Broadband Antennas and Antenna Arrays [PDF]
International Journal of Antennas and Propagation, 2014 Abstract is not available in fulltext.
Dou, Wenbin +3 more
openaire +2 more sources
Study on deployment mechanism of the satellite umbrella antenna
Hangkong gongcheng jinzhan, 2023 The relaxation and jumping from slot of the power rope of the antenna deployment mechanism are likely to occur in the process of antenna deployment and folding.
LIU Tingting +3 more
doaj +1 more source
A Tunable low Pass Filter Based on Transmission Lines With Tunable Input/Output Impedance
Frontiers in Physics, 2022 A tunable low pass filter (TLPF) based on the tuning of input/output impedance was presented in this letter. The TLPF mainly consisted of improved quarter-wavelength stubs.
Zhonghai Zhang +5 more
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A Gap Waveguide-Based Compact Rectangular Waveguide to a Packaged Microstrip Inline Transition
Applied Sciences, 2020 In this paper two different simple to design and easy to manufacturing transitions from a microstrip to rectangular waveguide based on ridge and groove gap waveguides are studied.
José M. Pérez-Escudero +3 more
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Double-Layer Ku/K Dual-Band Orthogonally Polarized High-Efficiency Transmitarray Antenna
IEEE Access, 2021 This paper presents a double-layer, dual-band, orthogonally polarized, highly efficient transmitarray antenna (TA) operated in the Ku/K band (14 GHz/20 GHz) for millimeter wave (MMW) wireless communication systems (WCS).
MingBo Cai +4 more
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Investigation of Frequency Scanning Printed Bruce Array Antenna
IEEE Access, 2020 A printed edge-fed counterpart of wire Bruce array antenna, with open-stopband mitigation at broadside, is presented. The proposed antenna comprises of 11 meandered unit-cells periodically modulated in congruence with wire Bruce array antenna's theory ...
Zeeshan Ahmed +3 more
doaj +1 more source
Secure Communication for Uplink Cellular Networks Assisted with Full-Duplex Device-to-Device User
Future Internet, 2020 In this paper, the secure communication based on the full-duplex (FD) device-to-device (D2D) in cellular networks is proposed. For the proposed scheme, the novel model is established, in which a D2D user is played as a relay operating in FD mode to ...
Xin Song, Lin Xia, Siyang Xu, Yue Wang
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Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System
Sensors, 2021 A calibration method for a high-resolution hybrid MIMO turntable radar imaging system is presented. A line of small metal spheres is employed as a test pattern in the calibration process to measure the position shift caused by undesired antenna effects ...
Ha Hoang +3 more
doaj +1 more source
Remote Sensing for Plant Water Content Monitoring: A Review
Remote Sensing, 2021 This paper reviews the different remote sensing techniques found in the literature to monitor plant water status, allowing farmers to control the irrigation management and to avoid unnecessary periods of water shortage and a needless waste of valuable ...
Carlos Quemada +6 more
doaj +1 more source
Wideband planar dipole based on dual-layer artificial magnetic conductor
The Journal of Engineering, 2019 A wideband planar dipole based on dual-layer artificial magnetic conductor (AMC) is designed. First, the size of dual-layer AMC is reduced by more than half, and the in-phase band is wider than the single-layer AMC.
Suyang Shi +3 more
doaj +1 more source