Article
Computer Science, Information Systems
Jia-Cheng Liang, Cheng-Nan Chiu, Tsung-Ching Lin, Chih-Hung Lee
Summary: This paper presents a novel ultrawideband antenna that exhibits high gain and circular polarization. The antenna consists of four sophisticated antipodal Vivaldi antennas and an ultrawideband feeding network. The antenna achieves circular polarization that can be easily switched between right-handed and left-handed. The experimental results demonstrate that the antenna has a wide impedance-matching bandwidth and stable gain, making it suitable for applications in the Ku, K, and Ka frequency bands.
Article
Computer Science, Information Systems
Diego Caratelli, Renato Cicchetti, Valentina Cicchetti, Orlandino Testa
Summary: This article presents a wideband high-gain circularly polarized (CP) shaped dielectric horn-lens antenna operating in the frequency band between 6.7 and 18.2 GHz. It has a peak realized gain exceeding 13.1 dBi and is beneficial in various applications such as digital video broadcasting, remote sensing, weather monitoring, satellite communications, and air traffic control.
Article
Computer Science, Information Systems
Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Orlandino Testa
Summary: A class of lightweight spherical-axicon-like dielectric lenses designed to enhance broadband antenna performance are presented, offering construction simplicity and significant weight reduction. Petal-shaped lenses show mild gain increase, while disks-shaped lenses perform similarly to massive refractive spherical-axicon lenses. Time-domain and focusing characteristics are investigated, with a proposed model to describe the stop-band characteristics of stacked-disk lenses. Full-wave analyses using FIT technique in CST Studio Suite illustrate excellent characteristics of the lenses for narrowband and ultra-wideband waveforms.
Article
Engineering, Electrical & Electronic
Ke Zhang, Rong Tan, Zhi Hao Jiang, Yong Huang, Lin Tang, Wei Hong
Summary: A compact and ultrawideband dual-polarized Vivaldi antenna with radar cross section reduction is proposed in this paper. The antenna's RCS is suppressed over a broad frequency band by cutting slots and curved metal portions on the radiating surfaces. It has a wide range of applications and shows good performance.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Lars Foged, Orlandino Testa
Summary: This paper presents a wideband high-gain dielectric horn-lens antenna (DHLA) with 122% fractional bandwidth for wireless communications and ultra-wideband (UWB) applications. The antenna consists of a dielectric horn with a spherical-axicon dielectric lens that enhances and equalizes the gain within the operating band. It operates in the 3-12.4 GHz frequency range and can work without or with a metal reflector to enhance gain and improve the front-to-back ratio.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Tian Liang, Zhan Wang, Yuandan Dong
Summary: In this article, a simple method is proposed to estimate the axial ratio (AR) of a circularly polarized (CP) antenna using its measured reflection coefficient. The method applies to a single-port CP antenna composed of two resonant modes with orthogonal polarization and 90 degrees phase difference. It builds a bridge between the reflection coefficient and excitation property, allowing accurate estimation of circular polarization properties. A numerical optimization algorithm is also provided to estimate the AR considering the difference between the two equivalent antenna resonators. Validation and analysis of different CP antennas demonstrate the effectiveness of the method, which eliminates the need for time-consuming microwave chamber measurement.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Jing-Ya Deng, Cheng-Lin Lou, Zhijiao Chen, Yin Zhang
Summary: This article proposes a wideband circularly polarized (CP) horn antenna with a miniaturized longitudinal dimension for satellite communications. By cutting a pair of antipodal tapered slots (ATSs) on the broad walls of the horn and loading simple metal blocks near the ATSs, a circular polarization is realized. However, the circular polarization is deteriorated when the CP horn is shortened, so metal blocks are loaded near the ATSs to enhance the cross polarization and reconstruct the circular polarization. The proposed antenna achieves a 32.8% bandwidth of 11.35-15.8 GHz for both impedance and axial ratio bandwidths and is a compact and low-cost candidate for vehicular satellite communications.
