TY - JOUR
T1 - Modeling of mmW and THz Imaging Systems Using Conjugate Field Coupling
AU - Theofanopoulos, Panagiotis C.
AU - Trichopoulos, Georgios
PY - 2017/12/5
Y1 - 2017/12/5
N2 - We propose a novel technique for efficient and robust modeling of multistatic, multi-dimensional, large-format millimeter-wave/terahertz (mmW/THz) imaging systems. The proposed method significantly reduces the necessary computational resources for the design of electrically large systems of multiple sensors that acquire multi-frequency images, such as imaging radars used in 3D mapping. To alleviate the problem, the radiated and scattered fields are individually computed for the sensor and the target, respectively, using full-wave numerical solvers. Afterwards, the fields are properly combined using conjugate field coupling, thus minimizing the necessary computational resources, without compromising solution accuracy. In this letter, the theoretical background of the technique is presented, along with numerical results for beam steering and raster scanning imaging systems.
AB - We propose a novel technique for efficient and robust modeling of multistatic, multi-dimensional, large-format millimeter-wave/terahertz (mmW/THz) imaging systems. The proposed method significantly reduces the necessary computational resources for the design of electrically large systems of multiple sensors that acquire multi-frequency images, such as imaging radars used in 3D mapping. To alleviate the problem, the radiated and scattered fields are individually computed for the sensor and the target, respectively, using full-wave numerical solvers. Afterwards, the fields are properly combined using conjugate field coupling, thus minimizing the necessary computational resources, without compromising solution accuracy. In this letter, the theoretical background of the technique is presented, along with numerical results for beam steering and raster scanning imaging systems.
KW - Apertures
KW - Computational modeling
KW - conjugate field coupling
KW - Couplings
KW - Imaging
KW - imaging
KW - millimeter-wave
KW - Phased arrays
KW - Radar imaging
KW - Sensors
KW - Terahertz
UR - http://www.scopus.com/inward/record.url?scp=85038389298&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85038389298&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2017.2780803
DO - 10.1109/LAWP.2017.2780803
M3 - Article
AN - SCOPUS:85038389298
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
SN - 1536-1225
ER -