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
Zichao Zheng, Fangjun Chen, Ziyu Pan, Feng Xu
Summary: In this study, a high-gain and low-profile tapered slot antenna with a composite patch made of ellipse and spoof surface plasmon polaritons (sSPPs) structures is proposed. The fabricated antenna achieves a wide operating bandwidth of 82.3% (5-12 GHz) and shows good directivity and end-fire radiation performance.
ELECTRONICS LETTERS
(2022)
Article
Computer Science, Information Systems
Mohamad Yafik Ihtisyam Yazid, Mohd Hafiz Baharuddin, Mohammad Shahidul Islam, Mohammad Tariqul Islam, Ali F. Almutairi
Summary: This paper presents the development of an antipodal Vivaldi antenna with a fractal slot, which has potential applications in multisensory systems for head stroke imaging. The fractal slot is utilized to enhance the antenna's directivity, bandwidth, and gain. The research aims to design and optimize a compact Vivaldi antenna with the fractal slot for detecting stroke in the human head. The proposed antenna achieves a wide bandwidth of 1.44 GHz (2.35 GHz to 3.79 GHz) and a maximum gain of 7.35 dBi, and it meets the requirements for microwave imaging procedures.
Article
Computer Science, Interdisciplinary Applications
Xiaodong Huang, Jinru Cao, Weiye Zhong, Xiuhua Jin
Summary: By introducing a V-shaped air slot in the antenna substrate, the peak gain of traditional Vivaldi antennas can be significantly improved without increasing size or adding extra components. The air slot helps to distribute electromagnetic waves more evenly, enhancing peak gain particularly at higher frequencies. Experimental results demonstrate that the combination of air slot and removal of back substrate can effectively enhance antenna performance.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2021)
Article
Computer Science, Information Systems
Shalermchon Tangwachirapan, Wanwisa Thaiwirot, Prayoot Akkaraekthalin
Summary: This paper presents the design and analysis of antipodal Vivaldi antennas (AVAs) for breast cancer detection. Different techniques such as uniform and non-uniform corrugation, expanding the dielectric substrate, and adding a parasitic patch are applied to enhance antenna gain. The proposed AVAs are optimized to achieve desired properties for breast cancer detection while maintaining a compact size, simple structure, and low complexity in design.
CMC-COMPUTERS MATERIALS & CONTINUA
(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
M. Sandhana Mahalingam, R. Pandeeswari, S. Deivalakshmi, Seokbum Ko
Summary: This paper presents a new compact Balanced Antipodal Vivaldi Antenna (BAVA) with asymmetrically meshed ground, square shaped metallic labyrinth, and dual scale edge treatment. The proposed antenna operates from 4 GHz to 18 GHz with good impedance matching and achieves high gain throughout the frequency band. The antenna's maximum size is 80 x 40 x 0.508 mm3. Numerical analysis and experimental validation are performed to study the radiation characteristics of the antenna.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Matti Kuosmanen, Jari Holopainen, Juha Ala-Laurinaho, Tero Kiuru, Ville Viikari
Summary: This article presents a bandpass filtering antenna array based on corrugated Vivaldi antenna elements and fin line waveguides. The structure utilizes periodically corrugated Vivaldi elements for low-pass filtering and a surrounding waveguide for high-pass filtering. The resulting antenna exhibits a wide bandpass response and excellent rejection up to 6 GHz. The filtering properties are independent of the scan angle, making it suitable for various applications.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2023)
Article
Engineering, Electrical & Electronic
Tingting Zhang, Yikai Chen, Zhiyuan Liu, Shiwen Yang
Summary: To reduce in-band scattering over a large angular range, a low-scattering Vivaldi antenna array is proposed with cutting slits on the nonradiating edges of each antenna element. The slits separate the structural modal and antenna modal scattering currents, suppressing the structural modal scattering while keeping the antenna modal scattering currents unchanged. The design features a simple structure and effectively reduces the in-band radar cross section over a wide angular range.
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
Materials Science, Multidisciplinary
Pouya Faeghi, Changiz Ghobadi, Javad Nourinia, Bal Virdee
Summary: A novel technique is proposed to enhance the gain of a Vivaldi antenna array by loading it with Complementary Split-Ring Resonators (CSRR) and an array of open-loop meander-line unit cells. The unit cells exhibit anisotropic zero-index metamaterial (AZIM) properties, expanding the aperture size of the antenna without increasing its overall size. The antenna is excited with a novel feedline using hair-comb radial stubs (HCRS) to maximize power transfer. A thin film of Graphene/copper nanoparticles is deposited onto the CSRR to further increase the array's gain.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Multidisciplinary Sciences
Zhang Chao, Zhao Zitong, Xiao Pei, Yu Jie, Liu Zhu, Li Gaosheng
Summary: This paper proposes a step-by-step design procedure for obtaining independent dual band-notch performance in a tunable dual band-notched UWB antenna. The proposed antenna consists of a semicircle ring-like radiating patch, an elliptical-shaped slot, double split ring resonators, and a defected ground structure (DGS). By loading varactor diodes and changing the reverse bias voltage, a wider band-notched tuning range can be achieved. The experimental results show efficient suppression of narrow-band interference signals and improved antenna operating performance. The proposed antenna has a simple structure, low profile, compact size, and extensive independent tunable range.
SCIENTIFIC REPORTS
(2022)
Review
Engineering, Multidisciplinary
Sahar Saleh, Mohd Haizal Jamaluddin, Faroq Razzaz, Saud M. Saeed, Nick Timmons, Jim Morrison
Summary: Higher performance, lower cost, and compact size antennas are crucial in today's wireless communication system. This review explores the development of ultrawide band (UWB) TSA designs over the past twenty years, focusing on their compactness and performance enhancement strategies. Extensive comparison tables are used to highlight the pros, cons, and practical applications of different TSA designs. The aim is to provide guidance for researchers and RF designers in creating high resilient Vivaldi antenna designs.
ALEXANDRIA ENGINEERING JOURNAL
(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
Telecommunications
Amruta S. Dixit, Sumit Kumar
Summary: The compact high gain antenna with epsilon negative metamaterial (ENG) design offers wide bandwidth and enhanced gain suitable for 5G communication applications. The simulated and measured results match, making this antenna a preferred choice for 5G devices.
WIRELESS PERSONAL COMMUNICATIONS
(2021)
