Results 21 to 30 of about 1,340 (158)
Microwave phased array for aerological radar [PDF]
ITM Web of Conferences, 2019 The use of radars with phased antenna arrays in aerological atmospheric sounding systems significantly increases the technical characteristics of the radio channel, ensures reliable auto-tracking in the near zone at high angular velocities of the ...
Shabunin Sergey +3 more
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Analysis of beampattern dwell time for planar frequency diverse array
IET Signal Processing, 2021 Frequency diverse array (FDA) has received much attention due to its both range–angle‐dependent beampattern. However, most of the existing works focus on the linear FDA, and time‐varying characteristics of its beampattern only give a rough qualitative ...
Hui Chen, Zi‐Hao Li, Wen‐Qin Wang
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Applied SciencesNew configurations of 2-D phased arrays are proposed in this paper for reducing the number of phase shifters. This design methodology is based on the use of a novel coherently radiating periodic structures (CORPSs) block for 2-D phased arrays.
Gilberto Calvillo +4 more
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60 GHz compact broadband antenna arrays with wide-angle beam steering
The Journal of Engineering, 2019 Highly integrated multilayered printed circuit board-based patch antenna arrays are proposed in this study for 60 GHz wireless communications. Electromagnetic coupling between two stacked patches is used to achieve
Imran Aziz +6 more
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Analysis of the influence of radiators basing errors in the monopulse phased array antenna aperture on its characteristics [PDF]
ITM Web of Conferences, 2019 The influence of radiators basing errors in the flat monopulse phased array antenna with spatial excitation on the beam forming accuracy is researched.
Rusov Yury
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Electronics Letters, 2023 In this letter, an analytical method for the beampattern synthesis of symmetric nonuniform array is proposed. This method consists of two steps. In the first step, it acquires a real symmetric excitation by the convex optimization method to attain a ...
Fei Shi, Mengkai Hu, Xiuquan Dou
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IEEE Access, 2023 In this article, a multiport beamforming system based on the reconfigurable waveguide phased antenna array is presented, which is fed by the microstrip single-layer multiport feeding network.
Yifang Wei +2 more
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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 +6 more
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An efficient compact blazed grating antenna for optical phased arrays
JPhys PhotonicsPhased arrays are vital in communication systems and have received significant interest in the field of optoelectronics and photonics, enabling a wide range of applications such as LiDAR, holography, and wireless communication. In this work, we present a
Henna Farheen +4 more
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Phase Calibration of Distributed Antenna Arrays
IEEE Communications Letters, 2023 Antenna arrays can be either reciprocity calibrated (R-calibrated), which facilitates reciprocity-based beamforming, or fully calibrated (F-calibrated), which additionally facilitates transmission and reception in specific physical directions. We first expose, to provide context, the fundamental principles of over-the-air R- and F-calibration of ...
Erik G. Larsson, Joao Vieira
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