Article
Engineering, Multidisciplinary
Anees Abbas, Niamat Hussain, Md Abu Sufian, Wahaj Abbas Awan, Jinkyu Jung, Sang Min Lee, Nam Kim
Summary: This study presents a highly selective triple-notch UWB-MIMO antenna, which achieves three sharp notches by utilizing EBG structures and SRRs. The proposed MIMO antenna exhibits exceptional diversity properties and is suitable for UWB communication networks.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2023)
Article
Astronomy & Astrophysics
Chainarong Kittiyanpunya, Pongsathorn Chomdee
Summary: This paper presents the development of a directional antenna for a dual-frequency sensor application. The antenna design involves the use of auxiliary dipole elements, reflector elements, and parasitic strips to achieve good performance.
Article
Engineering, Electrical & Electronic
Jian Dong Peng, Xiu Ling Li, Liang Hua Ye, Jian-Feng Li, Duo-Long Wu, Xiu Yin Zhang
Summary: This paper proposes a low profile +/- 45 degrees-polarized dipole antenna with an extremely wide bandwidth. Two crossed dipoles consisting of detached radiation arms are used as radiators, excited by dual simple striplines. Trapezoidal and rectangular strips are employed to improve the impedance matching, while metallic posts are utilized to further improve the impedance and stabilize the radiation pattern. The antenna achieves a bandwidth of 80.4% (1.68-3.94 GHz), VSWR < 1.5, isolation > 27 dB, and a steady 3 dB beamwidth of 66 degrees +/- 8 degrees in the operating band, with a compact size of 0.32 lambda(L) x 0.32 lambda(L) x 0.15 lambda(L) (lambda(L) represents the wavelength at the lowest frequency of the operating band).
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Surajit Mukherjee, Avisankar Roy, Smarajit Maity, Tapas Tewary, Partha Pratim Sarkar, Sunandan Bhunia
Summary: This article presents the design and performance analysis of a printed microstrip ultra-wideband (UWB) antenna with slots in the ground plane and radiating patch. By introducing specific slots, the antenna achieves band-notch effect for WiMAX and WLAN bands. The designed antenna exhibits small size, wide impedance bandwidth, and stable gain.
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES
(2023)
Article
Engineering, Multidisciplinary
Dong-Sheng La, Chao Zhang, Hong-Cheng Li, Meng-Yuan Wang, Jing-Wei Guo, Mei-Jun Qu
Summary: This paper presents a novel method using a laminated planar feed structure to excite omnidirectional radiation modes of dielectric resonator and achieve band-notched design with wide impedance bandwidth and stable omnidirectional radiation pattern. The application of metal patches on the side walls of the DR can also generate adjustable radiation null to improve skirt selectivity.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Computer Science, Information Systems
Zhongliang Deng, Chengqi Lai, Yucheng Wang, Kun Deng
Summary: In this paper, a novel UWB printed antenna with quadruple band-notched characteristics is proposed. Various techniques, such as interdigital capacitance slots and split-ring resonators, are used to achieve the desired band rejection properties. The proposed antenna can accurately filter out narrow-band signals.
Article
Engineering, Electrical & Electronic
Qi Zhang, Wen Jiang, Peng Liu, Kun Wei, Wei Hu, Shuxi Gong
Summary: Two metamaterial-based linear phased array antennas are designed to achieve improved wide-angle scanning bandwidth, utilizing periodic metal strips and distributed metal strips to enhance antenna bandwidth and scanning performance. The proposed antennas demonstrate promising potential for C-band radar and satellite communication applications.
IET MICROWAVES ANTENNAS & PROPAGATION
(2021)
Article
Computer Science, Information Systems
Asmaa E. Farahat, Khalid F. A. Hussein, May Abo. El-Hassan
Summary: The paper introduces a design methodology to extend the operation of a microstrip patch antenna to operate at multiple higher-order resonances. The method involves modifying the antenna structure with inductively-loaded and capacitively-coupled elements to enable efficient radiation at desired higher frequencies. The proposed method is not limited to hexagonal patch antennas and can be applied to antennas of arbitrary shapes.
Article
Chemistry, Analytical
Eunjung Kang, Tae Heung Lim, Seulgi Park, Hosung Choo
Summary: This paper presents a novel wideband leaf-shaped printed dipole antenna sensor that uses a parasitic element to improve impedance matching bandwidth characteristics, suitable for high-power jamming applications. The proposed sensor features high directive patterns and impedance matching properties, with its performance confirmed through array extension.
Article
Engineering, Electrical & Electronic
Ambavaram Pratap Reddy, Pachiyannan Muthusamy
Summary: This work reports on the inductive coupling effect of a parasitic element loaded dual layer elliptical shaped patch antenna (ESPA) for WLAN applications. The designed ESPA has overall dimensions of 30 x 15 x 3.2 mm³, with FR4 substrate materials as lower and upper layers, each with a height of 1.6 mm and a dielectric constant of 4.4. The ESPA structure, placed on the lower layer above the defective ground structure (DGS), is associated with proximity coupled 50 ohm matching transmission lines and an upper layer loaded parasitic element. The inductive coupling between the bottom layer and the parasitic element improves the gain and the bandwidth is improved due to the defected ground structure (DGS).
MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS
(2023)
Article
Chemistry, Analytical
Liang Wang, Ziwei Li, Hongxing Zheng
Summary: This article designs two MIMO antennas with double-notch structures to solve the interference problem of narrowband systems on ultra-wideband (UWB) systems and meet the design requirements of high isolation.
Article
Engineering, Electrical & Electronic
Rahul Tiwari, Ashish Bagwari, Vivek Singh Kushwah
Summary: This article presents a compact reconfigurable microstrip antenna with a multi-band configuration. The antenna resonates for three different frequency configurations, including the single and dual bands, achieved through switching configurations with PIN diodes.
Article
Computer Science, Information Systems
Musa Hussain, Syed Muhammad Rizvi Jarchavi, Syeda Iffat Naqvi, Usama Gulzar, Salahuddin Khan, Mohammad Alibakhshikenari, Isabelle Huynen
Summary: An umbrella-shaped patch antenna for future millimeter-wave applications in the 5G frequency band is presented. The antenna design was validated experimentally and compared with state of the art work, showing good correlation and potential as a candidate for 5G devices.
Article
Engineering, Electrical & Electronic
Jinlun Li, Hongtai Chen, Jialin Wang, Shunli Li, Xiaoxing Yin, Hongxin Zhao
Summary: In this letter, an ultrawideband (UWB) antipodal tapered slot antenna with reflectionless notched band is proposed and investigated. The proposed antenna uses an integrated absorptive bandstop filter to absorb the input energy at the notched frequency, instead of reflecting it.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2022)
Article
Computer Science, Information Systems
Sheng Huang, King Yuk Chan, Yu Wang, Rodica Ramer
Summary: The study proposes a method of incorporating 3D printed horns on an H-plane horn antenna to narrow the E-plane radiation pattern and improve gain performance. Through optimization of the prototype, excellent performance was demonstrated.
Article
Engineering, Electrical & Electronic
Wenzhang Zhang, Jinyao Zhang, Chaoyun Song, Rui Pei, Xuanming Zhang, Haiwen Liu, Congzheng Han, Yi Huang, Jiafeng Zhou
Summary: Due to the low available ambient power level, it is desirable to have a high gain and wide beamwidth antenna. However, it is difficult to achieve both simultaneously. In this study, a multi-port antenna using a nonuniform metasurface is proposed to overcome this limitation. By exciting three modes with complementary radiation patterns, and connecting each feed to a rectifier, the antenna achieves a wide beam and high gain effectively. The proposed rectenna has a beamwidth of 114 degrees with a gain ranging from 8 to 9.8 dBi, and an RF-to-DC conversion efficiency of 3%-67% at 2.45 GHz.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Shangjing Xi, Kai-Da Xu, Shuai Yang, Xue Ren, Wen Wu
Summary: This paper proposes a bandpass frequency selective surface (FSS) with low loss and angular stability based on three metal layers. The FSS structure is built by coupling the top and bottom resonant layers through a metal ring layer. The performance of the FSS is insensitive to the polarization and angle of the incident wave, and the prototype measurements agree with the simulations.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Ibrahim Abuishmais, Hani H. Ahmad, Fadi. R. Shahroury
Summary: This paper presents a WLED driver solution for multi-display screen systems, featuring a single-inductor power stage with independent outputs and multiple WELD strings with independent digital brightness/dimming control for each display. The inclusion of high-side switches enables independent output voltage control and minimized power consumption.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Rawaa Maher, Ahmed Allam, Haruichi Kanaya, Adel B. Abdelrahman
Summary: This paper presents two high-gain, dualband antennas designed to harvest energy from GSM-1800 and the 2.45 GHz ISM frequency bands. The antennas demonstrate good gain and circular polarization characteristics. Additionally, a dualband rectifier is designed to achieve high peak conversion efficiency.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Trapti Sharma, Addagatla Prashanth, Srinivas Bachu, Deepa Sharma, Anil Kumar Sahu
Summary: This article presents two architectures for ternary Schmitt trigger designs based on carbon nanotube technology. The proposed designs demonstrate superior performance in terms of power consumption and power delay product compared to similar designs, and show stability under process variations. These designs have the potential to achieve higher information density and lower power consumption in digital computation.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Tolga Yucehan
Summary: This manuscript introduces an ICFOA-based lossless floating immittance simulator (FIS). The FIS realizes floating capacitance multiplier, simulated floating inductor, and floating frequency-dependent negative resistor through selection of passive elements. Simulation results confirm the ideal performance of the proposed circuit within certain frequency ranges.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Kumar Saurabh, Sukwinder Singh
