340 citations · 506 across the 23 of their papers we have counts for
25 papers
Generative Adversarial Reconstruction with Adaptive Thresholding for Obstructed Targets in Computational Microwave Imaging
Jiaming Zhang, Maria Garcia-Fernandez, Guillermo Alvarez-Narciandi +3
In this work, an end-to-end generative adversarial framework for computational microwave imaging (CMI) is proposed to reconstruct the targets of interest directly from the measurem…
Computational Microwave Imaging Relying on Orbital Angular Momentum Transmitarrays for Improved Diversity
Miguel Angel Balmaseda-Marquez, Guillermo Álvarez-Narciandi, María García-Fernández +3
This work proposes the use of orbital angular momentum (OAM) waves to improve the performance of a computational imaging (CI) system. Specifically, in contrast to a solely frequenc…
Design of Rectangular Waveguide-fed Metasurfaces for Near-Field Shaping using a Coupled Dipole Model
Insang Yoo, Dong Hwan Min, Thomas Fromenteze +1
We present the design of rectangular waveguide-excited metasurfaces for near-field shaping using a coupled dipole framework. Waveguide-fed metasurfaces are array-like radiating sys…
Adversarial Learning-Based Radio Map Reconstruction for Fingerprinting Localization
Jiaming Zhang, Jiajun He, Tianyu Lu +2
This letter presents a feature-guided adversarial framework, namely ComGAN, which is designed to reconstruct an incomplete fingerprint database by inferring missing received signal…
FinGAN: An Interpretable RSS Generation Network for Scalable Fingerprint Localization
Jiaming Zhang, Jiajun He, Jie Zhang +1
This work introduces FinGAN, a robust received signal strength (RSS) data generator designed to expand RSS fingerprint datasets. Compared to existing generative adversarial models…
Integrated Image Reconstruction and Target Recognition based on Deep Learning Technique
Cien Zhang, Jiaming Zhang, Jiajun He +1
Computational microwave imaging (CMI) has gained attention as an alternative technique for conventional microwave imaging techniques, addressing their limitations such as hardware-…
Metasurfaces-Enabled Wave Computing for Future Wireless Systems: Opportunities and Challenges
Zahra Rahimian Omam, Hamidreza Taghvaee, Ali Araghi +5
The next generations of wireless networks are envisioned to integrate communications, sensing, and computing into a unified platform, demanding ultra-high data rates, submillisecon…
Differential Evolution-Based End-Fire Realized Gain Optimization of Active and Parasitic Arrays
Rozita Konstantinou, Ihsan Kanbaz, Okan Yurduseven +1
We propose a novel approach for boosting the realized gain in enhanced directivity arrays with both active and parasitic dipoles as radiating elements. The optimization process inv…
Near-Field Localization with Antenna Arrays in the Presence of Direction-Dependent Mutual Coupling
Zohreh Ebadi, Amir Masoud Molaei, George C. Alexandropoulos +4
Localizing near-field sources considering practical arrays is a recent challenging topic for next generation wireless communication systems. Practical antenna array apertures with…
Near-Field Localization with an Exact Propagation Model in Presence of Mutual Coupling
Zohreh Ebadi, Amir Masoud Molaei, Muhammad Ali Babar Abbasi +3
Localizing near-field sources considering practical arrays is important in wireless communications. Array-based apertures exhibit mutual coupling between the array elements, which…
Optimization of Super-Directive Linear Arrays with Differential Evolution for High Realized Gain
Ihsan Kanbaz, Okan Yurduseven, Michail Matthaiou
Due to the low impedance and high feeding currents, it is naturally challenging to design super-directive antenna arrays that perfectly match the feed line, and this becomes almost…
Super-Directive Antenna Arrays: How Many Elements Do We Need?
Ihsan Kanbaz, Okan Yurduseven, Michail Matthaiou
Super-directive antenna arrays have faced challenges in achieving high realized gains ever since their introduction in the academic literature. The primary challenges are high impe…
Hollow Rectangular Waveguide-fed Holographic Beamforming Antenna Additively Manufactured (3D Printed) with Conductive Polymer
Insang Yoo, Jonah Gollub, Shengrong Ye +4
We present the design and fabrication of 3D printed holographic beamforming antennas. The antennas utilize additively manufactured hollow rectangular waveguides that feed radiating…
Optimizing Polarizability Distributions for Metasurface Apertures with Lorentzian-Constrained Radiators
Patrick T. Bowen, Michael Boyarsky, Laura M. Pulido-Mancera +3
We present a design strategy for selecting the effective polarizability distribution for a metasurface aperture needed to form a desired radiation pattern. A metasurface aperture c…
Spatio-temporal analysis of electromagnetic field coherence in complex media
Thomas Fromenteze, Matthieu Davy, Okan Yurduseven +2
We study the coherence in time and space of electromagnetic fields propagated through complex media. Whether for localization, imaging or telecommunication, the development of dedi…
Smart Radio Environments
Gabriele Gradoni, Marco Di Renzo, Ana Diaz-Rubio +27
This Roadmap takes the reader on a journey through the research in electromagnetic wave propagation control via reconfigurable intelligent surfaces. Meta-surface modelling and desi…
Graph Attention Network Based Single-Pixel Compressive Direction of Arrival Estimation
Kürşat Tekbıyık, Okan Yurduseven, Güneş Karabulut Kurt
In this paper, we present a single-pixel compressive direction of arrival (DoA) estimation technique leveraging a graph attention network (GAT)-based deep-learning framework. The p…
Intelligent Reflecting Surfaces with Spatial Modulation: An Electromagnetic Perspective
Okan Yurduseven, Stylianos D. Assimonis, Michail Matthaiou
Electromagnetic wave control using the concept of a reflecting surface is first studied as a near-field and a far-field problem. Using a secondary source present in a wireless comm…
The Road to 6G: Ten Physical Layer Challenges for Communications Engineers
Michail Matthaiou, Okan Yurduseven, Hien Quoc Ngo +3
While the deployment of 5G cellular systems will continue well in to the next decade, much interest is already being generated towards technologies that will underlie its successor…
Indirect Microwave Holography and Through Wall Imaging
Okan Yurduseven, Michael Elsdon
In this paper, a review of indirect microwave holography for through-wall imaging is presented. Indirect microwave holography is an imaging technique, enabling the complex object s…
3D Conductive Polymer Printed Metasurface Antenna for Fresnel Focusing
Okan Yurduseven, Shengrong Ye, Thomas Fromenteze +3
We demonstrate a 3D printed holographic metasurface antenna for beam-focusing applications at 10 GHz within the X-band frequency regime. The metasurface antenna is printed using a…
Analysis of a Waveguide-Fed Metasurface Antenna
David R. Smith, Okan Yurduseven, Laura Pulido Mancera +2
The metasurface concept has emerged as an advantageous reconfigurable antenna architecture for beam forming and wavefront shaping, with applications that include satellite and terr…
Computational polarimetric microwave imaging
Thomas Fromenteze, Okan Yurduseven, Michael Boyarsky +3
We propose a polarimetric microwave imaging technique that exploits recent advances in computational imaging. We utilize a frequency-diverse cavity-backed metasurface, allowing us…
Computational Microwave Imaging Using 3D Printed Conductive Polymer Frequency-Diverse Metasurface Antennas
Okan Yurduseven, Patrick Flowers, Shengrong Ye +5
A frequency-diverse computational imaging system synthesized using three-dimensional (3D) printed frequency-diverse metasurface antennas is demonstrated. The 3D fabrication of the…