VARIOGRAM ANALYSIS OF A DUAL BAND PATCH ANTENNA

Yıl 2019, Cilt: 8 Sayı: 2, 755 - 761, 31.07.2019

Hulusi Açıkgöz

https://doi.org/10.28948/ngumuh.598229

Öz

   In the present study, the variogram analysis
of a patch antenna is performed in order to study its performance by examining
the return loss that is closely depending on the design parameters. The studied
patch antenna is a dual band textile antenna intended for body centric
applications. The working frequencies are 900 MHz and 1800 GHz.   For the sake of simplicity, only two design
parameters are considered. Their effect on the return loss are examined by plotting
the variogram and the results are compared with others given by alternative
statistical methods such as Monte Carlo and Polynomial Chaos Expansion methods.
It is shown that the variogram analysis may be a good technique for parametrical
analysis of electromagnetic structures such as antennas.

Anahtar Kelimeler

Dual band textile antenna, variogram analysis

ÇİFT BANTLI BİR YAMA ANTENİN VARİOGAM ANALİZİ

Öz

   Bu çalışmada, bir yama antenin variogram analizi, tasarım
parametrelerine bağlı olan geri dönüş kaybının hesaplanarak anten performansını
incelemek için gerçekleştirilmiştir. Söz konusu yama anten, vücut merkezli
uygulamalar için tasarlanmış çift bantlı tekstil antendir. Çalışma frekansı 900
MHz ve 1800 GHz'dir. Basitlik açısından, sadece iki tasarım parametresi
düşünülmüştür. Dönüş kaybı üzerindeki etkileri variogram tekniği ile incelenmiş
ve Monte Carlo ve Çok terimi Kaos Açılımı gibi alternatif istatistiksel yöntemlerin
verdiği sonuçlar ile karşılaştırılmıştır. Çalışmada, antenler gibi
elektromanyetik yapıların parametrik analizinde variogram yaklaşımının
kullanılabileceği gösterilmiştir.

Anahtar Kelimeler

Çift bantlı tekstil anten, variogram analizi

Kaynakça

• [1] AL-SEHEMI, A., AL-GHAMDI, A., DISHOVSKY, N., ATANASOV, N., ATANASOVA, G., “On-Body Investigation of a Compact Planar Antenna on Multilayer Polymer Composite for Body-Centric Wireless Communications”, International Journal of Electronics and Communications, 82, 20-29, 2017.
• [2] WHITMORE A., AGARWAL A., DA XU L., “The Internet of Things—A survey of topics and trends”, Information Systems Frontiers,17(2), 261–274, 2014.
• [3] HALL P. S. AND HAO Y., “Antennas and propagation for body centric communications,” Proceedings of First European Conference on Antennas and Propagation (EuCAP), Nice, France, November 2006.
• [4] SALONEN P., RAHMAT-SAMII Y., SCHAFFRATH M., KIVIKOSKI M., “Effect of textile materials on wearable antenna performance: a case study of GPS antennas”, IEEE Antennas and Propagation Society Symposium, Monterey, USA, June 2004.
• [5] MURTHY K., Monte Carlo Methods in Statistical Physics, pp.144, Universities Press, Hyderabad, India, 2004.
• [6] LIU J. S., Monte Carlo Strategies in Scientific Computing. Springer-Verlag, New York, USA, 2001, ISBN: 0-387-95 230-6.
• [7] MURTHY, K., Monte Carlo Methods in Statistical Physics, Universities Press, p. 144, Hyderabad, India, India.
• [8] GLASSERMAN, P., Monte Carlo Methods in Financial Engineering, Springer-Verlag, New York, USA, 2004.
• [9] LJUNGBERG, M., STRAND, S-E., KING, M.A., Monte Carlo Calculations in Nuclear Medicine, In Applications in Diagnostic Imaging (2nd Edition), CRC Press, USA, 2012.
• [10] SUDRET, B., “Global sensitivity analysis using polynomial chaos expansions”, Reliability Engineering & System Safety, 93(7), 964–979, 2008.
• [11] ACIKGOZ, H., MITTRA, R., “Statistical Investigation of a Dual Band Wearable Patch Antenna”, IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, USA, 2017.
• [12] ACIKGOZ, H., MITTRA, R., “Stochastic Polynomial Chaos Expansion Analysis of a Split Ring Resonator at Terahertz Frequencies”, IEEE Transactions on Antennas and Propagation, 66 (4), 2131-2134 2018.
• [13] LOSS, C., GONÇALVES, R., LOPES, C., PINHO, P., SALVADO, R., “Smart Coat with a Fully-Embedded Textile Antenna for IoT Applications”, Sensors, 16 (6), 2016.
• [14] ACIKGOZ, H., ARYA, R.K., WIART, J., MITTRA, R.., Statistical electromagnetics for antennas. In R. MITTRA (Ed.), Developments in Antenna Analysis and Design (Volume 2, Chap. 8, pp. 259-286), Scitech Publishing, London, UK, 2019.
• [15] MATHERON, G., “Principles of Geostatistics”, Economic Geology, 58(8), 1246-1266, 1963.
• [16] LEMAIRE, T., WIART, J., DE DONCKER, P., “Variographic Analysis of Public Exposure to Electromagnetic Radiation Due to Cellular Base Stations”, Bioelectromagnetics, 37 (8), 557-562, 2016.