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Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity

Publication ,  Journal Article
Xiao, P; Li, J; Qiu, Y; Liu, Z; Zhang, C; Li, G; Joines, WT
Published in: IEEE Transactions on Antennas and Propagation
May 1, 2022

The electromagnetic (EM) coupling effects of microstrip antennas have become increasingly prominent in complicated electric systems. In this article, a hybrid method is proposed based on the combination of cavity eigenmode theory and BLT equation. First, the internal electric field generated by the transmission lines inside the resonant cavity is obtained via cavity eigenmode theory. Then, the coupling mechanism between the electric field and microstrip antenna is established through radiation coupling interference. On this basis, the BLT equation and numerical integration method are applied to determine the induced voltage at the target microstrip antenna. Eventually, the proposed approach is validated by a full-wave simulation method and the impact of the microstrip antenna parameters on the coupling interference is discussed. This article provides an analytical method for calculating the coupling of a microstrip antenna. Compared with numerical simulation, this method has certain potential advantages in solving closed electrically large objects. Furthermore, duplicate modeling can be avoided in the same type of scenario.

Duke Scholars

Published In

IEEE Transactions on Antennas and Propagation

DOI

EISSN

1558-2221

ISSN

0018-926X

Publication Date

May 1, 2022

Volume

70

Issue

5

Start / End Page

3515 / 3522

Related Subject Headings

  • Networking & Telecommunications
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering
 

Citation

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Xiao, P., Li, J., Qiu, Y., Liu, Z., Zhang, C., Li, G., & Joines, W. T. (2022). Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity. IEEE Transactions on Antennas and Propagation, 70(5), 3515–3522. https://doi.org/10.1109/TAP.2021.3137232
Xiao, P., J. Li, Y. Qiu, Z. Liu, C. Zhang, G. Li, and W. T. Joines. “Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity.” IEEE Transactions on Antennas and Propagation 70, no. 5 (May 1, 2022): 3515–22. https://doi.org/10.1109/TAP.2021.3137232.
Xiao P, Li J, Qiu Y, Liu Z, Zhang C, Li G, et al. Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity. IEEE Transactions on Antennas and Propagation. 2022 May 1;70(5):3515–22.
Xiao, P., et al. “Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity.” IEEE Transactions on Antennas and Propagation, vol. 70, no. 5, May 2022, pp. 3515–22. Scopus, doi:10.1109/TAP.2021.3137232.
Xiao P, Li J, Qiu Y, Liu Z, Zhang C, Li G, Joines WT. Eigenmode-BLT-Based Method for Calculating the Coupling to Microstrip Antenna Inside a Cavity. IEEE Transactions on Antennas and Propagation. 2022 May 1;70(5):3515–3522.

Published In

IEEE Transactions on Antennas and Propagation

DOI

EISSN

1558-2221

ISSN

0018-926X

Publication Date

May 1, 2022

Volume

70

Issue

5

Start / End Page

3515 / 3522

Related Subject Headings

  • Networking & Telecommunications
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 4006 Communications engineering
  • 1005 Communications Technologies
  • 0906 Electrical and Electronic Engineering