Enhanced sensitivity of microwave dielectric sensor based on complementary circular spiral resonators (CCSRs) using the BCITL model
Abstract
This paper presents a novel analysis of a dielectric sensor utilizing the bi-characteristic-impedance transmission line (BCITL) model to enhance sensor sensitivity. The microwave sensor employs a complementary circular spiral resonators (CCSRs) to evaluate the dielectric material under test (MUT) when placed on its defected ground plane. The sensor’s performance was investigated using various MUTs. Interestingly, the proposed BCITL model produces three distinct peak frequencies, which exhibit enhanced frequency shifts with variations in the MUT dielectric constant, thereby significantly improving the sensor sensitivity. Experimental results demonstrate strong agreement between numerical simulations and measured data when the sensor is loaded with different MUTs.
Fields of Study & Subjects
Microwave and Dielectric Measurement Techniques
Advanced Research in Systems and Signal Processing
Magneto-Optical Properties and Applications
Publication details
- Journal / source
- Journal of Electromagnetic Waves and Applications
- Publisher
- Informa UK Limited
- Volume
- 40
- Issue
- 7
- Pages
- 1103–1119
- Publication date
- 2 February 2026
- Language
- EN