{"artifact_id":"L1-239","layer":"L1","title":"Waveguide Modes — dispersion and S-parameter analysis","domain":"Electromagnetics","sub_domain":"Rectangular/coax/photonic waveguide eigenmodes","physics_fingerprint":{"L_DAG":3.0,"title":"Waveguide Modes — dispersion and S-parameter analysis","domain":"Electromagnetics","carrier":"em","primitives":["L.eigenmode_solve","L.propagate","L.S_param_extract","int.frequency"],"sub_domain":"Rectangular/coax/photonic waveguide eigenmodes","noise_model":"gaussian","problem_class":"linear_inverse","solution_space":"modal_fields_and_S_params","difficulty_delta":3,"integration_axis":"frequency","sensing_mechanism":"vna"},"observable_profile":{"metric":"PSNR_dB","regime":"Conditional stability; mismatch parameters dominate at Omega bounds.","secondary":"SSIM"},"size_tiers":{"center_spec":{"omega":{"SNR_dB":40,"N_freqs":401,"N_modes":5,"dim_error":0.0,"freq_GHz_max":40,"permittivity_error":0.0,"conductor_loss_error":0.0},"input_format":"measurement_only","problem_class":"waveguide","forward_operator":"waveguide_forward","epsilon_fn_center":"28.0"},"omega_bounds":{"SNR_dB":[10,60],"N_freqs":[11,10001],"N_modes":[1,50],"dim_error":[0.0,0.02],"freq_GHz_max":[0.1,500],"permittivity_error":[0.0,0.1],"conductor_loss_error":[0.0,0.3]},"epsilon_bounds":{"psnr_db":[10.0,45.0]},"allowed_problem_classes":["waveguide"],"allowed_omega_dimensions":["N_modes","N_freqs","freq_GHz_max","SNR_dB","dim_error","permittivity_error","conductor_loss_error","dim_error","permittivity_error","conductor_loss_error"],"allowed_forward_operators":["waveguide_forward"]},"hardness_fn":{"type":"epsilon_fn","delta":3,"kappa":200,"metric":"PSNR_dB"},"initiator_dataset":[{"name":"primary","weight":1.0,"ipfs_cid":null,"license_hash":null}],"status":"testnet","staked_pwm":0.0,"chain_hash":"0x2541b4c36b163d361b5e9cb6075371dc9f8930b168893777df997918e12d003c","chain_tx_hash":"0x16f6b3d47dd165786fe984a72ea9c4af02e4698f8e96e47df1e10e43fb8760b4","chain_block":41553988}