Modeling and Analysis of Airborne Conformal Arrays Obstructed by Fixed Blockage

Zeng, Yuanchen; Duan, Baoyan; Lou, Shunxi; Zhang, Shuo

doi:10.1109/tap.2021.3138276

Cited by 5 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sensitivity contours decrease concentrically around these points, forming ellipsoidal distributions. Similarly, according to Figures 11b and 12b, the y-direction sensitivity exhibits a similar distribution pattern around the four array elements (10,5), (11,5), (10,16), and Based on Figures 11a and 12a, the maximum sensitivity of the electric field strength in the x-direction occurs at four array elements: (5,10), (5,11), (16,10), and (16,11). The sensitiv-ity contours decrease concentrically around these points, forming ellipsoidal distributions.…”

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 66%

“…Electronics 2024, 13, x FOR PEER REVIEW 15 of 23 (11,16). From Figures 11c and 12c, the maximum sensitivity of the electric field strength in the z-direction is observed at the central array elements (10,10), (10,11), (11,10), and (11,11), with the sensitivity decreasing concentrically from these points.…”

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 91%

“…Furthermore, because the z-direction position of the array element has the greatest impact on the antenna's electrical performance, when considering the impact of positional deviations in the three directions comprehensively, it is easy to conclude that the element located in the center still has the greatest impact on the antenna's electrical performance. Based on Figures 11a and 12a, the maximum sensitivity of the electric field strength in the x-direction occurs at four array elements: (5,10), (5,11), (16,10), and (16,11). The sensitivity contours decrease concentrically around these points, forming ellipsoidal distributions.…”

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 97%

“…Additionally, representative numerical settings are used to validate the method under different cases. Reference [11] proposed a method to address the deterioration of the electrical performance in airborne array antennas caused by blockages from fixed obstacles. It identified the main shadow areas affected by electromagnetic propagation when the array antenna encounters fixed obstructions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sensitivity-Based Electromagnetic Performance Calculation Model for Radome-Covered Array Antennas

Wang,

Wang

et al. 2024

Electronics

View full text Add to dashboard Cite

Antenna design and optimization must ensure robust electrical performance, making its analysis a crucial step in all antenna design processes. Traditionally, this analysis involves setting up various cases after establishing the calculation model, comparing the performance of each case, and summarizing the impact of relevant factors to guide design and optimization. However, this method is time-consuming and inefficient. This paper proposes a sensitivity-based approach for analyzing antenna electrical performance, using a radome-covered array antenna as an example. First, we derive the formulas for calculating the antenna’s electrical performance and its sensitivity to the current amplitude, array element position, and radome thickness. We then design comparative experiments to analyze the antenna’s performance using the sensitivity-based method and the traditional case enumeration method. Comparing the conclusions of both methods, we find that they yield the same results regarding antenna performance. The proposed sensitivity-based method offers a quantitative evaluation of various influencing factors and provides a more scientific and systematic approach to analyzing antenna electrical performance.

show abstract

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 66%

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 91%

Section: Array Element Location Impact Analysis (Case 2-10)mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sensitivity-Based Electromagnetic Performance Calculation Model for Radome-Covered Array Antennas

Wang,

Wang

et al. 2024

Electronics

View full text Add to dashboard Cite

show abstract

“…However, the accuracy of those models will be reduced due to the EM properties of the MIMO system. For example, the work in [18] complements numerical methods to make up for the problem of using only Fresnel approximation in airborne antenna design. Moreover, the main idea of the emerging intelligent reflective surface (IRS) is to lay out the controllable 2 > REPLACE THIS LINE WITH YOUR MANUSCRIPT ID NUMBER (DOUBLE-CLICK HERE TO EDIT) < Fig.…”

Section: Introductionmentioning

confidence: 99%

An Electromagnetic Information Theory Based Model for Efficient Characterization of MIMO Systems in Complex Space

et al. 2023

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

It is the pursuit of a multiple-input-multiple-output (MIMO) system to approach and even break the limit of channel capacity. However, it is always a big challenge to efficiently characterize the MIMO systems in complex space and get better propagation performance than the conventional MIMO systems considering only free space, which is important for guiding the power and phase allocation of antenna units. In this manuscript, an Electromagnetic-Information-Theory (EMIT) based model is developed for efficient characterization of MIMO systems in complex space. The group-T-matrix-based multiple scattering fast algorithm, the mode-decomposition-based characterization method, and their joint theoretical framework in complex space are discussed. Firstly, key informatics parameters in free electromagnetic space based on a dyadic Green's function are derived. Next, a novel group-T-matrix-based multiple scattering fast algorithm is developed to describe a representative inhomogeneous electromagnetic space. All the analytical results are validated by simulations. In addition, the complete form of the EMIT-based model is proposed to derive the informatics parameters frequently used in electromagnetic propagation, through integrating the mode analysis method with the dyadic Green's function matrix. Finally, as a proof-or-concept, microwave anechoic chamber measurements of a cylindrical array is performed, demonstrating the effectiveness of the EMIT-based model. Meanwhile, a case of image transmission with limited power is presented to illustrate how to use this EMIT-based model to guide the power and phase allocation of antenna units for real MIMO applications.

show abstract

Two-Step Adaptive Anti-Mainlobe-Jamming Processing for Polarimetric Conformal Arrays

Huang

Cheng

et al. 2023

2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW)

View full text Add to dashboard Cite

Modeling and Analysis of Airborne Conformal Arrays Obstructed by Fixed Blockage

Cited by 5 publications

References 26 publications

Sensitivity-Based Electromagnetic Performance Calculation Model for Radome-Covered Array Antennas

Sensitivity-Based Electromagnetic Performance Calculation Model for Radome-Covered Array Antennas

An Electromagnetic Information Theory Based Model for Efficient Characterization of MIMO Systems in Complex Space

Two-Step Adaptive Anti-Mainlobe-Jamming Processing for Polarimetric Conformal Arrays

Contact Info

Product

Resources

About