MF2","created_at":"2026-07-05T10:19:45.185468+00:00"},{"alias_kind":"pith_short_8","alias_value":"V42KYGBK","created_at":"2026-07-05T10:19:45.185468+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":2,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.08624","citing_title":"Parasitic MIMO Beamforming for Multi-Active Multi-Parasitic Antenna Arrays with Binary Control","ref_index":13,"is_internal_anchor":true},{"citing_arxiv_id":"2507.15074","citing_title":"Reconfigurable Antenna Arrays With Tunable Loads: Expanding Solution Space via Coupling Control","ref_index":7,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR","json":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR.json","graph_json":"https://pith.science/api/pith-number/V42KYGBKEJVH3MF23RTXF2RAIR/graph.json","events_json":"https://pith.science/api/pith-number/V42KYGBKEJVH3MF23RTXF2RAIR/events.json","paper":"https://pith.science/paper/V42KYGBK"},"agent_actions":{"view_html":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR","download_json":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR.json","view_paper":"https://pith.science/paper/V42KYGBK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2502.17864&json=true","fetch_graph":"https://pith.science/api/pith-number/V42KYGBKEJVH3MF23RTXF2RAIR/graph.json","fetch_events":"https://pith.science/api/pith-number/V42KYGBKEJVH3MF23RTXF2RAIR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR/action/storage_attestation","attest_author":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR/action/author_attestation","sign_citation":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR/action/citation_signature","submit_replication":"https://pith.science/pith/V42KYGBKEJVH3MF23RTXF2RAIR/action/replication_record"}},"created_at":"2026-07-05T10:19:45.185468+00:00","updated_at":"2026-07-05T10:19:45.185468+00:00"}