Summary: This article introduces a method to improve the performance of a power amplifier. By calculating the optimal load and source impedances through source and load-pull analysis, and designing the optimal matching architecture of input and output network using neural network algorithm, the power amplifier achieves high efficiency and gain in the frequency range of 13.75 GHz-14.5 GHz.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Zhengjia Wang, Yongqing Leng, Xin Qiu, Ming Hui, Youbo Jing, Demin Cao
Summary: This paper proposes a novel reconfigurable filter that can flexibly tune both the center frequency and bandwidth simultaneously. The filter consists of a filter network with Chebyshev properties and a parallel resonator. Through simulation and experiments, it has been proven that this reconfigurable filter has a tunable frequency coverage range of 0.4-2 GHz, with a large tunable range.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Audrey Cayron, Christophe Viallon, Ayad Ghannam, Alessandro Magnani, Thierry Parra
Summary: A 4x4 Butler matrix for millimeter-wave communications is presented in this paper, which utilizes a new 3-D Integrated Passive Devices (IPD) process to achieve a higher performance/compactness trade-off. The design incorporates 3-D transformers and solenoids to optimize couplers and phase shifters and results in a wide bandwidth and low insertion loss.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Abdelali Agouzoul, Emmanuel Simeu, Mohamed Tabaa
Summary: This study aims to improve energy efficiency in buildings, specifically in heating control. By utilizing a model predictive control system based on artificial neural network models and advanced technologies such as FPGAs, the study successfully achieved a significant reduction in heating energy consumption in buildings.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Amjad Iqbal, Muath Al-Hasan, Ismail Ben Mabrouk, Pererik Andreasson, Emil Nilsson, Amor Smida, Tayeb A. Denidni
Summary: This study proposes a compact and frequency-adjustable/reconfigurable substrate integrated waveguide antenna for duplex wireless communications. The antenna achieves frequency reconfigurability and high isolation through the use of resonators and dielectric materials. It has stable radiation properties and a wide frequency range, making it suitable for compact reconfigurable devices.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Peyman PourMohammadi, Hassan Naseri, Noureddine Melouki, Fahad Ahmed, Qi Zheng, Amjad Iqbal, Guy A. E. Vandenbosch, Tayeb A. Denidni
Summary: This article presents a novel low-profile self-duplexing antenna with high isolation for out-band operation applications. The antenna features two patches, one rectangular and one triangular, both utilizing the quarter-mode substrate integrated waveguide (QMSIW) cavity for enhanced performance. Miniaturization is achieved through capacitive slots. The antenna operates at both 5.8 and 9.8 GHz frequencies, with impressive alignment between measured and simulated results. It has compact dimensions and 40 dB isolation between its ports, as well as consistent radiation patterns at both frequencies. The gains at 5.8 and 9.8 GHz are 4.1 and 4.6 dBi, respectively. The antenna's frequency bands can be independently tuned by adjusting the size of the capacitive slots. The article also provides valuable insights into the antenna's functionality and versatility, making it a valuable asset for dual-band wireless communication applications.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Duy-Thai Nguyen, Thanh-Hai Le, Van-Sang Doan, Van-Phuc Hoang
Summary: This paper proposes a method that combines UNet and rootMUSIC algorithm to improve the accuracy of DOA estimation. By converting the covariance matrix of received signals into an ideal antenna array's covariance matrix, and then using rootMUSIC algorithm for DOA estimation, the experimental simulation results show that this method can significantly reduce the error of DOA estimation compared with traditional methods.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Shafaq Kausar, A. U. Kausar, Muhammad Usman Hadi, Hani Mehrpouyan
Summary: This paper presents the design of a high gain multi-beam transmitarray antenna, which is capable of independently steering multiple beams in the azimuth and elevation plane. By using a passive meta-surface, the antenna achieves continuous beam steering by adjusting the phase of the unit cell transmission coefficient. The designed antenna is low cost, robust, and suitable for satellite communication and mm-Wave 5G systems.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)
Article
Engineering, Electrical & Electronic
Jeong-Hun Park, Kyeong-Jun Lee, Seung-Jun Park, Moon-Que Lee
Summary: A new self-oscillating mixer (SOM) has been proposed in this paper, which includes a dielectric resonator (DR) antenna fed by a half-mode substrate integrated waveguide (HMSIW) on an FR4 epoxy substrate using hybrid integrated circuit technique. The high quality factor of the HMSIW resonator and the higher order HEM13 delta mode excitation of the DR radiator contribute to the excellent phase noise performance of the oscillator and the high directivity of the antenna, respectively. The phase noise, estimated LO power, and conversion gain are -102.5 dBc/Hz at 1 MHz offset, 8.74 dBm at an oscillation frequency of 24.15 GHz, and 8.5 dB, respectively. The figure-of-merit for the oscillator is -172.8 dBc/Hz.
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
(2024)