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K. T. Mathew, “Perturbation Theory,” Encyclopedia of RF and Microwave Engineering, Vol. 4, 2005, pp. 37253735. doi:10.1002/0471654507.eme309

has been cited by the following article:

• TITLE: Novel Method of Detecting Pregnancy Using Microwaves

  AUTHORS: Anil Lonappan

  KEYWORDS: Pregnancy; Blood; Prenatal Care; Family Planning

  JOURNAL NAME: Journal of Electromagnetic Analysis and Applications, Vol.4 No.8, August 6, 2012

  ABSTRACT: This paper reports a study of the dielectric properties of pregnant women’s blood samples as well non-pregnant women’s blood samples at microwave frequencies. The cavity perturbation technique in the frequency range between 2 and 3 GHz was used in this study. It is observed that the dielectric constant of pregnant women’s blood samples is higher than that of non-pregnant women’s blood samples, and the conductivity of pregnant women’s blood samples is higher than that of non-pregnant women’s blood samples. This is a novel in-vitro method of determining pregnancy. The same samples were also subjected to investigations in the clinical laboratory for quantitative pregnancy blood tests. Determination of pregnancy will help the woman to make preparations for proper prenatal care or family planning.