US 12,105,031 B2
Differential dielectric constant sensing system and method
Hattan F. Abutarboush, Madinah (SA); Muhammad Amin, Madinah (SA); Rashad Ramzan, Islamabad (PK); Omar F. Siddiqui, Madinah (SA); Daniyal Ali Sehrai, Peshawar (PK); and Raghied H. Atta, Madinah (SA)
Assigned to Taibah University, Medina (SA)
Filed by Taibah University, Medina (SA)
Filed on Feb. 3, 2023, as Appl. No. 18/164,496.
Prior Publication US 2024/0264093 A1, Aug. 8, 2024
Int. Cl. G01N 22/00 (2006.01)
CPC G01N 22/00 (2013.01) 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a transmission line comprising a rectangular-shaped microstrip;
two U-shaped resonators coupled in a perpendicular position relative to the transmission line, wherein an individual one of the two U-shaped resonators comprises two symmetric and rectangular-shaped body sections with substantially equal width and length, wherein the two U-shaped resonators are placed substantially in a middle of the transmission line and also are in a mirror position relative to the transmission line;
a first region for a reference sample, wherein the first region is coupled to first open stubs of a first U-shaped resonator of the two U-shaped resonators; and
a second region for a sample-under-test, wherein the second region is coupled to second open stubs of a second U-shaped resonator of the two U-shaped resonators.