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Compact antenna array receiver for robust satellite navigation systems

Published online by Cambridge University Press:  14 July 2014

S. Irteza ,
E. Schäfer ,
R. Stephan ,
A. Hornbostel  and
M. A. Hein
S. Irteza*
Affiliation:
RF and Microwave Laboratory, Ilmenau University of Technology, Ilmenau, Germany
E. Schäfer
Affiliation:
Institute for Microelectronic and Mechatronic Systems, Ilmenau, Germany
R. Stephan
Affiliation:
RF and Microwave Laboratory, Ilmenau University of Technology, Ilmenau, Germany
A. Hornbostel
Affiliation:
German Aerospace Center (DLR), Oberpfaffenhofen, Germany
M. A. Hein
Affiliation:
RF and Microwave Laboratory, Ilmenau University of Technology, Ilmenau, Germany
*
Corresponding author: S. Irteza Email: safwat-irteza.butt@tu-ilmenau.de
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Abstract

A compact navigation receiver comprising a decoupled and matched four-element L1-band antenna array with an inter-element separation of a quarter of the free-space wavelength is presented in this paper. We investigate the impact of the decoupling and matching network on the robustness of the navigation receiver. It is observed that in order to achieve high robustness with a compact antenna array, it is necessary to employ a decoupling and matching network, particularly in case of three spatially separated interferers. Furthermore, we study the influence of the polarization impurity of the compact planar antenna array on the equivalent carrier-to-interference-plus-noise ratio (CINR) of the receiver when impinged with different numbers of diametrically polarized interference signals. It is shown that the higher-order modes possess strong polarization impurity, which may halve the available degrees-of-freedom for nulling in the presence of linear-polarized interferers, using a conventional null-steering algorithm. We verify the robustness of the designed compact receiver by means of a complete global-navigation-satellite-system demonstrator. It is shown that the maximum jammer power that is allowed us to maintain the CINR above 38 dBHz with three interferers can be improved by more than 10 dB if a decoupling and matching network is employed.

Keywords

Active array antennas and componentsSmart antennasDigital beamformingDecoupling and matching network
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Issue 6 , December 2015 , pp. 735 - 745
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

REFERENCES

[1]Heckler, M.V.T.; Cuntz, M.; Konovaltsev, A.; Greda, L.A.; Meurer, M.: Development of robust safety-of-life navigation receivers at the German Aerospace Center (DLR), IEEE MTT-S Int. Microwave Symp. Digest, May (2010), pp. 85–88.Google Scholar
[2]Ly, H. et al. : Design, simulation, and testing of a miniaturized GPS dual-frequency (L1/L2) antenna array, in ION GPS 2002, Portland, OR, September 2002.CrossRefGoogle Scholar
[3]Brown, A.; Tseng, H.-W.: Miniaturized GPS antenna array and test results, in GNSS 2000, Edinburgh, Scotland, May 2000.Google Scholar
[4]De Lorenzo, D.S.; Rife, J.; Enge, P.; Akos, D.M.: Navigation accuracy and interference rejection for an adaptive GPS antenna array, in Proc. ION GNSS 2006, 2006, 763–773.Google Scholar
[5]Irteza, S.; Murtaza, N.; Caizzone, S.; Stephan, R.; Hein, M.A.: Compact planar L-band antenna arrays with optimal diversity performance, in IEEE Topical Conf. Antennas and Propagation in Wireless Communications, Torino, Italy, September 2011.Google Scholar
[6]Dissertation: Volmer, C.: Compact antenna arrays in mobile communications: a quantitative analysis of radiator coupling, ISBN: 978-3-939473-71-8, Ilmenau: Universitätsverlag Ilmenau, 2010.Google Scholar
[7]Basta, N. et al. : System concept of a compact multi-antenna GNSS receiver, in 7th German Microwave Conf., Ilmenau, Germany, March 2012.Google Scholar
[8]Balanis, C.A.: Antenna theory: Analysis and Design, 2nd ed., John Wiley & Sons, New York, 1997.Google Scholar
[9]Volmer, C.; Weber, J.; Stephan, R.; Blau, K.; Hein, M.A.: An eigen-analysis of compact antenna arrays and its application to port decoupling. IEEE Trans. Antenna Propag, 56 (2), (2008), 360–370.Google Scholar
[10]Chaloupka, H.J., Wang, X.; Coetzee, J.C.: Performance enhancement of smart antennas with reduced element spacing, in Proc. IEEE Wireless Communication and Networking Conf. (WCNC 2004), New Orleans, LA, March 2003, vol. 1, 425–430.Google Scholar
[11]Galileo OS SIS ICD. [Online]. Available: ec.europa.eu/-enterprise/policies/satnav/galileo/files/galileo-os-sis-icd-issue1-revision1_en.pdf.Google Scholar
[12]Engberg, J.; Larsen, T.: Noise Theory of Linear and Nonlinear Circuits, John Wiley & Sons, Chichester, 1995.Google Scholar
[13]Irteza, S. et al. : Noise characterization of a multi-channel receiver using a small antenna array with full diversity for robust satellite navigation, in IEEE Int. Conf. Wireless Information Technology and Systems, Maui (HI), USA, November 2012.Google Scholar
[14]Irteza, S. et al. : Four-element compact planar antenna array for robust satellite navigation systems, in IEEE 7th European Conf. Antennas and Propagation (EuCAP 2013), Gothenburg, Sweden, April 2013.Google Scholar
[15]Irteza, S. et al. : Impact of polarization impurity on compact antenna array receiver for satellite navigation systems, in IEEE European Microwave Conf., Nuremberg, Germany, October 2013.Google Scholar
[16]Van Trees, H.L.: Optimum Array Processing – Part IV of Detection, Estimation and Modulation Theory, John Wiley & Sons, New York, 2002.Google Scholar
[17]CST Microwave Studio 2011, www.cst.comGoogle Scholar
[18]Galileo test range Berchtesgaden, www.gate-testbed.com.Google Scholar
[19]Pullen, S.; Gao, G.: GNSS jamming in the name of privacy, Inside GNSS, March/April 2012, 34–43, Heidi.Google Scholar