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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2017-11-15
A Horizon Ring Nulling Shorted Annular Patch Antenna with Shunted Stubs
By
Ian T. McMichael,

    Dr. Ian T. McMichael

    MITRE Corporation

    USA

    Homepage

Erik T. Lundberg,

    Dr. Erik T. Lundberg

    MITRE Corporation

    USA

    Homepage

Drayton L. Hanna,

    Dr. Drayton L. Hanna

    Mitre Corp

    USA

    Homepage

Frank S. Kolak

    Dr. Frank S. Kolak

    MITRE Corporation

    USA

    Homepage

Progress In Electromagnetics Research M, Vol. 62, 131-141, 2017
doi:10.2528/PIERM17082504 | Google Scholar

Abstract
A dual-band shorted annular ring patch antenna with interference rejection at the horizon is presented for GPS timing applications. It is shown that the dimensions of the annular ring can be optimized to make a null in the RHCP pattern at low elevation near the horizon for all azimuth angles. This null attenuates interfering signals originating from ground based sources. The antenna achieves circular polarization utilizing radial shunted stubs. The effect of the stubs on the resonance is analytically derived and verified through simulations. A novel feed configuration that incorporates a coplanar waveguide transition improves the impedance match for both L1 and L2 GPS frequency bands compared to previous designs that present compromises between the feed impedance of the two bands. Additionally, since the shunted stubs reduce the number of required electronic components compared to other antennas with similar horizon nulling capability, the cost is reduced. A prototype antenna operating at GPS L1 and L2 bands has been fabricated and validated through measurements.
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Citation
Ian T. McMichael, Erik T. Lundberg, Drayton L. Hanna, and Frank S. Kolak, "A Horizon Ring Nulling Shorted Annular Patch Antenna with Shunted Stubs," Progress In Electromagnetics Research M, Vol. 62, 131-141, 2017.
doi:10.2528/PIERM17082504
References

1. Kaplan, E., Understanding GPS Principles and Applications, Artech House, 1996.

2. Geier, G., T. King, H. Kennedy, R. Thomas, and B. McNamara, "Prediction of the time accuracy and integrity of GPS timing," Proc. IEEE International Frequency Control Symposium, 226-274, San Francisco, USA, 1995.        Google Scholar

3. Rao, B. R., W. Kunysz, R. Fante, and K. McDonald, GPS/GNSS Antenna, Artech House, 2012.

4. Rao, B. R. and E. Rosario, "Spatial null steering microstrip antenna array,", U.S. Patent 6,597,316, Jul. 22, 2003.        Google Scholar

5. Jackson, D., A. Bhattaacharyya, R. Smith, S. Buchheit, and S. Long, "Microstrip patch designs that do not excite surface waves," IEEE Trans. Antennas Propagat., Vol. 41, 1026-1037, Aug. 1993.
doi:10.1109/8.244643        Google Scholar

6. Boccia, L., G. Amendola, and G. Di Massa, "A dual frequency microstrip patch antenna for high-precision GPS applications," IEEE Ant. Wireless Propagat. Letters, Vol. 3, 157-160, 2004.
doi:10.1109/LAWP.2004.832127        Google Scholar

7. Massa, G. and G. Mazzarella, "Shorted annular patch antenna," Microwave and Optical Technology Letters, Vol. 8, No. 4, 222-226, Mar. 1995.
doi:10.1002/mop.4650080416        Google Scholar

8. Haneishi, M., T. Nambara, and S. Yoshida, "Study on ellipticity properties of single-feed-type circularly polarised microstrip antennas," Electronics Letters, Vol. 18, No. 5, Mar. 1982.
doi:10.1049/el:19820132        Google Scholar

9. Young, M., The Techincal Writers Handbook, University Science, 1989.

10. Gonzalez-Posadas, V., D. Segovia-Vargas, E. Rajo-Iglesias, J. Luis Vazquez-Roy, and C. Martin-Pascual, "Approximate analysis of short circuited ring patch antenna working at TM01 mode," IEEE Trans. Antennas Propagat., Vol. 54, No. 6, Jun. 2006.
doi:10.1109/TAP.2006.875925        Google Scholar

11. Lin, Y. and L. Shafai, "Characteristics of concentrically shorted circular patch microstrip antennas," IEE Proceedings, Vol. 137, No. 1, Pt. H, 18-24, Feb. 1990.        Google Scholar

12. McMichael, I., E. Lundberg, D. Hanna, and F. Kolak, "Horizon ring nulling shorted annular patch GNSS antenna with shunted stubs," 2016 IEEE International Symposium on Antennas and Propagation (APSURSI), 1101-1102, Fajardo, Puerto Rico, 2016.        Google Scholar

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