{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:UOZGTRGMSR2UPLJ5BIQWJEAURQ","short_pith_number":"pith:UOZGTRGM","schema_version":"1.0","canonical_sha256":"a3b269c4cc947547ad3d0a216490148c3fbf962d04e80a0a76188c25cc704376","source":{"kind":"arxiv","id":"1808.04814","version":2},"attestation_state":"computed","paper":{"title":"Automatic Delay Tuning of a Novel Ring Resonator-based Photonic Beamformer for a Transmit Phased Array Antenna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"C. Roeloffzen, C. Taddei, I. Visscher, L. Bliek, M. Verhaegen, R. B. Timens, R. Oldenbeuving, S. Wahls","submitted_at":"2018-08-13T14:04:06Z","abstract_excerpt":"We present a novel photonic beamformer for a fully integrated transmit phased array antenna, together with an automatic procedure for tuning the delays in this system. Such an automatic tuning procedure is required because the large number of actuators makes manual tuning practically impossible. The antenna system is designed for the purpose of broadband aircraft-satellite communication in the Ku-band to provide satellite Internet connections on board the aircraft. The goal of the beamformer is to automatically steer the transmit antenna electronically in the direction of the satellite. This i"},"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":"1808.04814","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2018-08-13T14:04:06Z","cross_cats_sorted":[],"title_canon_sha256":"f2dd2830781ad0e1d51e5ed00216c2cb6b0c013bd02c6e585adf4a93c0cdc91c","abstract_canon_sha256":"63e50e42937b495b3bb8fcfc6c57f247dac2d1e4a6bd49b4118553d74c5d7a1d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:55.939777Z","signature_b64":"lZFiSFhJnhBSM5yD3DHabRQNOvkaEnHtYz+uZHpzsaNvMBCSqsCkHf0tQ9icDnwz7qPJYxhiI8AC2vXDoWIEDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3b269c4cc947547ad3d0a216490148c3fbf962d04e80a0a76188c25cc704376","last_reissued_at":"2026-05-17T23:40:55.938993Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:55.938993Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Automatic Delay Tuning of a Novel Ring Resonator-based Photonic Beamformer for a Transmit Phased Array Antenna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.app-ph","authors_text":"C. Roeloffzen, C. Taddei, I. Visscher, L. Bliek, M. Verhaegen, R. B. Timens, R. Oldenbeuving, S. Wahls","submitted_at":"2018-08-13T14:04:06Z","abstract_excerpt":"We present a novel photonic beamformer for a fully integrated transmit phased array antenna, together with an automatic procedure for tuning the delays in this system. Such an automatic tuning procedure is required because the large number of actuators makes manual tuning practically impossible. The antenna system is designed for the purpose of broadband aircraft-satellite communication in the Ku-band to provide satellite Internet connections on board the aircraft. The goal of the beamformer is to automatically steer the transmit antenna electronically in the direction of the satellite. This i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04814","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1808.04814","created_at":"2026-05-17T23:40:55.939124+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.04814v2","created_at":"2026-05-17T23:40:55.939124+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04814","created_at":"2026-05-17T23:40:55.939124+00:00"},{"alias_kind":"pith_short_12","alias_value":"UOZGTRGMSR2U","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_16","alias_value":"UOZGTRGMSR2UPLJ5","created_at":"2026-05-18T12:32:56.356000+00:00"},{"alias_kind":"pith_short_8","alias_value":"UOZGTRGM","created_at":"2026-05-18T12:32:56.356000+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ","json":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ.json","graph_json":"https://pith.science/api/pith-number/UOZGTRGMSR2UPLJ5BIQWJEAURQ/graph.json","events_json":"https://pith.science/api/pith-number/UOZGTRGMSR2UPLJ5BIQWJEAURQ/events.json","paper":"https://pith.science/paper/UOZGTRGM"},"agent_actions":{"view_html":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ","download_json":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ.json","view_paper":"https://pith.science/paper/UOZGTRGM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.04814&json=true","fetch_graph":"https://pith.science/api/pith-number/UOZGTRGMSR2UPLJ5BIQWJEAURQ/graph.json","fetch_events":"https://pith.science/api/pith-number/UOZGTRGMSR2UPLJ5BIQWJEAURQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ/action/storage_attestation","attest_author":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ/action/author_attestation","sign_citation":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ/action/citation_signature","submit_replication":"https://pith.science/pith/UOZGTRGMSR2UPLJ5BIQWJEAURQ/action/replication_record"}},"created_at":"2026-05-17T23:40:55.939124+00:00","updated_at":"2026-05-17T23:40:55.939124+00:00"}