Search Results - "Iupikov, Oleg"

A Dual-Fed PIFA Antenna Element With Nonsymmetric Impedance Matrix for High-Efficiency Doherty Transmitters: Integrated Design and OTA-Characterization by Iupikov, Oleg A., Hallberg, William, Maaskant, Rob, Fager, Christian, Rehammar, Robert, Buisman, Koen, Ivashina, Marianna V.

“…A single planar inverted F-antenna is proposed employing two input ports to optimally power-combine the output signals of two nonlinear power amplifiers inside…”
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Co-Design and Validation Approach for Beam-Steerable Phased Arrays of Active Antenna Elements With Integrated Power Amplifiers by Vilenskiy, Artem R., Liao, Wan-Chun, Maaskant, Rob, Vassilev, Vessen, Iupikov, Oleg A., Emanuelsson, Thomas, Ivashina, Marianna V.

“…An approach for designing a beam-steering active phased array of antenna elements with integrated power amplifiers (PAs) is presented. It is based on an…”
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A Cavity-Backed Patch Antenna With Distributed Multi-Port Feeding, Enabling Efficient Integration With Doherty Power Amplifier and Band-Pass Filter by Iupikov, Oleg A., Perez-Cisneros, Jose-Ramon, Meyer, Petrie, Akesson, Daniel, Maaskant, Rob, Buisman, Koen, Rehammar, Robert, Fager, Christian, Ivashina, Marianna V.

“…A joint design approach for cointegrated antenna and power amplifier (PA), employing a high-efficiency Doherty PA (DPA) architecture and including a bandpass…”
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A New Hybrid Chamber for Generating a Spectrum of Oblique Incident Plane Waves at the DUT by Maaskant, Rob, Iupikov, Oleg A., Krasov, Pavlo S., Rehammar, Robert, Glazunov, Andres Alayon, Ivashina, Marianna V.

“…A novel type of hybrid measurement facility comprising a chamber antenna array (CAA) inside an overmoded waveguide (WG) is proposed and analyzed numerically…”
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A mm-Wave Phased-Array Fed Torus Reflector Antenna With ±30° Scan Range for Massive-MIMO Base-Station Applications by Elsakka, Amr, Farsaei, Amirashkan, van den Biggelaar, A. J., Reniers, Adrianus Cornelis Franciscus, Johansson, Martin N., Maaskant, Rob, Johannsen, Ulf, Iupikov, Oleg A., Smolders, A. Bart, Ivashina, Marianna V.

“…A phased-array fed reflector antenna system is presented which can be used for mm-wave base station applications. The proposed system is designed to support…”
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Multibeam Focal Plane Arrays With Digital Beamforming for High Precision Space-Borne Ocean Remote Sensing by Iupikov, Oleg A., Ivashina, Marianna V., Skou, Niels, Cappellin, Cecilia, Pontoppidan, Knud, van 't Klooster, Cornelis G. M.

“…The present-day ocean remote sensing instruments that operate at low microwave frequencies are limited in spatial resolution and do not allow for monitoring of…”
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Hybrid OTA Chamber for Multidirectional Testing of Wireless Devices: Plane Wave Spectrum Generator Design and Experimental Demonstration by Iupikov, Oleg A., Krasov, Pavlo S., Glazunov, Andres Alayon, Maaskant, Rob, Friden, Jonas, Ivashina, Marianna V.

“…This article investigates practical implementation aspects of a novel hybrid chamber concept that has been recently introduced for over-the-air (OTA) testing…”
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Cell Partitioning Antenna System Performance in Multi-User Scenarios for mmWave Communications by Bressner, Thomas A. H., Elsakka, Amr, Farsaei, Amirashkan, Johansson, Martin N., Iupikov, Oleg A., Maaskant, Rob, Smolders, A. Bart, Johannsen, Ulf

“…Fixed-beam, high-gain antenna systems can be used for a finer partitioning of the currently used cell-sectoring. This partitioning has the benefit of reducing…”
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Fast and Accurate Analysis of Reflector Antennas With Phased Array Feeds Including Multiple Reflections Between Feed and Reflector by Iupikov, Oleg A., Maaskant, Rob, Ivashina, Marianna V., Young, Andre, Kildal, Per-Simon

“…Several electrically large phased array feed (PAF) reflector systems are modeled to examine the mechanism of multiple reflections between parabolic reflectors…”
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Ultra-High-Performance C- and L-Band Radiometer System for Future Spaceborne Ocean Missions by Skou, Niels, Sobjaerg, Sten Schmidl, Kristensen, Steen Savstrup, Cappellin, Cecilia, Pontoppidan, Knud, de Lasson, Jakob Rosenkrantz, Ivashina, Marianna V., Iupikov, Oleg A.

