Results 41 to 50 of about 24,859 (195)
Calibration Method for Active Element Patterns corrupted by the Parasitic Effects of Feeding Networks [PDF]
Journal of Electromagnetic Engineering and ScienceThis paper presents a novel method for calibrating the active element patterns (AEPs) of array antennas distorted by feeding networks. These distortions include signal loss, multiple reflection, and parasitic radiation.
Seongjung Kim
doaj +1 more source
A Novel Negative Meander Line Design of Microstrip Antenna for 28 GHz mmWave Wireless Communications [PDF]
Radioengineering, 2020 The increasing applications for nomadic computing have experienced enormous development over the preceding decade. This has eventually caused the lack of bandwidth.
S. Kamal +7 more
doaj
, 2016 Channel estimation for millimeter-wave (mmWave) massive MIMO with hybrid precoding is challenging, since the number of radio frequency (RF) chains is usually much smaller than that of antennas.
Dai, Linglong +3 more
core +1 more source
Hybrid spectrum access for mmWave networks [PDF]
2016 Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net), 2016 Accepted at 15th Annual Mediterranean Ad Hoc Networking Workshop (MED-HOC-NET ...
Rebato, Mattia +4 more
openaire +3 more sources
Advanced Beam Estimation for Antennas Via Patterned Coupling-Line Detection Board in Ka-Band [PDF]
Journal of Electromagnetic Engineering and ScienceIn this research, we present an innovative method for estimating the beams of array antennas. Traditional beam analysis methods rely on placing receiving antennas in the far-field region, which requires moving or rotating the Tx or Rx, and using ...
Seokyeon Hong +4 more
doaj +1 more source
Beam Management for Millimeter Wave Beamspace MU-MIMO Systems
, 2018 Millimeter wave (mmWave) communication has attracted increasing attention as a promising technology for 5G networks. One of the key architectural features of mmWave is the use of massive antenna arrays at both the transmitter and the receiver sides ...
Fang, Xuming, Xiao, Ming, Xue, Qing
core +1 more source
Dynamic Spectrum Sharing in the Age of Millimeter Wave Spectrum Access
, 2020 Next-generation wireless networks are facing spectrum shortage challenges, mainly due to, among other factors, the projected massive numbers of IoT connections and the emerging bandwidth-hungry applications that such networks ought to serve.
Hamdaoui, Bechir +2 more
core +1 more source
Massive MIMO, mmWave and mmWave-Massive MIMO Communications: Performance Assessment with Beamforming Techniques [PDF]
, 2020 Abstract A considerable amount of enabling technologies are being explored in the era of fifth generation (5G) mobile system. The dream is to build a wireless network that substantially improves the existing mobile networks in all performance metrics.
Tewelgn Kebede Engda +2 more
openaire +1 more source
High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes
Advanced Electronic Materials, EarlyView.We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li +6 more
wiley +1 more source
Water Surface Acoustic Wave Detection by a Millimeter Wave Radar
Remote Sensing, 2023 Feature extraction and recognition of underwater targets are important in military and civilian areas. This paper studied water surface acoustic wave (WSAW) detection by a millimeter wave (mmWave) radar.
Yuming Zeng, Siyi Shen, Zhiwei Xu
doaj +1 more source