Comparative analysis of tunable compact rotators

ABSTRACT

Three versions of two-layer polarization plane rotators in a circular waveguide based on the internal fringing field interaction are considered. They work on the excitation of unusual eigen-oscillations within the gap between a pair of peculiar four-slot metal irises. The subjects for comparison were the range of rotation angles, the possibility to provide good matching, and the ability of rotators to be tuned by mutual iris-to-iris rotation. The best properties were found in the case of the conjugated planar-chiral irises.

KEYWORDS:

• Polarization plane
• rotation
• circular waveguide
• double-layer four-slot iris
• artificial optical activity

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

A. A. Kirilenko http://orcid.org/0000-0002-8717-5334

S. O. Steshenko http://orcid.org/0000-0003-4777-3927

V. N. Derkach http://orcid.org/0000-0001-9780-9647

Y. M. Ostryzhnyi http://orcid.org/0000-0001-6928-3430

Additional information

Notes on contributors

A. A. Kirilenko

Anatoliy A. Kirilenko (M'96–SM'99) received the Researcher, Ph.D., and D.Sc. degrees in radiophysics from Kharkiv National University (KhNU), Kharkiv, Ukraine, in 1965, 1970, and 1980, respectively. Since 1965 he has been with the National Academy of Sciences of Ukraine (IRE NASU), Kharkiv, Ukraine, where he founded the Department of Mathematical Modeling and was its long-term head. Now he is the chief researcher in the Laboratory of Computational Electromagnetics. His research interests lie in analytical and numerical methods in electromagnetics, resonance phenomena and eigen-oscillations in waveguides and gratings, in microwave computer-aided design and in electromagnetics of metamaterials. He is the author or coauthor of four books and more than 400 scientific papers in the field of numerical electromagnetics and resonance scattering. Prof. Kirilenko is the member of Editorial Boards of several radioelectronic and physical journals in Ukraine. He brought up over 20 PhDs and Docs. of Sci. Prof. Kirilenko was a recipient of the 1989 State Prize of Ukraine in Science and Technology. His current interest is dedicated to the unconventional phenomena in the structures with discrete spatial spectrum produced by eigen-oscillations and by the fringing field interaction.

S. O. Steshenko

Sergiy Steshenko was born in Miass, Russia, in 1974. He received the M.S. degree in applied mathematics from Kharkiv National University (KhNU), Kharkiv, Ukraine, and the Ph.D. degree in radiophysics from the Institute of Radiophysics and Electronics of the National Academy of Sciences of Ukraine (IRE NASU), Kharkiv, Ukraine, in 1996 and 2006, respectively. From 2001 to 2005, he was with the Department of Mathematics, Kharkiv National University, as a Junior Scientist. From 2007 to 2008 and in 2010, he was a Postdoctoral Fellow with the Department of Information Engineering, University of Siena, Siena, Italy. He is currently a Head of the Laboratory of Computational Electromagnetics, IRE NASU. His research interests include numerical methods for the analysis and design of waveguides and antennas, and eigenvalue problems.

V. N. Derkach

Vadim N. Derkach was born in Orsk, Russia, on 30 Apri 1948. He received the Researcher degree in physical optics and radiospectroscopy and Ph.D. degree in physics and mathematics from Kharkiv National University (KhNU), Kharkiv, Ukraine, in 1974 and 1984, respectively. In 1975 he joined the National Academy of Sciences of Ukraine (IRE NASU), Kharkiv, Ukraine, where, since 2004, he has been a Senior Researcher. His current research interests are open resonance structures, nondestructive testing by using millimeter waves, low-temperature spectroscopy, and metamaterial research.

Y. M. Ostrizhnyi

Yevhenii Ostryzhnyi was born in Kharkiv, Ukraine, in 1987. He received the bachelor's degree from Kharkiv National University of Radio Electronics in 2008. In 2012 he joined the National Academy of Sciences of Ukraine (IRE NASU), Kharkiv, Ukraine, where he works as a research engineer. His current research interests are spectroscopy, surface waves and metamaterial research.