“…A next-generation real-aperture spaceborne radiometer system for high-quality ocean measurements is discussed. Instead of illuminating the antenna reflector by…”
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Improving the Calibration Efficiency of an Array Fed Reflector Antenna Through Constrained Beamforming by Young, Andre, Ivashina, Marianna V., Maaskant, Rob, Iupikov, Oleg A., Davidson, David Bruce

“…Calibrating for the radiation pattern of a multi-beam Phased array feed (PAF) based radio telescope largely depends on the accuracy of the pattern model, and…”
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Factory Radio Design of a 5G Network in Offline Mode by Barring, Maja, Iupikov, Oleg, Glazunov, Andres Alayon, Ivashina, Marianna, Berglund, Jonatan, Johansson, Bjorn, Stahre, Johan, Harrysson, Fredrik, Engstrom, Ulrika, Friis, Martin

“…The manufacturing industry is connecting people and equipment with new digital technologies, enabling a more continuous stream of data to represent processes…”
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A Varactor-Based Reconfigurable Intelligent Surface Concept for 5G/6G mm-Wave Applications by Zhu, Yuqing, Vilenskiy, Artem R., Iupikov, Oleg A., Krasov, Pavlo S., Emanuelsson, Thomas, Lasser, Gregor, Ivashina, Marianna V.

“…A varactor-based reconfigurable intelligent surface (RIS) concept is presented for low-cost, high-precision beamforming of 5G/6G mm-waves. To enable this, we…”
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Reconfigurable Intelligent Surfaces for OTA Testing: Optimization and Initial Results by Iupikov, Oleg A., Vilenskiy, Artem R., Zhu, Yuqing, Krasov, Pavlo S., Ivashina, Marianna V.

“…We discuss a new application of RIS for Over-The-Air (OTA) testing of antenna systems and wireless devices, particularly as a cost-effective alternative to…”
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Emulating Rician distributed channels in a hybrid chamber for OTA measurements by Glazunov, Andres Alayon, Iupikov, Oleg A., Krasov, Pavlo S., Rehammar, Robert, Maaskant, Rob, Ivashina, Marianna V.

“…It has been shown by means of simulations that the rich isotropic multipath and the random line-of-sight channels and other Rician channels in-between can be…”
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Contactless Measurement of a D-Band On-Chip Antenna Using an Integrated Reflective Load Switch by Kruglov, Dmitrii, Krasov, Pavlo, Iupikov, Oleg, Vilenskiy, Artem, Ivashina, Marianna, Maaskant, Rob

“…A novel measurement setup is proposed for the contactless characterization of on-chip antennas. A D-band patch antenna is fabricated on a 100 μm-thick GaAs…”
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Hybrid OTA Chamber for Multi-Directional Testing of Wireless Devices: Plane Wave Spectrum Generator Design and Experimental Demonstration by Iupikov, Oleg, Krasov, Pavlo, Glazunov, Andres Alayon, Maaskant, Rob, Friden, J., Ivashina, Marianna

“…This paper investigates practical implementation aspects of a novel hybrid chamber concept that has been recently introduced for over-the-air testing of…”
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A Directly Matched PA-Integrated K-Band Antenna for Efficient mm-Wave High-Power Generation by Liao, Wan-Chun, Maaskant, Rob, Emanuelsson, Thomas, Vassilev, Vessen, Iupikov, Oleg, Ivashina, Marianna

“…A K-band slot antenna element with an integrated gallium nitride power amplifier (PA) is presented. It has been optimized through a circuit-electromagnetic…”
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Digital-beamforming array antenna technologies for future ocean-observing satellite missions by Iupikov, Oleg A., Ivashina, Marianna V., Cappellin, Cecilia, Skou, Niels

“…Existing passive microwave radiometers that are used for ocean observations are limited in spatial resolution and geographic coverage, due to the limitations…”
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A Directly Matched PA-Integrated [Formula Omitted]-Band Antenna for Efficient mm-Wave High-Power Generation by Wan-Chun, Liao, Maaskant, Rob, Emanuelsson, Thomas, Vassilev, Vessen, Iupikov, Oleg, Ivashina, Marianna

“…A [Formula Omitted]-band slot antenna element with an integrated gallium nitride power amplifier (PA) is presented. It has been optimized through a…”
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