• Daniel Fonseca
  • Feliphe Pereira
  • Ulysses R. C. Vitor



Microstrip Antennas, Wireless Communication, CST and Koch Fractals


This work proposes the study of patch antennas with fractal slots. Initially, a 2.4 GHz microstrip antenna is designed. Then, the slots in the Koch fractals format are inserted with the iteration 0, 1 and 2. Similarly, it is expected that the antenna can be subjected to various functions in other applications. Simulations using CST STUDIO SUITE Student Editon software are shown, in addition to antenna measurements using the Network Analyzer


[1] M. N. O. Sadiku, Elementos de eletromagnetismo. 3th ed. Porto Alegre, Bookman, 2004.
[2] D. K. Cheng, Fundamental of Engineering Electromagnetics. Reading MA, Addison-Wesley: London, 1992 I.S.
[3] C. A. Balanis, Antenna Theory, Analysis and Design. Second edition, John Wiley and Sons, New York, 1997.
[4] J. Anguera, C. Puente, and C. Borja, “A Procedure to Design Wide-Band Electromagnetically-Coupled Stacked
Microstrip Antennas Based on a Simple Network Model,” IEEE Antennas and Propagation Society International
Symposium, vol. II, pp. 944-947, Orlando, USA July 1999.
[5] J. Anguera, C. Puente, and C. Borja, “Dual Frequency Broadband Microstrip Antenna with a Reactive Loading and
Stacked Elements,” Progress in Electromagnetics Research Letters, vol. 10, pp. 1-10, 2009.
[6] M. K. Idris, B. Sarwar, Y. Rehman and T. Imeci, “Rectangular shaped microstrip patch antenna with multiple slits and
slots,” 25th Signal Processing and Communications Applications Conference (SIU), Antalya, pp. 1-4, 2017.
[7] F. Z. Hanin and L. Setti, “Slotted patch antenna loaded with ferrite,” 5th International Conference on Multimedia
Computing and Systems (ICMCS), Marrakech, pp. 487-491, 2016.
[8] H. Saini, A. Kaur, A. Thakur, R. Kumar, and N. Kumar, “A parametric analysis of ground slotted patch antenna for Xband applications,” 3rd International Conference on Signal Processing and Integrated Networks (SPIN), Noida, pp. 549-
552, 2016.
[9] A. Zamani, B. Mudun, E. Kara, G. Dilaver and T. İmeci, “Patch antenna with slits at 8 GHz,” IEEE/ACES International
Conference on Wireless Information Technology and Systems (ICWITS) and Applied Computational Electromagnetics
(ACES), Honolulu, HI, pp. 1-2, 2016.
[10] K. Chung, H. Park, J. Choi, “Wideband microstrip-fed monopole antenna with a narrow slit,” Microwave and Optical
Technology Letters, vol. 47, no. 4, pp. 400–402, YEAR.
[11] M. K. Aghwariya, P. Ranjan, P. S. Pandey, G. Rani and R. Sharma, “Miniaturization of L-Band Rectangular Patch
Antenna by Using Two Rectangular Slit,” 8th International Conference on Computational Intelligence and
Communication Networks (CICN), Tehri, pp. 222-225, 2016.
[12] A. A. Deshmukh, A. G. Ambekar, A. P. C. Venkata, A. Doshi, and K. P. Ray, “Modified U-slot cut rectangular patch
antenna for wideband response,” IEEE Applied Electromagnetics Conference (AEMC), Aurangabad, pp. 1-2, 2017.
[13] S. Mathew, M. Ameen, M. P. Jayakrishnan, P. Mohanan, and K. Vasudevan, “Compact dual polarized V slit, stub and
slot embedded circular patch antenna for UMTS/WiMAX/WLAN applications,” Electronics Letters, vol. 52, no. 17, pp.
1425-1426, 2016. doi: 10.1049/el.2016.1996.
[14] J. Eichler, P. Hazdra, M. Capek, T. Korinek, and P. Hamouz, “Design of a Dual-Band Orthogonally Polarized L-ProbeFed Fractal Patch Antenna Using Modal Methods,” IEEE Antennas and Wireless Propagation Letters, vol. 10, pp. 1389-
1392, 2011.
[15] S. Kumar, and D. K. Vishwakarma, “Compact circularly polarized slits- loaded microstrip patch antenna with symmetricfractal boundary,” IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC),
Cairns, QLD, pp. 34-37, 2016.
[16] M. A. Oliveira, E. E. C. Oliveira, A. G. Neto, J. J. P. Gonçalves, J. N. Cruz, "Análise paramétrica em uma antena patch
retangular de microfita com fendas,” Revista INNOVER, v. 1, no. 4, pp. 48-61, 2014.
[17] S. R. Spandana and K. P. Jasmine, “Design and performance analysis of Sierpinski diamond fractal antenna for multiband applications,” Conference on Signal Processing And Communication Engineering Systems (SPACES), Vijayawada,
pp. 85-89, 2018.
[18] P. Z. Petkov, M. R. Kolev, and B. G. Bonev, “Fractal Yagi antenna,” Conference on Microwave Techniques (COMITE),
Pardubice, pp. 1-3, 2015.
[19] Z. Yu, J. Yu, C. Zhu, and Z. Yang, “An improved Koch snowflake fractal broadband antenna for wireless applications,”
IEEE 5th International Symposium on Electromagnetic Compatibility (EMC-Beijing), Beijing, pp. 1-5, 2017.
[20] K. J. Falconer, Fractal Geometry (Mathematical Foundations and Applications). 2nd edition, John Wiley & Sons Ltd.,
[21] N. A. Rahman, and M. F. Jamlos, “A Wideband Log Periodic Antenna with Fractal Koch Geometry and Rectangular
Stub,” International Conference on Computer and Communication Engineering (ICCCE), Kuala Lumpur, pp. 5-8, 2016.
[22] N. A. Rahman, and M. F. Jamlos, “Miniaturized Log Periodic Fractal Koch Antenna with C-Shaped Stub,” International
Conference on Computer and Communication Engineering (ICCCE), Kuala Lumpur, pp. 53-56, 2016.
[23] V. Hebelka, J. Velim, and Z. Raida, “Dual band Koch antenna for RF energy harvesting,” 10th European Conference on
Antennas and Propagation (EuCAP), Davos, pp. 1-3, 2016.
[24] J. Anguera, J. P. Daniel, C. Borja, J. Mumbrú, C. Puente, T. Leduc, N. Laeveren, and P. Van Roy, “Metallized Foams for
Fractal-Shaped Microstrip Antennas,” IEEE Antennas and Propagation Magazine, vol.50, no. 6, pp.20-38, 2008.
[25] J. Anguera, C. Puente, C. Borja, and J. Soler, “Fractal-Shaped Antennas: a Review,” Wiley Encyclopedia of RF and
Microwave Engineering, edited by K. Chang, vol.2, pp.1620-1635, 2005.




How to Cite

Daniel Fonseca, Feliphe Pereira, & Ulysses R. C. Vitor. (2020). STUDY OF PATCH ANTENNAS WITH KOCH CURVE FORM SLOTS. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 18(3), 399–407.



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