Results 101 to 110 of about 19,229 (302)
Leveraging Mutual Coupling in Antenna-Amplifier Systems for Increased Reconfigurability
IEEE Journal of MicrowavesTraditional antenna array design aims at minimising the mutual coupling between the elements. When elements are fully isolated, the active impedance seen by the amplifiers does not depend on the beam steering angle.
Jaanus Kalde +4 more
doaj +1 more source
A Compact 5G Decoupling MIMO Antenna Based on Split-Ring Resonators
International Journal of Antennas and Propagation, 2019 A compact planar multiple-input multiple-output (MIMO) antenna array for 5G band is proposed in this paper. To improve the isolation of compact microstrip antenna array, this paper mainly presents an electromagnetic resonant ring method for MIMO antenna ...
Ziyu Xu, Qisheng Zhang, Linyan Guo
doaj +1 more source
A Continuous Beam Steering Slotted Waveguide Antenna Using Rotating Dielectric Slabs
, 2018 The design, simulation and measurement of a beam steerable slotted waveguide antenna operating in X band are presented. The proposed beam steerable antenna consists of a standard rectangular waveguide (RWG) section with longitudinal slots in the broad ...
Ghasemi, Amirhossein +1 more
core +1 more source
Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion
Advanced Robotics Research, EarlyView.This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley +1 more source
A Review of Mutual Coupling in MIMO Systems
IEEE Access, 2018 This paper provides a systematic review of the mutual coupling in multiple-input multiple-output (MIMO) systems, including the effects on performances of MIMO systems and various decoupling techniques.
Xiaoming Chen, Shuai Zhang, Qinlong Li
doaj +1 more source
Surface impedance for electromagnetic fields over a dielectric-coated circular cylinder [PDF]
, 2013 For small or medium size conformal array antennas in terms of the wave length, modal solutions in spectral domain for mutual coupling analysis are convenient for canonical shapes such as circular cylinder [1] or sphere [2], but as the antenna ...
García Aguilar, Andrés +2 more
core
An AI‐Enabled All‐In‐One Visual, Proximity, and Tactile Perception Multimodal Sensor
Advanced Robotics Research, EarlyView.Targeting integrated multimodal perception of robots, an AI‐enabled all‐in‐one multimodal sensor is proposed. This sensor is capable of perceiving three types of modalities, including vision, proximity, and tactility. By toggling an ultraviolet light and adjusting the camera focus, it switches smoothly between multiple perceptual modalities, enabling ...
Menghao Pu +7 more
wiley +1 more source
International Journal of Antennas and Propagation, 2011 In this paper, the performance of generalized channel inversion (GCI) technique for a multiuser MIMO system operating under antenna mutual coupling conditions is investigated.
Feng Wang +2 more
doaj +1 more source
Directivity and spacing for the antenna elements [PDF]
, 1983 The optimum design choice for the MST radar antenna was considered. The following factors are required: directivity and gain; beam width and its symmetry; sidelobe levels, near and wide angle; impedance matching; feeder network losses; polarization ...
Koshy, V. K.
core +1 more source
Microstrip antenna array mutual coupling suppression using coupled polarisation transformer
IET Microwaves, Antennas & Propagation, 2017 This study presents a periodic defected ground structure (PDGS) to suppress the mutual coupling (MC) between coplanar antenna elements in a multiple‐input and multiple‐output (MIMO) communication system. The proposed PDGS consists of three defected ground structure units. They are etched away from the ground plane between antenna elements.
Kun Wei +3 more
openaire +1 more source