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
Narayana Rao Palepu, Jayendra Kumar
Summary: In this work, a novel series-feed 4-element antenna array is introduced, which provides wider bandwidth, improved co and cross-polarization isolation, and higher gain. Three different technologies were implemented to achieve the research objectives of miniaturization, bandwidth enhancement, and co-cross polarization isolation improvements. The proposed 4-element antenna array has a small size and provides a measured bandwidth of 9%, covering the 27.2 GHz to 30 GHz band, with improved gain and cross-polarization suppression.
Rating: 8/1
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Vibhor Binzlekar, Anand Sharma, Smriti Agarwal
Summary: In this paper, a Vivaldi antenna with a grooved, tapered slot loaded with an artificial material lens (AML) is designed and analyzed. The antenna provides excellent gain over a wide bandwidth within a compact size and is suitable for imaging and communication applications.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2022)
Article
Multidisciplinary Sciences
Mohammadreza Rohaninezhad, Meysam Jalali Asadabadi, Changiz Ghobadi, Javad Nourinia
Summary: In this study, a transparent super wideband CPW antenna was designed and built with the combination of solar panels for use in wireless communication equipment and systems that require mobile power. The antenna demonstrated high transparency and conductivity, and performed well in terms of frequency range and performance parameters testing.
SCIENTIFIC REPORTS
(2023)
Article
Computer Science, Information Systems
Hedi Sakli, C. Abdelhamid, C. Essid, N. Sakli
Summary: This paper presents a method for designing a new two-element ultra-wideband MIMO antenna, using a isolation technique and well-designed metamaterials to enhance performance and reduce coupling. The application of split-ring resonator on the antenna patch plane contributes to increased transmission rate and overall antenna performance.
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
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)
Article
Engineering, Electrical & Electronic
Chengwei Zhao, Yanping Bai, Qiang Wei
Summary: This paper presents a novel all-metal Vivaldi antenna design with a simple structure and convenient machining, achieving wide impedance bandwidth, stable gain, and symmetric radiation pattern over the frequency range 2-50 GHz.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Xiangxiang Li, Guoqiang Lv
Summary: The proposed compact antipodal Vivaldi antenna utilizes gradient tilted corrugated edges and an asymmetric parasitic patch structure to achieve stable end-fire radiation properties over a bandwidth of more than 15:1, while also enhancing boresight gain.
Article
Engineering, Electrical & Electronic
Huanhuan Qi, Haiwen Liu
Summary: This paper proposes a wideband high-gain Vivaldi antenna based on spoof surface plasmon polaritons (SSPP) metamaterial for radio astronomy application. The height of the SSPP structures fits the exponential function, resulting in the exponential spoof surface plasmon polaritons (ESSPP) metamaterial. With the exponential heights, the ESSPP metamaterial corrects the phase difference in a wide band, improving the gain in the frequency range from 3 GHz to 9 GHz. The proposed antenna exhibits stable radiation patterns with an average gain of 10.6 dBi.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Shailesh Jayant, Garima Srivastava, Sachin Kumar
Summary: This article presents a printed ultra-wideband (UWB) multiple input multiple output antenna with isolation enhancement and pattern diversity based on characteristic modes (CM). By placing two different shaped antenna elements on the ground surface of the antenna, the required radiation patterns can be obtained and high isolation can be achieved. The measured results show that the antenna has a wide operating frequency range, high isolation, and high radiation efficiency.
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
(2023)
Article
Chemistry, Analytical
Adam R. H. Alhawari, Tale Saeidi, Abdulkarem Hussein Mohammed Almawgani, Ayman Taher Hindi, Hisham Alghamdi, Turki Alsuwian, Samer A. B. Awwad, Muhammad Ali Imran
Summary: This study presents a low-profile Multiple Input Multiple Output (MIMO) antenna with dual polarization, low mutual coupling, and acceptable diversity gain, meeting the requirements for 5G and satellite communications. By utilizing specific antenna structures and materials, it achieves wideband operation and low mutual coupling. The antenna offers a compact and flexible design suitable for wearable 5G and satellite communication applications.
Article
Computer Science, Information Systems
Mohammad Mahdi Honari, Mohammad Saeid Ghaffarian, Rashid Mirzavand
Summary: This paper introduces a miniaturized ultra-wideband antipodal tapered slot antenna with exponential strip arms, achieving a reduction in size, increase in bandwidth, and peak gain over 1 dBi across the entire impedance bandwidth.
Article
Computer Science, Information Systems
Naeem Ahmad Jan, Saad Hassan Kiani, Daniyal Ali Sehrai, Muhammad Rizwan Anjum, Amjad Iqbal, Mujeeb Abdullah, Sunghwan Kim
Summary: This paper presents a low-cost, highly efficient, and low-profile monopole antenna for ultra-wideband (UWB) applications. The antenna utilizes a new inverted triangular-shaped structure with meander lines to achieve wide-band response and high efficiency. By optimizing meander lines parameters, ground width, and feeding line, the antenna's bandwidth is improved. The measured and simulated frequency band ranges from 3.2 to 12 GHz, with a peak gain of 4 dB and radiation efficiency of 80 to 98%.
