ISSN E 2409-2770
ISSN P 2521-2419

Design and Analysis of Dual Band Circular Slotted Patch Antenna at 2.45GHZ and 5.8GHZ for RFID Applications


Vol. 7, Issue 07, PP. 251-254, July 2020


Keywords: Radio Frequency Identification (RFID), Giga hertz (GHz), Wireless lan (WLAN), Computer Simulation Technology Microwave Studio (CST MWS), Decibel (dB)

Download PDF

In this project patch antenna has been used for Radio Frequency Identification (RFID) applications. Due to the advancement in the field of wireless communications day by day, RFID is the most attractive technology being used as an identification technology and is far better than other sources of identification and tracking i.e. Bar code technology. Different frequency bands are assigned for RFID antenna. But in this project work has been made in Microwave band ranging from (2.400- 2.483) GHz and (5.7250- 5.8750) GHz due to a number of applications and due to the higher transfer rate. In order to design slotted dual band patch for RFID 2.45GHz and 5.800 Ghz applications, a 1.58 mm thicker RT/duroid-5880 is selected for substrate material having a relative permittivity and loss tangent of Ɛr=2.2 and δ=0.0009 respectively. To achieve dual band response different techniques can be adopted. First a conventional patch for 2.45GHz has been designed and then with the help of slotting techniques another frequency band was achieved that was radiating at 5.8 GHz. The dual band frequency of the antenna has been achieved by introducing the slot in the upper most layer patch with coaxial feed. The gain, efficiency and bandwidth of the antenna at (2.45 and 5.80) GHz are {6.661 dB, 89 %, 36 MHz} and {6.661 dB, 97 % and 341MHz}, respectively. The antenna can be potentially use for RFID and WLAN applications. All the simulations are carried out using CST MWS. The prototype has been fabricated to validate the results.

  1. N.A Khattak,, Department of Electrical Engineering, University of Engineering and Technology Peshawar, Pakistan.
  2. M.I. Khattak, , University of Engineering and Technology Peshawar, (Kohat Campus), Pakistan.

N.A Khattak M.I. Khattak "Design and Analysis of Dual Band Circular Slotted Patch Antenna at 2.45GHZ and 5.8GHZ Vol. 7 Issue 07 PP. 251-254 July 2020

  1. S. Mangal, Y.J. Kang and H. J. Lee. "Survey on security in Internet of Things: State of the art and challenges." Advanced Communication Technology (ICACT), 2017 19th International Conference on. IEEE, 2017.

  2. M. Gaetano. "The art of UHF RFID antenna design: impedance matching and size-reduction techniques." IEEE Antennas and Propagation Magazine, pp. 66-79, 2008

  3. A. Ren; C. Wu; T. Wang; B. Yao, "A novel design for UHF near-field RFID reader antenna based on traveling wave," Communication Technology (ICCT), 2010 12th IEEE International Conference on , vol., no., pp.239,242, 11-14 Nov. 2010

  4. A.Iqbal, S.Shah, M. Amir, "Investigating Universal Filtered Multi-Carrier (UFMC) Performance analysis in 5G cognitive Radio Based Sensor Network (CSNs)" International Journal of Engineering Works,Vol. 4, Issue 1, PP. 5-9, Jan 2017. 

  5. Z. N. Chen Fellow IEEE;X. Qing; Member IEEE and H. L. Chung, “AUniversal UHF RFID Reader Antenna” IEEE Transactions on Microwave Theory and Techniques, vol.57, no.5, pp.1275, 1282, 27 March 2009

  6. C. A. Balanis Antenna Theory: analysis and design. Wiley-interscience, 2012.

  7. E. Michael. An investigation of reduced size planer fed microstrip patch antennas. Doctoral thesis Northumbria University, 2005.

  8. W.S. Chen, “Single-feed dual-frequency rectangular microstrip antenna with square slot,”

  9. Researcher own contribution – May 2019.