Performance prediction for array antennas with element position error based on coupled structural-electromagnetic model

Kang, Mingkui; Wang, Y.; Yin, Lei; Wang, C.S.; Tang, Bao Fu; Zhong, Jingni

doi:10.1049/cp.2015.1498

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kang focused on APAA. Te SET coupling of the antenna is studied in-depth, and a structural-electromagnetic-thermal three-feld coupling model is established, which can be used to quantitatively analyse the infuence of structure deformation and temperature change on the electric performance of APAA [79][80][81].…”

Section: Efect Of Antenna Array Structure Errormentioning

confidence: 99%

“…Figure 9 shows the schematic diagram of the SET coupling of the APAA in a missile. [79][80][81]. Te important factors were considered, such as element position error, direction defection, element mutual coupling, and device performance temperature drift, which makes an outstanding contribution to the SET coupling research of APAA.…”

Section: Structural-electromagnetic-termal Coupling Modelmentioning

confidence: 99%

See 1 more Smart Citation

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Wang

et al. 2023

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

Active phased array antenna (APAA) is a representative of complex electronic equipment, and it plays significant roles in scenarios such as battlefield situation perception, aviation guidance, and communication. It has become the core equipment in land, navigation, and aeronautical applications. With the continuous improvement of technical changes and military requirements, the working frequency band, pointing accuracy, gain, and low sidelobe level of APAA increase, and the multi-disciplinary design contradiction between antenna electrical performance and structure and temperature becomes increasingly prominent. As a result, the electrical performance of APAA in service is prone to be affected by the external complex environments. The structural-electromagnetic-thermal (SET) coupling problem has become a key problem restricting the development of APAA. This paper has summarized the structural features and environmental loads of advanced APAA on different platforms and provided design basis and principle for antenna designer. And then the SET coupling theory of APAA has been introduced, which can be applied in both the design and manufacturing stage, as well as the performance control technology in service environment of APAA. This theory helps to analyze the impact of environmental factors, such as antenna structure deformation, radome high-temperature ablation, and feed errors, on the antenna's performance. For 128 × 768 spaceborne array antenna, in the range of 25∼85°C, the gain of antenna decreases with the increase of operating temperature and decreases by 0.015 dB with each increase of 1°C. The key design parameters in the fields of antenna manufacturing accuracy, efficient heat dissipation, and lightweight design are also analysed; for 32 × 32 rectangular planar phased array antenna, the gain of antenna decreases by 2.715 dB when the random error of installation position in x, y, and z direction reaches 1/10 of the wavelength. In addition, condition monitoring, displacement field reconstruction, and electrical performance compensation of APAA have also been touched to help engineers maintain and guarantee the antenna performance throughout its life cycle. Finally, the future research direction of SET technology of APAA has been discussed, and SET technology is extended to more fields such as antenna parameter uncertainty, high-frequency circuit electronics manufacturing, and electronic equipment performance guarantee.

show abstract

Section: Efect Of Antenna Array Structure Errormentioning

confidence: 99%

Section: Structural-electromagnetic-termal Coupling Modelmentioning

confidence: 99%

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Wang

et al. 2023

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…Thirdly, some works introduced the linear combination of random error and systematic distortion to analyze their effect on antenna performance. In [19,20], the sum of random error and systematic error was regarded as the structure error item, used to analyze the performance of distorted array antenna. However, in practice the degrees of random error and systematic error show great differences; the linear combination could mitigate the effect of random error when there is big difference between the degrees of random and systematic errors.…”

Section: Introductionmentioning

confidence: 99%

Effect of Randomness in Element Position on Performance of Communication Array Antennas in Internet of Things

Wang

Yang

et al. 2018

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

As a critical component for wireless communication, active phased array antennas face the restrictions of creating effective performance with the effect of randomness in the position of the array element, which are inevitably produced in the manufacturing and operating process of antenna. A new method for efficiently and effectively evaluating the statistic performance of antenna is presented, with consideration of randomness in element position. A coupled structural-electromagnetic statistic model for array antenna is proposed from the viewpoint of electromechanical coupling. Lastly, a 12×12 planar array is illustrated to evaluate the performance of antenna with the saddle-shaped distortion and random position error. The results show that the presented model can obtain the antenna performance quickly and effectively, providing an advantageous guidance for structural design and performance optimization for array antennas in wireless application.

show abstract

Compensation of phased array antenna electrical performance based on improved genetic algorithm

Zhang,

Wang,

et al. 2024

Journal of Electromagnetic Waves and Applications

View full text Add to dashboard Cite

Performance prediction for array antennas with element position error based on coupled structural-electromagnetic model

Cited by 4 publications

References 0 publications

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Structural-Electromagnetic-Thermal Coupling Technology for Active Phased Array Antenna

Effect of Randomness in Element Position on Performance of Communication Array Antennas in Internet of Things

Compensation of phased array antenna electrical performance based on improved genetic algorithm

Contact Info

Product

Resources

About