US 12,345,662 B2
Complex permittivity estimating apparatus and method
YunSu Kang, Suwon-si (KR)
Assigned to HL Klemove Corp., Incheon (KR)
Filed by HL Klemove Corp., Incheon (KR)
Filed on Jul. 5, 2022, as Appl. No. 17/857,272.
Claims priority of application No. 10-2021-0097114 (KR), filed on Jul. 23, 2021.
Prior Publication US 2023/0024551 A1, Jan. 26, 2023
Int. Cl. G01N 22/00 (2006.01); D01D 5/098 (2006.01)
CPC G01N 22/00 (2013.01) [D01D 5/098 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A complex permittivity estimating apparatus comprising:
a receiver that irradiates a transmission signal such that the transmission signal is reflected on a test dielectric or transmitted through the test dielectric and receives a reflected wave and a transmitted wave for the test dielectric;
a determiner that determines simulation data from a simulation table set in advance based on information extracted from at least one of the reflected wave or the transmitted wave; and
an estimator that estimates complex permittivity for the test dielectric based on the determined simulation data,
wherein the determiner determines the simulation data by extracting reflected wave magnitude information, transmitted wave magnitude information, and transmitted wave phase information from the reflected wave and the transmitted wave and comparing the reflected wave magnitude information, the transmitted wave guide magnitude information, and the transmitted wave phase information that are extracted with information included in the simulation table.