Experimental Evaluation of the Shadowing of a Planar Antenna Caused by a Quadcopter Frame

Ibrahim Heydarov; Deniss Brodnevs

doi:10.2478/ecce-2020-0006

Experimental Evaluation of the Shadowing of a Planar Antenna Caused by a Quadcopter Frame

Authors

Ibrahim Heydarov Azerbaijan Airlines
Deniss Brodnevs Riga Technical University https://orcid.org/0000-0003-3296-187X

DOI:

https://doi.org/10.2478/ecce-2020-0006

Keywords:

3G, 4G, Antenna pattern, Antenna shadowing, Copter, LTE, Mobile data transfer, Multirotor, Planar antenna, Quadrotor, RPAS, UAV

Abstract

The use of mobile data transfer can significantly increase the range of the remote-controlled operation of multirotor aerial vehicles. The planar antennas of ready-to-use 3G/LTE cellular communication dongles provide a low-cost and lightweight communication solution. In this paper, antenna shadowing caused by a quadcopter frame is experimentally investigated. The communication module is a 3G/LTE “Huawei 3372h” dongle with two planar built-in antennas and a receiver diversity function. The quadcopter frame is a widely used “F450” with Nylon arms and a PCB centre. It has been found that in order to minimize the antenna shadowing effect, planar antennas should be installed at the bottom of the frame, in parallel with the frame, with an air gap not less than the distance to the outer boundary of the reactive Near Field (NF).

References

International Civil Aviation Organization (ICAO), “Remotely Piloted Aircraft System (RPAS) Concept of Operations (CONOPS) for International IFR,” p. 22, 2014.

National Instruments, “3GPP Release 15 Overview,” IEEE Commun. Soc. White Pap., 2018.

S. D. Muruganathan, X. Lin, H.-L. Maattanen, Z. Zou, W. A. Hapsari, and S. Yasukawa, “An Overview of 3GPP Release-15 Study on Enhanced LTE Support for Connected Drones,” pp. 1–7, 2018.

ITU, “ITU-T G.1010 End-User Multimedia QoS Categories Series G: Transmission Systems and Media, Digital Systems and Networks Quality of Service and Performance,” 2001.

ITU, “ITU-T Y.1541 Network performance objectives for IP-based services,” 2011.

ITU, “ITU-R SM.2153-7 Technical and operating parameters and spectrum use for short-range radiocommunication devices,” ITU - Spectr. Manag., vol. 1, 2019.

D. W. Matolak and R. Sun, “Air-Ground Channel Characterization for Unmanned Aircraft Systems-Part I: Methods, Measurements, and Models for Over-Water Settings,” IEEE Trans. Veh. Technol., vol. 66, no. 1, 2017. https://doi.org/10.1109/TVT.2016.2530306

R. Sun and D. W. Matolak, “Air-Ground Channel Characterization for Unmanned Aircraft Systems Part II: Hilly and Mountainous Settings,” IEEE Trans. Veh. Technol., vol. 66, no. 3, 2017. https://doi.org/10.1109/TVT.2016.2585504

D. W. Matolak, H. Jamal, and R. Sun, “Spatial and frequency correlations in two-ray air-ground SIMO channels,” in IEEE International Conference on Communications, 2017. https://doi.org/10.1109/ICC.2017.7996954

Y. S. Meng and Y. H. Lee, “Study of shadowing effect by aircraft maneuvering for air-to-ground communication,” AEU - Int. J. Electron. Commun., vol. 66, no. 1, 2012. https://doi.org/10.1016/j.aeue.2011.04.006

Y. S. Meng and Y. H. Lee, “Measurements and characterizations of airto-ground channel over sea surface at C-band with low airborne altitudes,” IEEE Trans. Veh. Technol., vol. 60, no. 4, 2011. https://doi.org/10.1109/TVT.2011.2136364

M. Heino, C. Icheln, and K. Haneda, “Self-user shadowing effects of millimeter-wave mobile phone antennas in a browsing mode,” in 13th European Conference on Antennas and Propagation, EuCAP 2019, 2019.

I. Syrytsin, S. Zhang, G. F. Pedersen, K. Zhao, T. Bolin, and Z. Ying, “Statistical Investigation of the User Effects on Mobile Terminal Antennas for 5G Applications,” IEEE Trans. Antennas Propag., vol. 65, no. 12, 2017. https://doi.org/10.1109/TAP.2017.2681701

K. Zhao et al., “Channel Characteristics and User Body Effects in an Outdoor Urban Scenario at 15 and 28 GHz,” IEEE Trans. Antennas Propag., vol. 65, no. 12, 2017. https://doi.org/10.1109/TAP.2017.2740959

S. L. Cotton, A. McKernan, A. J. Ali, and W. G. Scanlon, “An experimental study on the impact of human body shadowing in off-body communications channels at 2.45 GHz,” in Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011, 2011.

T. V. Nguyen, E. Masry, and L. B. Milstein, “Channel model and performance analysis of QAM multiple antenna systems at 60-GHz in the presence of human activity,” in GLOBECOM - IEEE Global Telecommunications Conference, 2011. https://doi.org/10.1109/GLOCOM.2011.6134425

A. A. Khuwaja, Y. Chen, N. Zhao, M. S. Alouini, and P. Dobbins, “A survey of channel modeling for uav communications,” IEEE Commun. Surv. Tutorials, 2018. https://doi.org/10.1109/COMST.2018.2856587

HUAWEI, “HUAWEI Dongles E3372h.” [Online]. Available: http://consumer.huawei.com/en/mobile-broadband/dongles/techspecs/e3372.htm. [Accessed: 28-Sep-2016].