{"references": ["Balanis C.A. Antenna theory Analysis and design, Fourth Edition, John Wiley & sons, Inc., 2016.", "Kraus J. D., Marhefka R. J., Khan A.S. Antennas and Wave Propagation, Fourth Edition, Tata McGraw Hill Education Private Limited, 2010.", "Constantinescu C., Munteanu C., Pacurar C., Racasan A., Gliga M., Andreica S. High Frequency Analysis of Bowtie Antennas, 2019 11th International Symposium on Advanced Topics in Electrical Engineering, ATEE 2019, Bucharest, Romania, 2019.", "Bottiglieri A., Ruvio G., O'Halloran M., Farina L. Exploiting Tissue Dielectric Properties to Shape Microwave Thermal Ablation Zones, Sensors 2020, Volume 20.", "Foroutan F., Nikolova N. Active Sensor for Microwave Tissue Imaging with Bias-Switched Arrays, Sensors, 2018, Volume 18.", "Constantinescu C., Pacurar C., Giurgiuman A., Munteanu C., Andreica S., Gliga M. Numerical Modelling and Analysis of Circular Patch Antenna Array for Further Use Determination, 9th International Conference on Modern Power Systems (MPS), 16-17 June 2021, 2021.", "Pacurar C., Giurgiuman A., Constantinescu C., Topa V., Munteanu C., Andreica S., Gliga M. High Frequency Analysis of The Influence of Yagi-Uda Antenna on The Human Head, 11th International Conference and Exposition on Electrical and Power Engineering - EPE 2020, Ia\u0219i, Romania, 22-23 October, 2020.", "Constantinescu C., Munteanu C., Grindei L., Giurgiuman A., Pacurar C., Gliga M., Andreica S. High Frequency Analysis of the Vivaldi Antenna Parameters, 11th International Conference and Exposition on Electrical and Power Engineering - EPE 2020, Ia\u0219i, Romania, 22-23 October, 2020.", "Constantinescu C., Pacurar C., Giurgiuman A., Munteanu C., Andreica S., Gliga R. The Influence of Electromagnetic Waves Emitted by PIFA Antennas on the Human Head, Springer Nature IFMBE, volume 88, 2022.", "Constantinescu C., Munteanu C., Pacurar C., Racasan A., Influence of the Patch Antenna Feeding on their Parameters, 10th International Conference and Exposition on Electrical and Power Engineering,18-19 October, Ia\u0219i, Romania, pp. 235-240, 2018.", "Ali S.M., Jeoti V., Saeidi T., Wen W. P., Design of compact microstrip patch antenna for WBAN applications at ISM 2.4 GHz, Indonesian Journal of Electrical Engineering and Computer Science 2019, Vol. 15, 7 pages.", "Khraisat Y. S. H., Al-Zoubi A.S., Al-Ahmadi A., Mbaideen O. A. Design Implantable Antennas with Human Body Effect, International Journal of Innovative Technology and Exploring Engineering (IJITEE) 2020, Volume 9.", "Ali U., Ullah S., Khan J., Shafi M., Kamal V., Basir A., Flint J. A., Seager R. D. Design and SAR Analysis of Wearable Antenna on Various Parts, Journal Electr. Eng. Technol. 2017, Volume 12, 12 pages.", "De, A.; Chosh, C. K., Bhattacherjee, A. K. Design and Performance Analysis of Microstrip Patch Array Antennas with different configurations, International Journal of Future Generation Communication and Networking 2016, Volume 9,13 pages.", "Islam M.T., Samsuzzaman M., Rahman M.N., A compact slotted patch antenna for breast tumor detection, Microwave and Optical Technology. Letters 2018, Volume: 60, 8 pages.", "Yun X.Z. A Microstrip Antenna for Medical Application. Tissue Detection, Bachelor Thesis, G\u00e4vle, May 2017.", "Maneesha N., Nishu R., Anand M., Biomedical Application of Microstrip Patch Antenna, International Journal of Innovative Science and Modern Engineering (IJISME) 2014, Volume 2, 2 pages.", "Magill M.K., Conway G.A., Scanlon W.G. Effect of tumor tissue on implant antenna performance at 2.38 GHz, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 9-14 July 2017, San Diego, California, USA., 2017.", "Kumar R., Solanki L.S., Singh S., SAR Analysis of Antenna Implanted Inside Homogeneous Human Tissue Phantom, 2019 6th International Conference on Signal Processing and Integrated Networks (SPIN), 7-8 March 2019, Noida, India"]}

In a lot of studies from literature was analyzed the influence of antennas on human body. In this article the study reflects the opposite, the influence of human tissue on antennas’ parameters. In this study different types of human tissues are modelled in the vicinity of the patch antenna to analyze their influence on antennas’ parameters. To model the patch antenna, the authors developed and implemented an algorithm dedicated to the determination of the antenna’s geometrical dimensions in terms of dielectrics’ material properties and their standard dimensions, all gathered by the authors in a very useful database. Using our algorithm, we can quickly find the antennas geometrical parameters needed for its numerical modelling and practically construction. The antenna geometry is obtained with our algorithm and next is modelled in the presence of three types of tissue: skin, muscle, and fat. The directivity, S-parameters and specific absorption rate in the tissues are determined, considering different distances between them. Analyzing our results, we can conclude that the normal functioning of the antenna is influenced by the presence of human tissues in their immediate vicinity.