Zobrazeno 1 - 10
of 11 612
pro vyhledávání: '"Array antenna"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024)
Abstract Antenna miniaturization is essential for healthcare applications, and numerous studies have tackled the challenge of presenting miniaturized, reliable designs while maintaining performance. This paper presents a small circularly polarized (C
Externí odkaz:
https://doaj.org/article/fc27101f7c7d4ce1a4f1c071ea1a0db2
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 5, Pp 467-476 (2024)
In airborne radar, false alarms caused by surface clutter returns through antenna sidelobes need to be suppressed to detect the target of interest. Sidelobe blanking is widely used to reject false alarms. Ideally, an auxiliary antenna radiation patte
Externí odkaz:
https://doaj.org/article/48dc73f75ce242ddbd834befcb6a5785
Autor:
Yevhen Yashchyshyn, Peter Tokarsky
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract This study investigates the possibility of increasing the radiation efficiency of printed antennas and arrays by suppressing their inherent surface waves using a metasurface made of quad-split rings (QSR). A symmetrical resonant microstrip d
Externí odkaz:
https://doaj.org/article/dddf569f6b2a43fca99cd39fc80d6258
Publikováno v:
Известия высших учебных заведений России: Радиоэлектроника, Vol 27, Iss 3, Pp 42-51 (2024)
Introduction. When operating antennas in various radio-electronic systems, the influence of phase shifter (PS) failures on the characteristics of phased array antennas, waveguide-slot phased array antennas (WSPAA) in particular, should be taken into
Externí odkaz:
https://doaj.org/article/9ea039e8b942441a9e320d6f425fc1cd
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 4, Pp 393-400 (2024)
In this paper, we propose an all-metal Vivaldi array antenna with dual-slant polarization for high-power jammer systems. The single Vivaldi element of the proposed array consists of radiating flares and an inner cavity to achieve high directivity and
Externí odkaz:
https://doaj.org/article/8e4b8e81070d46bdba508c84115a63cb
Publikováno v:
Results in Engineering, Vol 24, Iss , Pp 103136- (2024)
This study introduces a new technique for achieving dual-band functionality in a printed dipole antenna with integrated balun feeding without additional elements. By employing an optimization algorithm, the fundamental parameters of the antenna are e
Externí odkaz:
https://doaj.org/article/e18d9b9d4d6943048a8b7081f83eb371
Autor:
Twahir Kazema, Bonny Mgawe
Publikováno v:
Cogent Engineering, Vol 11, Iss 1 (2024)
In wireless communication systems, the design and optimization of antenna arrays play a crucial role in achieving desired performance metrics. Many constraints on optimizing antenna arrays to achieve minimum SLL, high Gain, and good impedance matchin
Externí odkaz:
https://doaj.org/article/fcb3d176c3dc4bc5a7fb0d19c2446fa0
Autor:
Adnan Basir Patwary, Ifana Mahbub
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 5, Iss 2, Pp 354-367 (2024)
Wireless power transfer (WPT) using far-field microwave radiation beam can be used to power unmanned aerial vehicles (UAVs) thus eliminating the need to land on the ground to charge. In a distributed WPT system, impulse radio ultrawideband (IR-UWB) s
Externí odkaz:
https://doaj.org/article/c309e5508c214eedbbf2362c13c4067c
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 24, Iss 3, Pp 294-304 (2024)
This article presents a compact, planar, and circularly polarized array antenna operating in the W-band (84.5–110 GHz), with all its prototypes fabricated using a low-cost, traditional, microwave printed circuit board composed of Rogers RT/duroid 5
Externí odkaz:
https://doaj.org/article/62eb824b5d4e4f36b0cde6a59b6fc2a9
Autor:
Ye-Bon Kim, Han Lim Lee
Publikováno v:
Alexandria Engineering Journal, Vol 94, Iss , Pp 226-234 (2024)
In this article, a new compact planar phased array antenna is proposed for blind spot reduction in V2X communications. The proposed antenna can be easily integrated on the front-panel or rear-view side by providing 2-dimensional wide communication co
Externí odkaz:
https://doaj.org/article/a780ea8e9fd74e5fb257379786e7a518