Core Concepts
3D-printed dielectric image lines offer low-loss transmission for subTHz applications, providing cost-effective and flexible solutions.
Abstract
Abstract:
3D-printed dielectric image lines for low-loss subTHz applications.
Copper substrate for robust routing and mechanical stability.
Mode-converter for easy integration and characterization.
Broadband match of at least 20 dB with minimal losses.
Multi-line characterization for de-embedding propagation parameters.
Introduction:
SubTHz-FMCW radar applications for high-resolution imaging.
Transmission loss at high frequencies hinders conventional planar transmission lines.
Dielectric image lines enable low-loss subTHz distribution networks.
Image Line Topology:
Dielectric image lines enhance routing and stability with a conductive sheet.
Metal surface acts as a polarization anchor and simplifies mode conversion.
Dielectric material, Cyclic Olefin Copolymer, chosen for low dissipation factor.
Measurement Setup:
Design of mode-converter for flexible mounting and excitation of DIL.
ZVA-Z220 frequency converters used for signal generation.
Back-to-back setup for thorough characterization of DILs.
Results:
S-parameter measurements show low-loss characteristics of DILs.
Excellent matching and low insertion loss for frequencies up to 220 GHz.
Multi-line measurements for extraction of propagation parameters.
Conclusion:
DILs suitable for subTHz networks and chip-to-chip interconnects.
Bending radii influence insertion loss due to parasitic radiation.
DIL geometry deviations have minor impact on transmission quality.
Stats
전체 주파수 대역에서 최소 20 dB의 광대역 일치
최소 0.35 dB/cm의 손실
3 mm에서 90 mm까지 다양한 길이의 DIL을 사용한 다중 라인 측정
Quotes
"Dielectric image lines enable low-loss subTHz distribution networks."
"DILs suitable for subTHz networks and chip-to-chip interconnects."