Design of a 1 × 2 Array Microstrip Antenna for Active Beam Compensation at X-band

Title & Authors
Design of a 1 × 2 Array Microstrip Antenna for Active Beam Compensation at X-band
Choi, Yoon-Seon; Woo, Jong-Myung;

Abstract
This paper presents an X-band (9.375 GHz) $\small{1{\times}2}$ array microstrip antenna which is capable of active beam compensation for installation of an unmanned aerial vehicle (UAV). First of all, a basic $\small{1{\times}2}$ array microstrip antenna incorporated with wilkinson power divider was designed and performance of the array antenna was verified. Next, to verify beam steering performance of the designed array microstrip antenna, we fabricated a phase shifter, and the wilkinson power divider as module structure and measured characteristics of beam steering according to phase shifting. The main lobe is 0.6 dBi at $\small{0^{\circ}}$, and the side lobe decreased 18.8 dB. The reliable radiation pattern was achieved. Finally, an active beam steering microstrip array antenna attached with the phase shifter and the power divider on the back side of the antenna was designed and fabricated to install wing of UAV for compactness. The maximum gain is 0.1 dBi. Therefore, we obtained a basic antenna technology for compensating beam error according to wing deformation of an UAV installed array antennas.
Keywords
Array antenna;active beam compensation;
Language
Korean
Cited by
References
1.
Lockyer A. J., Alt K. H., Coughlin D. P., Durham M. D. and Kudva J. N.(1999), "Design and Development of a Conformal Load-bearing Smart-skin Antenna : Overview of the AFRL Smart Skin Structures Technology Demonstration(S3TD)," SPIE Smart Structures and Materials, Vol. 3674, pp.410-424.

2.
Lockyer A. J., Kudva J. N. and Alt, K. H.(1995), "Development of a Conformal Load- Carrying Smart-Skin Antenna for Military Aircraft," SPIE Smart Structures and Materials, Vol. 2448, pp.53-62.

3.
Yeo S. C., Kim M. S., Park C. Y. and Tae H. S.(2011), "A Novel Aircraft Antenna Structure Using Composite Materials," 18th International Conference on Composite Materials, Korea, August.

4.
Schippers H.(2010), "Real-Time Adaptive Beam-Forming for Vibrating Airborne Antenna Arrays," pp.1032-1035, Barcelona, Spain, April.

5.
Park S. H., Kim I. G., Lee H. S. and Kim M. S.(2015), "Prediction for Large Deformation of Cantilever Beam Using Strains," Korean Society for Aeronautical and Space Sciences, Vol. 43, No. 5, pp.156-165.

6.
Gilles Y. D. and Khelifa H.(2008) "Smar Antenna Technology For Future Wireless Communication Systems," University of Ottawa.