Dmitry Kozlov
Research Subjects
Research Interests
Dmitry Kozlov has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Alexey Shitvov
Univ. College London (United Kingdom)
1 shared publication - Dmitry Zelenchuk
CWI, Queens University Belfast, Belfast, U.K.
1 shared publication - Irina Munina
Microelectronics and Radio Engineering Department, St. Petersburg Electrotechnical University "LETI", Saint Petersburg, Russia
1 shared publication - Pavel Turalchuk
Saint Petersburg Electrotechnical University
1 shared publication - Vitalii Kirillov
Saint Petersburg Electrotechnical University
1 shared publication
Latest Publications
- Open Access
Characterization of Tiled Architecture for C-Band 1-Bit Beam-Steering Transmitarray
A new implementation of a beam-steering transmitarray is proposed based on the tiled array architecture. Each pixel of the transmitarray is manufactured as a standalone unit which can be hard-wired for specific transmission characteristics. A set of complementary units, providing reciprocal phase-shifts, can be assembled in a prescribed spatial phase-modulation pattern to perform beam steering and beam forming in a broad spatial range. A compact circuit model of the tiled unit cell is proposed and characterized with full-wave electromagnetic simulations. Waveguide measurements of a prototype unit cell have been carried out. A design example of a tiled 10 × 10-element 1-bit beam-steering transmitarray is presented and its performance benchmarked against the conventional single-panel, i.e., unibody, counterpart. Prototypes of the tiled and single-panel C-band transmitarrays have been fabricated and tested, demonstrating their close performance, good agreement with simulations and a weak effect of fabrication tolerances. The proposed transmitarray antenna configuration has great potential for fifth-generation (5G) communication systems.
Open AccessCharacterization of Tiled Architecture for C-Band 1-Bit Beam-Steering Transmitarray
A new implementation of a beam-steering transmitarray is proposed based on the tiled array architecture. Each pixel of the transmitarray is manufactured as a standalone unit which can be hard-wired for specific transmission characteristics. A set of complementary units, providing reciprocal phase-shifts, can be assembled in a prescribed spatial phase-modulation pattern to perform beam steering and beam forming in a broad spatial range. A compact circuit model of the tiled unit cell is proposed and characterized with full-wave electromagnetic simulations. Waveguide measurements of a prototype unit cell have been carried out. A design example of a tiled 10 × 10-element 1-bit beam-steering transmitarray is presented and its performance benchmarked against the conventional single-panel, i.e., unibody, counterpart. Prototypes of the tiled and single-panel C-band transmitarrays have been fabricated and tested, demonstrating their close performance, good agreement with simulations and a weak effect of fabrication tolerances. The proposed transmitarray antenna configuration has great potential for fifth-generation (5G) communication systems.