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Maciej Smierzchalski, Francesco Foglia Manzillo, Michele Del Mastro, Nicolas Capet, Baptiste Palacin, Ronan Sauleau, Mauro Ettorre
Summary: This article introduces a novel parallel-fed CTS antenna that achieves dual-linear polarization using a single array and two orthogonally polarized excitation fields. Due to modal coupling, a corrugated PPW (CPPW) is introduced as an alternative waveguide, with guidelines provided for independently designing the dispersion properties of the two propagating modes.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Han Wang, Lei Zhu, Yuan Feng, Yong-Xin Guo
Summary: A novel compact dual-polarized wearable antenna is proposed for into-body bio-telemetric applications. The simulated results show wide impedance bandwidths and the antenna's performance for evaluating the into-body communication link.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Maciej Smierzchalski, Francesco Foglia Manzillo, Michele Del Mastro, Nicolas Capet, Baptiste Palacin, Ronan Sauleau, Mauro Ettorre
Summary: This study presents the experimental validation of a dual-mode, polarization-agile parallel-fed continuous transverse stub (CTS) antenna architecture, demonstrating excellent performance in both horizontal and vertical polarization. The results pave the way for the realization of dual-circularly polarized beam-scanning antennas with application to broadband and compact Ka-band ground terminals.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Siyuan Lei, Kangkang Han, Xianlei Li, Gao Wei
Summary: This letter introduces a broadband 3D-printed circularly polarized spherical Luneburg lens for the X-band with a linearly polarized feed antenna. The structure, fabricated by low-cost 3D printing, exhibits good performance and matches well with simulation results.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Zhentian Wu, Ming-Chun Tang, Ting Shi, Richard W. Ziolkowski
Summary: The antenna features a dual-circularly polarized design with a multilayer stacked layout, radiating left-hand or right-hand CP fields at 1.5 GHz, and exhibits electrical smallness and low profile characteristics, with high port isolation.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Tanner J. Douglas, Adib Y. Nashashibi, Hussein N. Shaman, Kamal Sarabandi
Summary: The antenna system proposed in this paper utilizes a novel polarization-independent spatial power divider and all-dielectric metasurface technology to achieve high performance. It not only solves the parallax issue commonly seen in traditional radar systems, but also maintains high port isolation.
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Kin-Lu Wong, Miao-Fang Jian, Ching-Jui Chen, Jian-Zhong Chen
Summary: A new two-port same-polarized rectangular patch antenna is proposed for MIMO access-point antenna application, which achieves good port isolation through simple probe feeds. A design example in a specific frequency band shows good impedance matching, port isolation, and antenna efficiency.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Lin-Xiao Wu, Qi Hu, Xin-Yao Luo, Junming Zhao, Tian Jiang, Ke Chen, Yijun Feng
Summary: An anisotropic metasurface is proposed for independent phase control on orthogonal linearly-polarized waves and is integrated with two Vivaldi feed sources to implement a low-profile wideband dual-polarized reflectarray antenna operating in Ku-band.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Stefano Pisa, Simone Chicarella, Erika Pittella, Emanuele Piuzzi, Orlandino Testa, Renato Cicchetti
IEEE SENSORS JOURNAL
(2018)
Article
Engineering, Electrical & Electronic
Renato Cicchetti, Antonio Faraone, Orlandino Testa
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2019)
Article
Engineering, Electrical & Electronic
Edoardo Baldazzi, Ali Al-Rawi, Renato Cicchetti, Adrianus Bart Smolders, Orlandino Testa, Carlos de Jong van Coevorden Moreno, Diego Caratelli
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Renato Cicchetti, Stefano Pisa, Emanuele Piuzzi, Erika Pittella, Paolo D'Atanasio, Orlandino Testa
Summary: A fast low-cost through-the-wall radar imaging (TWRI) system has been designed, realized, and tested utilizing a vector network analyzer (VNA), switches, and an array of Vivaldi antennas. Original theoretical modeling for a class of TWRI techniques was proposed to solve the inversion problem, leading to the derivation of four conventional algorithms. These techniques were successfully applied to detect targets behind walls and their performances were evaluated in terms of accuracy, field of view, and execution times. The FT-MUSIC algorithm demonstrated similar performances to DAS-MUSIC but with lower execution times and better immunity to disturbances.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Review
Chemistry, Analytical
Umair Rafique, Stefano Pisa, Renato Cicchetti, Orlandino Testa, Marta Cavagnaro
Summary: This paper presents a comprehensive review of different ultra-wideband (UWB) antenna designs for near-field microwave imaging, discussing their manufacturing technology, radiative performances, radiation mechanisms, as well as techniques used to reduce the size and improve the bandwidth.
