Effective Complex Permittivity Measurement of 3D Printed Artificial Dielectric Substrate Based on a Cross Unit Cell
- Resource Type
- Conference
- Authors
- Kadera, Petr; Lacik, Jaroslav
- Source
- 2022 24th International Microwave and Radar Conference (MIKON) Microwave and Radar Conference (MIKON), 2022 24th International. :1-5 Sep, 2022
- Subject
- Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Analytical models
Three-dimensional displays
Anisotropic magnetoresistance
Permittivity measurement
Dielectric substrates
Dielectric loss measurement
Microwave theory and techniques
Dielectric substrate
complex permittivity
material characterization
additive manufacturing
3D printing
resonator
- Language
This paper presents an effective complex permittivity measurement of 3D printed artificial dielectric substrate. Two resonator methods are employed at the frequencies of 7.16 GHz and 7.06 GHz operating with TE 011 and TM 010 modes, respectively, for longitudinal and transversal permittivity component extraction. The measured results for the low permittivity polylactic acid (PLA) material validate the analytical models based on the parallel-plate capacitor networks (PPC) and numerical simulations in CST Studio Suite. The artificial dielectric substrates exhibit the maximum measured anisotropy of 9.15 % for the effective relative permittivity and 58 % for effective tangent loss. This can be useful for novel microwave designs using controlled spatially variant permittivity distribution.