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2015-09-08

Design of Wideband Monopole Antenna Loaded with Small Spiral for Using in Wireless Capsule Endoscopy Systems

By Elham Atashpanjeh and Abbas Pirhadi
Progress In Electromagnetics Research C, Vol. 59, 71-78, 2015
doi:10.2528/PIERC15062801

Abstract

In this paper, a new antenna is designed in order to use in the wireless capsule endoscopy (WCE) system. This antenna consists of two parts; the small monopole part and the small spiral. Having the omnidirectional radiation pattern for covering the stochastic motions of the capsule into gastrointestinal and also, appropriate gain and wide bandwidth to achieve high resolution images must be considered in designing procedure. In this design, a good radiation pattern is obtained from small monopole, and using the spiral structure leads to an appropriate wide bandwidth and a miniaturized antenna. By simulating this antenna in the human body environment and considering four different body tissues and their results, the antenna has the bandwidth of 360 MHz (39.3% relative bandwidth) at 928 MHz center frequency which covers the ISM band (868.0-868.6 MHz and 902.8 to 928.0 MHz). The radiation pattern of the antenna is omnidirectional. The maximum gain of the designed antenna is -23 dB, over the frequency band that is suitable for using as a transmitter antenna in the WCEs.

Citation


Elham Atashpanjeh and Abbas Pirhadi, "Design of Wideband Monopole Antenna Loaded with Small Spiral for Using in Wireless Capsule Endoscopy Systems," Progress In Electromagnetics Research C, Vol. 59, 71-78, 2015.
doi:10.2528/PIERC15062801
http://www.jpier.org/PIERC/pier.php?paper=15062801

References


    1. Iddan, G., G. Meron, A. Glukhovsky, and P. Swain, "Wireless capsule endoscopy," Nature, Vol. 405, 417, 2000.
    doi:10.1038/35013140

    2. Tuyl, S. A. C., "Videocapsule endoscopy: Fiction becoming fact,", University Medical Center Rotterdam, Erasmus MC, 2007.

    3. Filip, D., "Self-stabilizing capsule endoscope for early detection and biopsy of colonic polyps,", University of Calgary, 2013.

    4. Lim, E. G., J. C. Wang, Z. Wang, G. Juans, T. Tillo, K. L. Man, and M. Zhang, "Wireless capsule antennas," Proceedings of the International MultiConference of Engineers and Computer Scientists, 726-729, 2013.

    5. Ara, P., M. Heimlich, and E. Dutkiewicz, "Antenna performance for localization of capsule endoscope," Medical Information and Communication Technology (ISMICT), 1-5, 2014.

    6. Lee, S. H., K. Chang, K. J. Kim, and Y. J. Yoon, "A conical spiral antenna for wideband capsule endoscope system," IEEE Antennas and Propagation Society International Symposium (AP-S), 1-4, 2008.

    7. Cheng, X., D. E. Senior, C. Kim, and Y. K. Yoon, "A compact omnidirectional self-packaged patch antenna with complementary split-ring resonator loading for wireless endoscope applications," IEEE Antennas Wirel. Propag. Lett., Vol. 10, 1532-1535, 2011.
    doi:10.1109/LAWP.2011.2181315

    8. Lee, S. H. and Y. J. Yoon, "A dual spiral antenna for ultra-wideband capsule endoscope system," Antenna Technology: Small Antennas and Novel Metamaterials, 227-230, 2008.
    doi:10.1109/IWAT.2008.4511324

    9. Yun, S., K. Kim, and S. Nam, "Outer-wall loop antenna for ultrawideband capsule endoscope system," IEEE Antennas Wirel. Propag. Lett., Vol. 9, 1135-1138, 2010.
    doi:10.1109/LAWP.2010.2094996

    10. Morimoto, Y., D. Anzai, and J. Wang, "Design of ultra-wideband low-band implant antennas for capsule endoscope application," 7th International Symposium on Medical Information and Communication Technology (ISMICT), 61-65, 2013.

    11. Zhao, D., X. Hou, X. Wang, and C. Peng, "Miniaturization design of the antenna for wireless capsule endoscope," 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE), 1-4, 2010.

    12. Kwak, S. I., K. Chang, and Y. J. Yoon, "Ultra-wide band spiral shaped small antenna for the biomedical telemetry," Microwave Conference Proceedings, APMC, Asia-Pacific Conference Proceedings, Vol. 1, 4, 2005.

    13. Johansson, A., "Wireless communication with medical implants: Antennas and propagation,", Lund University, 2004.

    14. Gabriel, C., S. Gabriel, and E. Corthout, "The dielectric properties of biological tissues: I. Literature survey," Phys. Med. Biol., Vol. 41, No. 11, 2231, 1996.
    doi:10.1088/0031-9155/41/11/001

    15. Seo, W., U. Kim, S. Lee, K. Kwon, and J. Choi, "A meandered inverted-F capsule antenna for an ingestible medical communication system," Microw. Opt. Technol. Lett., Vol. 54, No. 7, 1761-1765, 2012.
    doi:10.1002/mop.26869

    16. Kim, J. and Y. Rahmat-Samii, "Implanted antennas inside a human body: Simulations, designs, and characterizations," IEEE Trans. on Microw. Theory Tech., Vol. 52, No. 8, 1934-1943, 2004.
    doi:10.1109/TMTT.2004.832018

    17. Sani, A., "Modelling and characterisation of antennas and propagation for body-centric wireless communication,", Faculty of the University of London in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Electronic Engineering, Queen Mary, University of London, London, 2010.

    18. Lee, S. H., J. Lee, Y. J. Yoon, S. Park, C. Cheon, K. Kim, and S. Nam, "A wideband spiral antenna for ingestible capsule endoscope systems: Experimental results in a human phantom and a pig," IEEE Trans. on Biomed. Eng., Vol. 58, No. 6, 1734-1741, 2011.
    doi:10.1109/TBME.2011.2112659