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
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
Sahar Saleh, Widad Ismail, Intan Sorfina Zainal Abidin, Moh'd Haizal Jamaluddin, Mohammed H. Bataineh, Asem S. Al-Zoubi
Summary: A new theory called Vivaldi nonuniform slot profile antenna (VNSPA) is proposed to reduce the size of the predesigned compact ultrawide band (UWB) Vivaldi-tapered slot antenna (VTSA) without compromising its performance. The proposed antenna achieves a significant size reduction and maintains similar matching and bandwidth performance compared to VTSA. Experimental results validate the effectiveness of the new theory.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Xinrong Shi, Yunfei Cao, Yougen Hu, Xudong Luo, Hua Yang, Liang Hua Ye
Summary: The proposed ultrawideband antipodal Vivaldi antenna features various design elements such as an elliptical-shaped director, metamaterial inspired structure, and symmetrically embedded rectangular slits, achieving high gain and good impedance matching over an extremely wide frequency band.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Carl Pfeiffer, Jeffrey Massman
Summary: In this research, we present a low-profile array on a doubly curved surface that enables wide angle scanning and ultrawide bandwidth. The array consists of 104 linearly polarized balanced antipodal Vivaldi antenna (BAVA) elements arranged on a quadrilateral mesh on a 100 mm diameter hemisphere. The array achieves grating lobe-free operation below 8 GHz and maintains relatively low sidelobe levels above 8 GHz due to the aperiodicity of the hemispherical element locations.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Florian Stern, Wolfgang Taute, Reinhard Knoechel, Michael Hoeft
Summary: Moisture measurement is crucial for quality control and energy saving in industrial processes. This article focuses on the design of tapered slot antennas (TSAs) specifically for moisture measurements in natural materials. The research improves the selectivity and accuracy of moisture measurements in composite natural materials by optimizing the design of the antenna and using special materials.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Tao Liu, Quanyuan Feng
Summary: In this letter, a 16-element array antenna with broadband and high gain for WiFi-5 and WiFi-6E is proposed. By changing the structure and using deformed power divider structures, the narrow bandwidth limitation of traditional microstrip antennas is overcome. The measurement results show that the antenna has good performance in terms of frequency range and gain.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Daniel W. Stambovsky, Ronald J. Marhefka, Andrew J. Terzuoli
Summary: A new method is proposed to compare the volumetric figure of merit for different antenna designs with a new metric called the A-B parameter, which considers the complexity of antenna types and helps select the most effective antenna under volumetric constraints. The method also aids in visualizing results efficiently and provides a comparative analysis between different antenna designs.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Chemistry, Analytical
Tale Saeidi, Idris Ismail, Sima Noghanian, Adam R. H. Alhawari, Qammer H. Abbasi, Muhammad Ali Imran, M. Y. Zeain, Shahid M. Ali
Summary: This paper introduces a miniaturized dual-polarized MIMO antenna with high isolation achieved through integration of metamaterial elements, obtaining isolation greater than 20 dB without the need for other decoupling methods. The proposed antenna operates in three frequency bands with wide bandwidth, high gain, and radiation efficiency.
Article
Engineering, Electrical & Electronic
Muhammad Nasir, Adnan Iftikhar, Muhammad Farhan Shafique, Birsen Saka, Symeon Nikolaou, Dimitris E. E. Anagnostou
Summary: A novel wideband multilayer dual-podal Vivaldi antenna design is presented in this paper, with a frequency range of 5.5 to 20.82 GHz and improved performance parameters. The design consists of a pair of podal Vivaldi antennas with corrugated slots placed on the top and bottom of a substrate stack, fed in-phase with the help of a Strip-Line transmission section. A detailed analysis and insight into the working mechanism is provided. Additionally, a 1 x 4 Vivaldi antenna array is designed and analyzed, achieving a measured maximum gain of 13 dBi at 15 GHz and a wide bandwidth of 6.3 GHz.
IET MICROWAVES ANTENNAS & PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
P. Prasanna Kumar, Prerna Saxena
Summary: This paper proposes a novel high gain antipodal tapered slot antenna for high resolution imaging applications in the frequency range of 20-40 GHz. By designing the radiating fins of the antenna as elliptical and circular shape for inner and outer tapers respectively, and incorporating an isosceles trapezoid-shaped dielectric lens and anisotropic left-handed metamaterial unit cells, the antenna achieves high gain and stable radiation pattern.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Yang Cheng, Yuandan Dong
Summary: The proposed antenna features a novel design that allows for circular polarization radiation in different frequency bands, including both low and high frequencies. It shows excellent bandwidth and gain performance, making it suitable for applications in 5G and other communication systems.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Reza Karimian, Sajjad Taravati, Mansoor Dashti Ardakani, Shahrokh Ahmadi, Mona E. Zaghloul
Summary: This study introduces a nonreciprocal-beam phased-array antenna that provides power amplification in both transmission and reception states. Compared to other antenna designs, this antenna does not introduce undesired time harmonics and frequency conversion, and does not require an RF bias signal.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2021)
Article
Engineering, Electrical & Electronic
Yongjian Zhang, Yue Li
Summary: This article proposes a scalable dual-polarized antenna using a compact cavity and slot-dipole hybrid structure for omnidirectional radiation. The antenna achieves dual-polarized radiations with high port isolation and low gain variations, covering the frequency band of WLAN system. The antenna also exhibits advantages of compact volume and array scalability, making it promising for high-gain router applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Engineering, Electrical & Electronic
Kai-Ran Xiang, Fu-Chang Chen, Qing-Xin Chu
Summary: This article proposes a radiant metal block structure for designing reduced-size cavity-backed filtering antenna. The characteristic current modes and radiation quality factor of the metal block are investigated using the method of characteristic mode analysis. Metal block filtering antenna array is designed by cascading the proposed metal block with traditional resonant cavities, and the measurement results are consistent with the simulated ones.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
