Article
Engineering, Electrical & Electronic
Lehu Wen, Steven Gao, Qi Luo, Wei Hu, Benito Sanz-Izquierdo, Xue-Xia Yang
Summary: In this paper, a wideband circularly polarized reflectarray antenna using rotational symmetrical crossed dipoles is proposed. Coupled crossed dipoles are investigated for the first time as the unit cell to achieve wideband reflection bandwidth in the antenna design. The CP reflection bandwidth is greatly improved and adjusted by controlling the coupling between the crossed dipoles, thanks to the excitation of two series resonances and two parallel resonances on the crossed dipoles. A collimated CP RA antenna with a circular aperture of 316 unit cells is designed based on this unit cell, and a wide CP bandwidth of 7.6-15.9 GHz is achieved with AR<3 dB.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Yaowei Hou, Zijian Shao, Yueping Zhang, Junfa Mao
Summary: In this communication, a novel wideband differentially fed dual-polarized laminated resonator antenna is presented, which exhibits a wide bandwidth and stable radiation patterns as demonstrated through experiments.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Wentao Yuan, Jingjian Huang, Xiaofa Zhang, Kaibo Cui, Weiwei Wu, Naichang Yuan
Summary: This letter describes a novel design for a radiation pattern-reconfigurable antenna based on a wideband Vivaldi antenna structure. By switching the feeding paths, two different radiation patterns, monopole mode and Vivaldi mode, can be achieved. The bias voltage of pin diodes can be controlled to adjust the radiation patterns, generating a broad coverage of reconfigurable pattern. Additionally, the pattern-reconfigurable antenna operates at a wide frequency band from 2.7 to 12 GHz. Simulated and experimented results for the antenna are presented.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Computer Science, Information Systems
Huy Hung Tran, Cong Danh Bui, Nghia Nguyen-Trong, Truong Khang Nguyen
Summary: This paper introduces a low-profile circularly polarized antenna with wideband and polarization-reconfigurable characteristics, utilizing a non-uniform metasurface for performance enhancement. The antenna achieves an overlapped bandwidth between -10 dB impedance and 3-dB axial ratio of 25.6% with a peak broadside gain of 7.3 dBic.
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
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
Engineering, Electrical & Electronic
Yan-Hui Ke, Ling-Ling Yang, Jian-Xin Chen
Summary: This paper proposes a pattern-reconfigurable endfire antenna with enhanced gain and high front-to-back ratio. By introducing a dielectric resonator excited in TE2d1 to form magnetic dipoles, two pairs of magnetoelectric dipoles can be equivalently obtained for beam steering. The experimental results show that the proposed antenna can provide three endfire beams with a peak gain of 8.9 dBi, and a front-to-back ratio of more than 15 dB within the frequency range from 4.72 to 5.35 GHz, which are consistent with the simulation.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Yu Wang, Shenheng Xu, Fan Yang, Douglas H. Werner
Summary: The study proposes a novel 1-bit transmitarray element design at Ku-band, utilizing an active receiving dipole and a passive asymmetric transmitting dipole to achieve 1-bit phase shift. By adding a parasitic bypass dipole to mitigate the influence of p-i-n diodes and reduce element insertion loss, a low loss of only 1.0 dB is achieved.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Computer Science, Information Systems
Abolfazl Azari, Anja Skrivervik, Hadi Aliakbarian, Ramezan Ali Sadeghzadeh
Summary: In this paper, a miniaturized gain-enhanced Vivaldi antenna element is designed, simulated, and successfully measured for 5G mmWave applications. The size of the antenna is compact, measuring only 5.5mm x 12mm. The operational bandwidth of the antenna element is between 22.5 - 45 GHz, covering 5G n257, n258, n259, n260, and n261 frequency bands.
Article
Engineering, Electrical & Electronic
Fan Wu, Rong Lu, Jingxue Wang, Zhi Hao Jiang, Wei Hong, Kwai-Man Luk
Summary: This article reports a broadband and low loss circularly polarized electronically reconfigurable reflectarray antenna that operates over the X-band. By introducing a new reconfigurable magneto-electric dipole element and combining it with an engineered wideband ME-dipole element and low loss reconfigurable perturbation structure, superior circular polarized bandwidth and high efficiency are achieved.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Engineering, Electrical & Electronic
Wen-Hai Zhang, Quan Xue, Wanchen Yang, Wenquan Che, Shaowei Liao, Haidong Chen, Wenjie Feng, Kam-Weng Tam
Summary: A planar bidirectional circularly polarized antenna using orthogonal magnetic dipoles (OMDs) without an extra phase shift line is proposed. Experimental results show that the antenna has low design complexity and improved gains.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Computer Science, Information Systems
Wen-Wen Liu, Zhen-Hua Cao, Zhi Wang
Summary: This article introduces a 2 x 4 sequentially rotated wideband circularly polarized dielectric resonator antenna subarray with high gain. The antenna utilizes dual-cylindrical ceramic blocks and a sequentially rotated feeding network to achieve wide bandwidth capabilities.
Article
Computer Science, Information Systems
Brad R. Jackson
Summary: This paper investigates the direction of arrival (DoA) estimation using adaptive arrays with RPRA elements, achieving unambiguous estimates over all incident angles while reducing the number of antennas. Practical design at 6 GHz has shown to meet or exceed theoretical performance, demonstrating the feasibility of the technique.