CMC-COMPUTERS MATERIALS & CONTINUA
(2021)
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, Interdisciplinary Applications
Hari Shankar Singh, Rahul Upadhyay, Raed M. Shubair
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2020)
Article
Engineering, Electrical & Electronic
Hari S. Singh
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Manpreet Kaur, Hari Shankar Singh
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Manpreet Kaur, Hari Shankar Singh
Summary: The study presents a super-compact ultra-wideband metamaterial absorber with high absorption and wide absorption bandwidth. The absorption mechanism and practicality are confirmed through analyzing surface current distribution and validating stability under different conditions.
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
(2021)
Article
Engineering, Electrical & Electronic
Harleen Kaur, Hari Shankar Singh, Rahul Upadhyay
Summary: This article presents a compact dual-element quasi-self-complementary multiple-input multiple-output antenna for ultra-wideband communication, designed on low cost FR-4 substrate. It operates in the frequency range of 2.43GHz to 11.2GHz with high inter-port isolation and validated stability, making it suitable for UWB-MIMO wireless applications.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Engineering, Electrical & Electronic
Harleen Kaur, Hari Shankar Singh, Rahul Upadhyay
Summary: In this research study, a compact dual-polarized co-radiator ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna with improved impedance bandwidth and isolation is proposed for wireless applications. The proposed antenna exhibits wideband characteristics with stable performance over the entire UWB frequency range. The measured results agree well with the simulated results.
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
(2022)
Article
Computer Science, Interdisciplinary Applications
Manpreet Kaur, Hari Shankar Singh
Summary: This article presents a super compact 2 x 2 MIMO antenna design for WLAN applications, utilizing a DGS structure to achieve high isolation enhancement and ensuring diversity parameters meet the desired limits.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Vishal Puri, Hari Shankar Singh
Summary: This article discusses the design of a super compact, polarization insensitive, and wide angular stability ultrathin triple-band metamaterial absorber, which achieves close to perfect absorption at C, X, and Ku bands through patch unit cells. The structure is super compact with an ultrathin profile and remains stable and insensitive towards polarized waves.
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2021)
Article
Computer Science, Interdisciplinary Applications
Vishal Puri, Hari Shankar Singh
Summary: This paper proposes a compact ultra-thin ultra-wideband metamaterial absorber with near to unity absorption. The absorber achieves over 97% absorption in the frequency range of 13.6 to 18.5 GHz. The design of the structure is compact with a thickness of 0.072 lambda(0) relative to the lowest frequency of the UWB. The research demonstrates experimentally verified absorptivity of over 97% through incremental changes in the absorber design.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2022)
Article
Telecommunications
Harleen Kaur, Hari Shankar Singh, Rahul Upadhyay
Summary: This paper introduces a compact quad-element flower-shaped MIMO antenna for ultra-wideband communication, achieving good impedance bandwidth and port isolation performance. The antenna design incorporates electrically small elements and asymmetrical ground structures on the bottom layer to reduce mutual coupling between radiating elements.
WIRELESS PERSONAL COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Manpreet Kaur, Hari Shankar Singh
Summary: In this paper, a novel quad-band metamaterial absorber design with polarization- and incident-angle independence is proposed. The design covers the S, C, and X bands and exhibits high absorption rates at different frequencies. The stability of the design is validated experimentally.
Article
Engineering, Electrical & Electronic
Vishal Puri, Hari Shankar Singh
Summary: The article describes the design and development of a metamaterial-based microwave absorber with polarisation insensitivity, broad angle of incidence, low profile, and compactness. The structure achieves maximum absorption at C-, X-, and broad Ku-bands and has an overall dimension of 8 mm x 8 mm x 0.8 mm. It provides high absorption rates at different frequencies in the microwave range, making it suitable for various engineering applications.
Article
Engineering, Electrical & Electronic
Priyanka Grover, Hari Shankar Singh, Sanjay Kumar Sahu
Summary: This article presents a low-profile ultra-wideband (UWB) antenna for breast tumor detection using the monostatic radar-based microwave imaging (RBMI) technique. The proposed antenna, with a total size of 13x9x1.6 mm^3, consists of a circular patch and ground plane along with a modified tapered feed line. The antenna operates from 4 to 11 GHz and provides a peak gain of 9.5 dBi at 4.8 GHz. Experimental validation is carried out and the proposed antenna proves to be effective in detecting the exact depth and location of malignant tissue.
INTERNATIONAL JOURNAL OF IMAGING SYSTEMS AND TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Harleen Kaur, Hari Shankar Singh, Rahul Upadhyay
Summary: This manuscript presents a microstrip-fed quad-element high isolated ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna with band-notched characteristics. The proposed structure has a compact design and includes band-rejection capability, decoupling structure, and modified ground plane for better performance. Simulation results indicate good reflection coefficients and inter-port isolation over the desired frequency range. Furthermore, the proposed quad-element structure is also used for the simulation study of a 20-element UWB-MIMO antenna.
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
(2023)
Article
Engineering, Biomedical
Nitika Sharma, Hari Shankar Singh, Rajesh Khanna, Amanpreet Kaur, Mayank Agarwal
Summary: This paper presents a metasurface based hyperthermia lens applicator with a water bolus for uniform heating of cancerous tissues. The applicator consists of a stacked spiral antenna and a spiral-shaped frequency selective surface as a superstrate. The performance study shows that the applicator can efficiently heat the cancerous tissue with adequate surrounding temperature for hyperthermia treatment.
BIOMEDICAL ENGINEERING LETTERS
(2023)
