where each antenna array unit comprises a plurality of antenna elements with different azimuth angles, and the different azimuth angles of the antenna elements in the each antenna array unit form a vector, where the vectors corresponding to the antenna array units constitute a vector matrix that ma...
This paper introduces the implementation of 4 x 4 Butler matrix fed antenna array system using substrate integrated folded waveguide (SIFW) technology. The antenna array system generates four directive beams in different angular directions with gain and half power beam width (HPBW) of 6.43, 6.43,...
The present invention provides a correlation-matrix feedback method and system for an antenna array. The method comprises steps of: selecting, at a receiving end, a codeword from a predetermined correlation-matrix codebook comprising a plurality of codewords according to a predetermined criterion to...
Antenna array self-calibration algorithm with sensor position uncertainties in unknown colored noise fields A self-calibration algorithm that can calibrate the sensor position in nonuniform noise fields is proposed.First,the colored noise covariance matrix is est... DL Chen,LU Huan-Zhang,HX Wang - ...
Butler matrixMeta-materialBeam-steering5GSYSTEMSBANDIn this paper, a sub-6 beam-steerable antenna array system is introduced. The main radiating element in... A Khairy,A Elboushi,AA Shaalan,... - 《Analog Integrated Circuits & Signal Processing》 被引量: 0发表: 2023年 An affordable millimete...
Mutual coupling between each antenna element is unavoidable in a MIMO system, and it has a detrimental impact on the antenna’s properties. It degrades pattern correlation and radiation efficiency. In MIMO and array antennas, the decoupling approach is used to suppress mutual coupling (improve ...
Figure 16.1 is a conceptual description of the transmission array antenna system. This array antenna transmits the signal in the direction defined by the control phases w[n]. Every modulated symbol, s[n], is weighted differently at each antenna. The weighted signal at each antenna is expressed...
The proposed approach is demonstrated on a four-element array for 5G MIMO applications. Each radiating element in the array is constituted from a 3 × 3 matrix of interconnected resonant elements. The technique involves (1) incorporating matching stubs within the resonant elements, (2) ...
antenna array with serviceability check-up system incorporating check- signal generator; in addition, it is provided with spectrum analyzer, second microwave switch, and directional couplers, as many as there are radiators, whose inputs are connected to outputs of first pattern-forming matrix, first...
[82], this paper used thedeep learningCNNalgorithm in mMIMO to applyantenna selectionand hybridbeamforming. The author designed two CNN to accept the input as thechannel matrixand produce the best output antenna sub-array. The selected part of the channel matrix feeds to the second CNN, and...