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Information × Registration Number 0225U004600, (0125U001688) , R & D reports Title 3D Metamaterials for Energy Harvesting and Electromagnetic Sensing popup.stage_title Розроблення та тестування діелектричної резонаторної ректени з метаматеріальними властивостями для збору енергії радіочастотних випромінювань та електромагнітних сенсорів Head Ilchenko Mykhailo Yu., Доктор технічних наук Registration Date 13-12-2025 Organization National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute» popup.description1 Development of dielectric resonator antennas based on 3D metamaterial cells formed by a combination of dielectric and microstrip resonators popup.description2 In 2025, using the CST Microwave Studio CAD, topologies were developed and simulation modeling of two dielectric resonator antenna (DRA) designs was performed for their further use as part of the rectenna: 1) an antenna based on a combination of a microstrip quadrature hybrid bridge and a rectangular dielectric resonator (QBR+DR); 2) an antenna based on a waveguide in a dielectric substrate (SIW) and a dielectric resonator (SIW+DR). The following modeling results were obtained or the QBR+DR antenna: 1) the frequency response of the reflection coefficient S11, which demonstrates good matching (S11 =-10 dB) at the antenna operating frequency of 2.45 GHz; 2) the frequency response of the isolation coefficient (decoupling) S41 between port 1 and 4 inside the quadrature bridge, which directly affects the phase balance and purity of the excitation of the dielectric resonator modes; 3) the distribution of the magnetic (H) field strength at a frequency of 2.45 GHz, the small value of which in port 4 is additional confirmation of good isolation between ports 1 and 4 of the QBR of such an antenna; 4) the antenna directivity diagrams (DSA), which showed that the achievable antenna gain at a frequency of 2.45 GHz is 5.4 dBi, and the width of the DSA main lobe at the -3 dB level is 69° and 197° in the E-plane and H-plane, respectively. The following results were obtained for the SIW+DR antenna: 1) the frequency response of the reflection coefficient S11, which characterizes the degree of matching of the SIW+DR type structure with the power line and is equal to about -10.5 dB at the operating frequency of 2.45 GHz; 2) the achievable gain of the SIW+DR type antenna at a frequency of 2.45 GHz, which is equal to 5.25 dBi. In this case, the width of the main lobe of the DSA at the level of -3 dB is 101° and 186° in the E- and H-planes, respectively. Also, for both types of antennas, a scheme for matching output impedance of the antenna with the input impedance of the rectifier. Product Description popup.authors Olexander V. Zakharov Rina L. Novohrudska Tetiana O. Plutenko Oleh F. Krylach Olexander P. Zhivkov Oleksandr P. Fedorchuk Hlib L. Avdieienko Oleh I. Vyunov Anatolii Н. Bilous popup.nrat_date 2025-12-13 Close