Results 31 to 40 of about 2,238 (164)

Design of a 2-Bit Reconfigurable UWB Planar Antenna Array for Beam Scanning Application

IEEE Open Journal of Antennas and Propagation, 2023
Reconfigurable antennas have been widely employed for beam scanning in recent years. However, such antennas are usually limited by narrow bandwidth. To overcome this challenge, we present a linearly polarized 2-bit ultra-wideband (UWB) antenna array in C-
Zuqi Fang, Hanqing Yang, Yuan Gao, Feng Zhai, Jun Wei Wu, Qiang Cheng, Tie Jun Cui   +6 more
doaj   +1 more source

A low‐profile wideband spiral antenna with multiple stopbands

IET Microwaves, Antennas & Propagation, 2023
A low‐profile spiral antenna with three stopbands (2.55 GHz band, 3.85 GHz band, and 5.45 GHz band) is developed. The stopbands are generated using three pairs of slots cut into the spiral arms.
Masahiro Tanabe, Hisamatsu Nakano
doaj   +1 more source

Current Sheet Antenna Array and 5G: Challenges, Recent Trends, Developments, and Future Directions

Sensors, 2022
Designing an ultra-wideband array antenna for fifth generation (5G) is challenging for the antenna designing community because of the highly fragmented electromagnetic spectrum.
Sajjad Hussain, Shi-Wei Qu, Abu Bakar Sharif, Hassan Sani Abubakar, Xiao-Hua Wang, Muhammad Ali Imran, Qammer H. Abbasi   +6 more
doaj   +1 more source

High-precision All-MXene-printed flexible ultra-wideband millimeter-wave endfire antennas based on spoof surface plasmon polaritons for wireless communication

npj Flexible Electronics
Flexible millimeter-wave (mmWave) antennas hold great promise for conformal integration across diverse devices and high-speed, large-channel capacity in 5G/6G wireless communications.
Feifei Lin, Hao Ni, Weiwei Zhao, Leilei Liu, Yijie Zhang, Zijing Huang, Wenjin Wang, Qixiang Wang, Tushun Wang, Yan Bai, Ning Ding, Shujuan Liu, Wei Huang, Qiang Zhao   +13 more
doaj   +1 more source

Compact dielectric impulse radiating antenna with a flat feed arm structure for low‐frequency gain enhancement

Electronics Letters, 2023
A compact dielectric impulse radiating antenna (IRA) with flat coplanar conical plate (CCP) feed arms was proposed for low‐frequency gain enhancement. An empirical equation was proposed to predict the characteristic impedance of the CCP arms submerged in
Junseop Lee, Kangwook Kim
doaj   +1 more source

Design of Ultra Wideband Antenna

International Journal of Recent Technology and Engineering (IJRTE), 2020
In this paper, A coplanar waveguide (CPW) ultra-wideband(UWB) antenna is designed, analyzed and simulated by computer simulation technology(CST). The proposed antenna is fabricated on FR-4 dielectric substrate. A microstrip feed line is used to excite the antenna.The ground plane is slotted to improve the impedance bandwidth (BW).
Anjaneyulu Katuru*, Sudhakar Alapati
openaire   +1 more source

Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array

IET Microwaves, Antennas & Propagation
Ultra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas.
Won Min Choi, Taeyong Jeong, Dong Hwan Lee, Jun Hee Kim, Dong Geun Lee, Keum Cheol Hwang   +5 more
doaj   +1 more source

Design of a novel high gain dual-band common-aperture array antenna

Dianzi Jishu Yingyong, 2019
This paper presents a new ultra-wideband(UWB) high-gain dual-band common-aperture array antenna. The antenna consists of four T-shaped dual-polarized antennas, a 6×6 waveguide slot array antenna, and a circular metal substrate. The dual-polarized antenna
Qiao Xuguang, Jiang Zhaoneng, Zhao Xiaoyan, Shui Mingyue, Lu Xiaochi, Zhang Bangbang   +5 more
doaj   +1 more source

Ultra Low-Loss Si Substrate for On-Chip UWB GHz Antennas

IEEE Journal of the Electron Devices Society, 2019
In this paper, measurements and simulations of miniature monopole antennas for ultra-wideband (UWB) GHz intra- and inter-chips communication and biomedical applications are presented.
N. Andre, M. Rack, L. Nyssens, C. Gimeno, D. Oueslati, K. Ben Ali, S. Gilet, C. Craeye, J.-P. Raskin, D. Flandre   +9 more
doaj   +1 more source

Ultra‐wideband antenna system for in‐band full‐duplex applications

IET Microwaves, Antennas & Propagation, 2021
In this study, we present an ultra‐wideband full‐duplex system constituted of a wideband 4‐element Vivaldi array and wideband microstrip‐to‐slotline baluns.
Hadi Hijazi, Marc Le Roy, Raafat Lababidi, Denis Le Jeune, Andre Pérennec   +4 more
doaj   +1 more source