Radioelectronics and Communications Systems

16/06/2021

2021, n.2, p.99-105

Interleaver assignment solution for multi radio access technology supported 5G networks

Manish Yadav, Pramod Kumar Singhal

Fifth Generation (5G) communication networks support multiple radio access technologies, popularly known as multi-RAT, to facilitate services to all the mobile subscribers irrespective of their subscription for any old generation network...
http://radioelektronika.org/article/view/s0735272721020059

11/06/2021

2021, n.2, p.92-98

Compact 4x4 CPW-fed MIMO antenna with Wi-Fi and WLAN notch for UWB applications

Anubhav Kumar

This paper presents a compact CPW-fed MIMO antenna for UWB applications. The four-element CPW-fed antenna is designed as a radiator...

Compact 4x4 CPW-fed MIMO antenna with Wi-Fi and WLAN notch for UWB applications Authors Anubhav Kumar Raj Kumar Goel Institute of Technology and Management, Ghaziabad https://orcid.org/0000-0002-2201-6201 DOI: https://doi.org/10.3103/S0735272721020047 Keywords: UWB, ECC, DG, TARC, CCL, MIMO, multipl...

06/06/2021

2021, n.2, p.80-91

Effective high-precision analysis of thin asymmetric inductive diaphragm in rectangular waveguide using integral equation method

S. Ye. Martyniuk, F. F. Dubrovka, O. S. Zakharchenko, P. Ya. Stepanenko

This paper proposes a solution of the electrodynamic problem of determining the generalized scattering matrix of infinitely thin asymmetric one-sided inductive diaphragm in rectangular waveguide using the integral equation method...

Effective high-precision analysis of thin asymmetric inductive diaphragm in rectangular waveguide using integral equation method Authors S. Ye. Martyniuk Igor Sikorsky Kyiv Polytechnic Institute https://orcid.org/0000-0002-1920-8755 F. F. Dubrovka Igor Sikorsky Kyiv Polytechnic Institute https://orc...

31/05/2021

2021, n.2, p.64-79

Transient model for modern microelectronic devices applicable to EKV PMOS model

Mohamed B. El Mashade, Ahmed Abdel Monem

Massive advances in microelectronic manufacturing technology with an exponential growth of their complexity and speed are needed to ensure a continuous development of novel techniques, structures, devices, circuits and systems...
http://radioelektronika.org/article/view/s0735272721020023

25/05/2021

2021, n.2, p.53-63

Stopband characteristics improvement of waveguide planar E-plane filters

M. Yu. Omelianenko, T. V. Romanenko, S. Ya. Zhuk, O. V. Turieieva

The development results of new waveguide planar filters with high selectivity are presented in this article. New bandpass filters (BPF) based on folded metal structures have poles of attenuation characteristics near the filter passband and they are focused on selectivity improvement...

Stopband characteristics improvement of waveguide planar E-plane filters Authors M. Yu. Omelianenko Igor Sikorsky Kyiv Polytechnic Institute https://orcid.org/0000-0002-6307-0220 T. V. Romanenko Igor Sikorsky Kyiv Polytechnic Institute https://orcid.org/0000-0001-5157-3739 S. Ya. Zhuk Igor Sikorsky....

19/05/2021

2021, n.1, p.45-52

Prediction of rain attenuation trend due to climate change in some locations of Southwestern Nigeria

Folasade Abiola Semire, Adeyanju Joshua Adekunle, Robert Oluwayimika Abolade, Oluwole Abiodun Adegbola

Climate change has become a phenomenon of global concern and it has resultant effect on the variability of radio propagation. In recent times, the issue of climate change has been a global phenomenon having its resultant effect on the variability of radio propagation...

Prediction of rain attenuation trend due to climate change in some locations of Southwestern Nigeria Authors Folasade Abiola Semire Ladoke Akintola University of Technology, Ogbomoso http://orcid.org/0000-0003-0679-7746 Adeyanju Joshua Adekunle Ladoke Akintola University of Technology, Ogbomoso Robe...

13/05/2021

2021, n.1, p.36-44

Analysis of amplitude-frequency response of acousto-optic delay line

A. R. Gasanov, R. A. Gasanov, R. A. Akhmedov

A mathematical model of the signal formation process at the output of acousto-optic delay line (AODL) with direct detection has been proposed. This model is used to derive an equation of the AODL transient response...
http://radioelektronika.org/article/view/s0735272721010040

07/05/2021

2021, n.1, p.26-35

Active inductor-based ultra-wideband low noise amplifier for rejection of wireless LAN interference

Nischal Koirala

This paper presents a low noise amplifier (LNA) for the ultra-wideband (UWB) application in the range 3.1–10.6 GHz based on active inductor topology. The LNA is designed to provide a flat gain and to reject wireless local area networking interference at 5–6 GHz band...

Active inductor-based ultra-wideband low noise amplifier for rejection of wireless LAN interference Authors Nischal Koirala University of Alabama https://orcid.org/0000-0001-8559-6744 DOI: https://doi.org/10.3103/S0735272721010039 Keywords: Active inductor, UWB, interference rejection, low noise amp...

03/05/2021

2021, n.1, p.14-25

Wireless paging system for underground mines

Pankaj K. Mishra, Amit Swain, Subhash Kumar, Sujit K. Mandal

Underground working in different horizons with intricate haulage and traveling roadways is very complex in nature. Wired communication is presently the most adopted technology in Indian underground mines...
http://radioelektronika.org/article/view/s0735272721010027

28/04/2021

2021, n.1, p.1-13

Width estimation of non-Gaussian Doppler velocity spectra of meteorological formations

Dmytro V. Atamanskiy, Andrii V. Semeniaka, Ihor V. Krasnoshapka

The paper considers features of the Doppler velocity spectrum width of meteorological formations obtained on the basis of the pulse-pair method when a velocity Doppler spectrum differs from the Gaussian shape...
http://radioelektronika.org/article/view/s0735272721010015

23/04/2021

2020, n.12, p.656-665
Special issue: 90th anniversary of Radioengineering faculty KPI

Eight-channel directional coupler of orthogonal H21 modes in circular waveguide for X-band quasi-monopulse antenna systems

F. F. Dubrovka, S. I. Piltyay, Yu. A. Ovsyanik, R. R. Dubrovka

The paper presents results of the development and performance optimization of 8-channel directional coupler (DC) of orthogonal type H21 modes in a circular multimode waveguide. This DC is designed for a high precision autotracking quasi-monopulse system of low-orbiting satellites for Earth remote probing...
http://radioelektronika.org/article/view/s0735272720120043

19/04/2021

2020, n.12, p.650-655
Special issue: 90th anniversary of Radioengineering faculty KPI

Waveguide planar E-plane filter with ultra-wide stopband

M. Yu. Omelianenko, T. V. Romanenko, O. V. Turieieva

A waveguide planar bandpass filter for 2-cm wavelength range (13.5–14.5 GHz) with an ultra-wide stopband (up to the 6th harmonic of the central frequency of the bandwidth) is proposed, developed and experimentally investigated in this article...
http://radioelektronika.org/article/view/s0735272720120031