Article
Engineering, Electrical & Electronic
Min Liu, Zhen Jun Zhai, Feng Lin, Hou Jun Sun
Summary: This letter presents a wideband quad-polarization-reconfigurable bidirectional antenna using a simple wideband switchable feeding network. By cutting a symmetrical fractal slot on the ground, a wideband dual-polarized differential bidirectional circular monopole antenna with high isolation is realized. A prototype operating at 1.85 GHz is designed and fabricated for verification. The measured results show good performance in terms of bandwidth, isolation, and gain for both linear and circular polarization states.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Pan-Pan Zhang, Xi-Cheng Zhu, Yun Hu, Zhang-Cheng Hao, Guo-Qing Luo
Summary: This letter presents the design and implementation of a wideband circularly polarized folded reflectarray antenna (CPFRA) with a linearly polarized (LP) feed antenna. The CPFRA utilizes a polarization-sensitive frequency selective surface (FSS) and sequential rotation technique to achieve wideband operation and enhanced axial ratio (AR) bandwidth.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Chemistry, Analytical
Julien Philippe, Maria Valeria De Paolis, Dominique Henry, Alexandre Rumeau, Antony Coustou, Patrick Pons, Herve Aubert
Article
Engineering, Electrical & Electronic
Abderrahim Okba, Alexandru Takacs, Herve Aubert
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2019)
Article
Geochemistry & Geophysics
Dominique Henry, Herve Aubert, Thierry Veronese
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2019)
Article
Chemistry, Analytical
Abderrahim Okba, Dominique Henry, Alexandru Takacs, Herve Aubert
Article
Engineering, Electrical & Electronic
M. V. De Paolis, J. Philippe, A. Rumeau, A. Coustou, S. Charlot, H. Aubert, P. Pons
MICROELECTRONICS RELIABILITY
(2019)
Article
Engineering, Electrical & Electronic
Dominique Henry, Timothee Marchal, Julien Philippe, Patrick Pons, Herve Aubert
Summary: This article presents a method for wirelessly querying and identifying multiple passive pressure sensors in an industrial environment with a reading range of at least 4 m. The 3-D beamscanning of the scene is performed using a 24-GHz FM-CW radar, with diverse electric field polarizations. The use of cross-polarized electric fields combined with radar imagery technique enables remote interrogation of passive pressure sensors up to 17.7 m away, with measurement uncertainty on pressure discussed.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Chemistry, Analytical
Julien Philippe, Muriel Ferry, Samuel Charlot, Sandrine Assie, Aurelie Lecestre, Guillaume Libaude, Andre Ferrand, Patrick Pons, Herve Aubert
Summary: This paper presents the design, fabrication, and performance measurement of a passive microelectromechanical transducer for the wireless monitoring of high irradiation doses in nuclear environments. The sensor is composed of high-density polyethylene material sealed inside a cavity, and its design allows for the estimation of radiation dosage through the deflection of a dielectric membrane.
Article
Chemistry, Analytical
Alexandre Dore, Cristian Pasquaretta, Dominique Henry, Edmond Ricard, Jean-Francois Bompa, Mathieu Bonneau, Alain Boissy, Dominique Hazard, Mathieu Lihoreau, Herve Aubert
Summary: This study introduces a new automated tracking system based on millimetre-wave radars, which allows real-time monitoring of untagged animals with low processing power and high accuracy compared to traditional video tracking systems. Experimental validation shows that radar data can provide new estimations for improving the behavioral phenotyping of sheep. Furthermore, the study demonstrates the potential of using radars for movement tracking at larger spatial scales in the field by adjusting radar parameters.
Article
Engineering, Electrical & Electronic
Luis Felipe Fonseca Dias, Camille Jouvaud, Christophe Delaveaud, Herve Aubert
Summary: This paper investigates how a passive device can convert a linearly polarized electromagnetic field into a circularly polarized field to improve interrogation range and reduce electromagnetic clutter. The experimental results confirm the effectiveness of this conversion.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Chemistry, Analytical
Kevin Sanchez, Bilel Achour, Anthony Coustou, Aurelie Lecestre, Samuel Charlot, Maylis Lavayssiere, Alexandre Lefrancois, Herve Aubert, Patrick Pons
Summary: In this paper, a new ultra-fast sensor is designed for accurately measuring static overpressure peaks in blast wave experiments. The sensor uses piezo-resistive gauges and has a response time lower than a few microseconds.
Proceedings Paper
Engineering, Electrical & Electronic
Dominique Henry, Timothee Marchal, Julien Philippe, Herve Aubert, Patrick Pons
PROCEEDINGS OF THE 2020 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Maria De Paolis, Julien Philippe, Alexandre Rumeau, Anthony Coustou, Samuel Charlot, Herve Aubert, Patrick Pons
2019 20TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS & EUROSENSORS XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
T. Marchal, J. Philippe, D. Henry, M. V. De Paolis, A. Coustou, P. Pons, H. Aubert
2019 49TH EUROPEAN MICROWAVE CONFERENCE (EUMC)
(2019)
