INFLUENCE OF INTEGRATION CONDITIONS ON THE CHARACTERISTICS OF PLANAR GSM ANTENNAS IN AN ELECTRONIC NAVIGATION SEAL

This article addresses the practical problem of selecting a GSM antenna for an electronic navigation seal intended for the control and monitoring of cargo transportation. Unlike traditional approaches based on datasheet specifications, the focus is placed on investigating antenna performance within a fully assembled device, taking into account the influence of the plastic enclosure, internal metallic components, and the overall electronic layout.
For this purpose, laboratory tests were conducted on 28 commercially available planar GSM antennas operating in the GSM 900 band under conditions closely approximating real-world operation in a navigation seal. The antenna characteristics were evaluated using a standardized measurement setup with a housing mock-up and a reference antenna. The main comparison criterion was the standing wave ratio, which reflects the quality of antenna matching with the radio module and the level of power losses.
Dimensional constraints of the enclosure, which are critically important for practical integration, were also considered during the selection process. Based on a comprehensive analysis, antennas providing stable communication and sufficient energy efficiency were selected and recommended for use in mass-produced electronic navigation seals.
The obtained results confirm that a proper antenna selection is not possible without considering the installation conditions within a specific device, while testing under conditions close to the actual layout represents an important stage in the development of navigation systems operating under constraints of limited internal volume and dense component integration.

1. Reshenie Soveta Evraziiskoi ehkonomicheskoi komissii ot 4 iyulya 2023 goda № 75. (In Russian).

2. Lyu J. Digital Technique-Enabled Container Logistics Supply Chain Sustainability Achievement / J. Lyu, F. Zhou, Y. He // Sustainability. – 2023. – № 15. – R. 16014. https://doi.org/10.3390/su152216014. (In English).

3. Smart logistics based on the internet of things technology: An overview / Y. Ding et al // Int. J. Logist. Res. Appl. – 2021. – № 24. – R. 323-345. (In English).

4. Durajczyk P. Possibilities of Using Inland Navigation to Improve the Efficiency of Interurban Freight Transport with the Use of the RIS System – Case Study of the Route Opole–Szczecin / P. Durajczyk, N. Drop, P. Niedzielski // Sustainability. – 2024. – № 16. – R. 10754. https://doi.org/10.3390/su162310754. (In English).

5. Multi-aspect applications and development challenges of digital twin-driven management in global smart ports / K. Wang et al // Case Stud. Transp. Policy. – 2021. – № 9. – R. 1298-1312. (In English).

6. Daschkovska K. Decision Support in Supply Chains Based on E-Seals Secure System / K. Daschkovska // IFAC-PapersOnLine. – 2017. – Vol. 50, Issue 1. – P. 14224-14229. https://doi.org/10.1016/j.ifacol.2017.08.2096. (In English).

7. Natabita A. Implementation of Electronic Seal Cargo at Cikarang Dry Port to Support National Logistics System / A. Natabita, N. Nurillah, K. Komang // Journal Indonesia : Manajemen Informatika dan Komunikasi. – 2024. – № 5. R. 1352-1361. https://doi.org/10.35870/jimik.v5i2.618. (In English).

8. Smart anti-theft vehicle tracking system for Bangladesh based on Internet of Things / M.S. Uddin et al // 2017 4th International Conference on Advances in Electrical Engineering (ICAEE), Dhaka, Bangladesh. – 2017. – R. 624-628. https://doi.org/10.1109/ICAEE.2017.8255432. (In English).

9. Jiang Xia. Research and Practice of the E-seal / Jiang Xia, Meng Shu, Li, Qingli // E-lock system based on mobile internet. – 2017. https://doi.org/10.2991/iccia-17.2017.42. (In English).

10. ID-based secure real-time tracking system / C.Y. Yeun et al // International Journal of Advanced Logistics. – 2015. – № 4(2). – R. 100-114. https://doi.org/10.1080/2287108X.2015.1049684. (In English).

11. Securing E-Seal real time tracking system for Internet of Things /M. al Shemaili et al // 2013 8th International Conference for Internet Technology and Secured Transactions, ICITST. – 2013. – R. 65-69. https://doi.org/10.1109/ICIST.2013.6747506. (In English).

12. Seyran Khademi, Zoubir Irahhauten, and Alle-Jan van der Veen. 60 GHz Wireless Link Within Metal Enclosures: Channel Measurements and System Analysis. arXiv:1311.4439v1 [cs.IT]. – 2013. (In English).

13. Yavuz Yaman, Predrag Spasojevic. An Intra-Cluster Model with Diffuse Scattering for mmWave Communications: RT-ICM. Submitted on 20 May 2019. https://doi.org/10.48550/arXiv.1905.08295. (In English).

14. Fu J. 300 GHz Channel Characterization of Chip-to-Chip Communication in Metal Enclosure / J. Fu, P. Juyal, A. Zajić // 2019 13th European Conference on Antennas and Propagation (EuCAP), Krakow, Poland, 2019, R. 1-5. (In English).

15. Zhang Yueping. An Overview of the Development of Antenna-in-Package Technology for Highly Integrated Wireless Devices / Zhang Yueping, Mao Junfa // Proceedings of the IEEE. – 2019. – P. 1-16. https://doi.org/10.1109/JPROC.2019.2933267. (In English).

16. Institut kosmicheskoi tekhniki i tekhnologii https://istt.kz. (In Russian).

17. Balanis C.A. Antenna theory: analysis and design / C.A. Balanis // John wiley & sons. – 2016. (In English).