Abstract

Fast beaming tracking and security are important factors for the development of communication technology. A Retrodirective antenna (RDA) technique has been attenuated to one way of improving security. It has the interesting property of automatically responding to an incoming signal location without any prior knowledge of the direction of that source. The purpose of this paper is to design a Rat race coupler which acts as a Retrodirective mode in ANSYS. The resonant frequency of the coupler is 2.4 GHz. The Proposed Rat race couplers have been devised using the Glass Epoxy substrate (FR4) with dielectric constant (?r = 4.4). S parameters, radiation pattern, insertion and isolation losses are obtained from ANSYS software

Keywords

Retrodirective array, Rat-race couplers, Return loss, ANSYS,

Downloads

Download data is not yet available.

References

  1. L.C. Van Atta, “Electromagnetic reflector,” U.S. Patent 2 908 002, Oct 6,1959.
  2. E. Nielsen, Square Van Atta Reflector with Conducting Mounting Flame, IEEE Transactions on Antennas and Propagation, 18 (1970) 48-54.
  3. C. Pon, Retrodirective Array Using the Heterodyne Technique, IEEE Transactions on Antennas and Propagation, 12 (1964) 176-180.
  4. David M. Pozer, (2005) Microwave engineering, John Willey and Sons.
  5. Y.-J. Ren, K. Chang, New 5.8-Ghz Circularly Polarized Retrodirective Rectenna Arrays for Wireless Power Transmissions, IEEE Transactions on Microwave Theory and Techniques, 54 (2006) 2970-2976.
  6. L. Z. Zheng, J. D.Tseng, B. S. Wu, J. M. Li, (2015) Hybrid Type Rat-Race Coupler Designs, In 2015 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC), IEEE, 724-727.
  7. M. Alhassoun, F. Amato, G. Durgin, A Multi-Modulation Retrodirective Feed Network for Backscatter Communications, In 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), IEEE, 1-5.
  8. Y.C. Chiou, J.T. Kuo, C.H. Chan, New Miniaturize Dual Band Rat-Race Coupler with Microwave C-Sections, In 2009 IEEE MTT-S International Microwave Symposium Digest, IEEE, 701-704.
  9. S.-N. Hsieh, T.-H. Chu, Linear Retro-Directive Antenna Array Using 90◦Hybrids, IEEE transactions on antennas and propagation, 56 (2008) 1573-1580.
  10. C. Y. Pon, Hybrid –ring directional coupler for arbitrary power divisions, IRE Transactions on Microwave Theory and Techniques, 9(6) 529-535.