Article
Engineering, Electrical & Electronic
Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Lars Foged, Orlandino Testa
Summary: This paper presents a wideband high-gain dielectric horn-lens antenna (DHLA) with 122% fractional bandwidth for wireless communications and ultra-wideband (UWB) applications. The antenna consists of a dielectric horn with a spherical-axicon dielectric lens that enhances and equalizes the gain within the operating band. It operates in the 3-12.4 GHz frequency range and can work without or with a metal reflector to enhance gain and improve the front-to-back ratio.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Chemistry, Analytical
Renato Cicchetti, Stefano Pisa, Emanuele Piuzzi, Orlandino Testa
Summary: A frequency-modulated continuous-wave radar for short-range target imaging was developed, utilizing a transceiver, a PLL, an SP4T switch, and a serial patch antenna array. A new algorithm based on a double Fourier transform (2D-FT) was proposed and compared with existing algorithms for target detection. The 2D-FT algorithm exhibited a wider angle of view and faster processing speed than the delay and sum (DAS) and multiple signal classification (MUSIC) algorithms. The realized radar achieved high resolutions and accurate target identification in realistic scenarios.
Article
Computer Science, Information Systems
Diego Caratelli, Renato Cicchetti, Valentina Cicchetti, Orlandino Testa
Summary: This article presents a wideband high-gain circularly polarized (CP) shaped dielectric horn-lens antenna operating in the frequency band between 6.7 and 18.2 GHz. It has a peak realized gain exceeding 13.1 dBi and is beneficial in various applications such as digital video broadcasting, remote sensing, weather monitoring, satellite communications, and air traffic control.
Article
Computer Science, Information Systems
Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Orlandino Testa
Summary: A class of lightweight spherical-axicon-like dielectric lenses designed to enhance broadband antenna performance are presented, offering construction simplicity and significant weight reduction. Petal-shaped lenses show mild gain increase, while disks-shaped lenses perform similarly to massive refractive spherical-axicon lenses. Time-domain and focusing characteristics are investigated, with a proposed model to describe the stop-band characteristics of stacked-disk lenses. Full-wave analyses using FIT technique in CST Studio Suite illustrate excellent characteristics of the lenses for narrowband and ultra-wideband waveforms.
Article
Computer Science, Information Systems
Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Orlandino Testa
Proceedings Paper
Engineering, Electrical & Electronic
E. Baldazzi, A. Al-Rawi, R. Cicchetti, A. B. Smolders, D. Caratelli
2019 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM - SPRING (PIERS-SPRING)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Diego Caratelli, Renato Cicchetti, Valentina Cicchetti, Antonio Faraone, Orlandino Testa
2019 PHOTONICS & ELECTROMAGNETICS RESEARCH SYMPOSIUM - SPRING (PIERS-SPRING)
(2019)
Article
Computer Science, Information Systems
Renato Cicchetti, Antonio Faraone, Orlandino Testa
Proceedings Paper
Engineering, Electrical & Electronic
Stefano Pisa, Erika Pittella, Emanuele Piuzzi, Orlandino Testa, Renato Cicchetti
2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)
(2017)