{"paper":{"title":"Compact Dual-Polarization Schottky Barrier Diode Receivers for Submillimeter Wave Remote Sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Co-optimized orthogonal E-field probes and subharmonic Schottky mixers deliver compact dual-polarization receivers with up to 34 dB isolation and 833 K noise temperature.","cross_cats":["physics.app-ph"],"primary_cat":"physics.ins-det","authors_text":"Anders Emrich, Jan Stake, Olivier Auriacombe, Peter J. Sobis, Vladimir Drakinskiy","submitted_at":"2026-05-18T12:47:50Z","abstract_excerpt":"Dual-polarization heterodyne receivers operating at 325 GHz, 424 GHz, and 650 GHz at room temperature are presented. Polarimetric measurements are enabled by two orthogonal open-ended E-field probes, co-optimized and integrated with two subharmonic GaAs Schottky-barrier diode mixers. The down-converted signals (IF) are amplified using low-noise InP HEMT amplifiers integrated into the receiver module, along with IF matching networks, dc-bias boards, a shared local oscillator (LO) distribution network, and a single smooth-walled, conical, spline-horn antenna. Maximum cross-polarization isolation"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"the integrated dualpolarization receiver topology achieves excellent sensitivity in a highly compact package, offering an efficient and scalable solution for polarimetric applications in submillimeter-wave remote sensing","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The co-optimization and integration of the two orthogonal E-field probes with the subharmonic mixers does not introduce unaccounted losses, coupling, or fabrication variations that would degrade the reported isolation and noise performance in operational environments. (Abstract description of co-optimized integration and measured results)","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Compact dual-polarization Schottky barrier diode receivers at 315-650 GHz achieve up to 34 dB cross-polarization isolation, DSB noise temperatures down to 833 K, and Allan stability over 10 s in a single module with shared components.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Co-optimized orthogonal E-field probes and subharmonic Schottky mixers deliver compact dual-polarization receivers with up to 34 dB isolation and 833 K noise temperature.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"ca0dca1a8e0a92ede53bbbbdaed6a67d4f4073f9d58927c42322fa470ecae6a9"},"source":{"id":"2605.18330","kind":"arxiv","version":1},"verdict":{"id":"679080f8-6374-419d-bf28-6fd3c4ad14f6","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T23:55:30.022552Z","strongest_claim":"the integrated dualpolarization receiver topology achieves excellent sensitivity in a highly compact package, offering an efficient and scalable solution for polarimetric applications in submillimeter-wave remote sensing","one_line_summary":"Compact dual-polarization Schottky barrier diode receivers at 315-650 GHz achieve up to 34 dB cross-polarization isolation, DSB noise temperatures down to 833 K, and Allan stability over 10 s in a single module with shared components.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The co-optimization and integration of the two orthogonal E-field probes with the subharmonic mixers does not introduce unaccounted losses, coupling, or fabrication variations that would degrade the reported isolation and noise performance in operational environments. 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