Performance Improvement of a Direction Finding System Antenna Using Method of Moment (MOM)


  •   Ogonna F. Anaebo

  •   Gloria N. Ezeh

  •   Onyebuchi Chikezie Nosiri

  •   Cosmas K. Agubor


This paper focuses on the Performance Improvement of a Direction Finding System Antenna Using Method of Moment (MoM) Approach. The work is developed to provide an approximate current distribution for a direction finding system antenna by employing the use of Method of Moment on an array of Yagi-uda antenna. The parameters of the experimental antenna are derived and analyzed via Magnetic Vector Potential (MVP) operator. The accurate current flowing through the radiating elements of the direction finding system is analyzed using combination of Method of Moment technique and Magnetic Vector Potential (MVP) operator. This helps to avoid the detection of false alarms and inability of the system to detect remote targets. A typical direction finding system Yagi antenna is designed and operated at a frequency range of 0.6- 0.8 GHz. The antenna has a single reflector, an active (driven) element and three (3) parasitic directors. The antenna parameters are simulated using MatLab R2010a software tool. The average pointing vector of the designed Yagi antenna was obtained as 3.73watt per square metre, and Radiation Intensity value of about 9.400 coulomb per kilogram. The simulation results indicate an appreciable increase in directivity of 9.03dBi, an enhanced directive gain compared to that of the equivalent dipole antenna of 1.76dBi, signifying 7.27dBi enhancement.

Keywords: Yagi Antenna, Moment Method, Wire Antennas, Magnetic Vector Potential


K., Rao, A. K., Singh, and S. P., Singh, “Novel Design and Implementation of Base Line Interferometry Direction Finding Bli Df Algorithm”, SSRG International Journal of Electronics and Communication Engineering (SSRG-IJECE) – volume 1, issue8, pp 14¬ – 19, 2014.

S., Lingel, C., Rhodes, A., Cordova, J., Hagen, J., Kvitky, and L., Menthe, “Methodology for Improving the Planning, Execution, and Assessment of Intelligence, Surveillance, and Reconnaissance Operations”. Technical Report Prepared for the United States Air Force, 2008.

W. C. Alexander, “AM Antenna Computer Modeling: A Tutorial on Moment Method Computer Modeling for Performance Verification of AM Directional Arrays”. Crawford Broadcasting Company, 2012

S., Douglas, “4G Wireless Communications: Real World Aspects and Tools”. Intel Technology Journal, Vol. 18, Issue 3, 2014.

J. A., Weldon, “A Direction Finding System Using Log Periodic Dipole Antennas In A Sparsely Sampled Linear Array”. Msc Thesis, Department of Electrical Engineering, Wright State University, 2010.

A. A., Segun, A. M., Olasope, R. C., Okeowo, and A. A., Ismail. “Design and Numerical Analysis of A Single Half-Wave Dipole Antenna Transmitting At 235MHz Using Method Of Moment”. IJRRAS, Vol. 15, Issue 1, pp 107 – 119, 2013.

M. O., Ozec,. “Direction Finding Performance of Antenna Arrays On Complex Platforms Using Numerical Electromagnetic Simulation Tools”. A thesis submitted to Electrical and Electronics Engineering Department, Middle East Technical University, 2011.

C. A., Balanis, “Antenna Theory Analysis and Design”. A John Wiley & sons Inc. Publication, 3rd Edition, (2005).

Z., Raida, and I., Hudak, “Analysis of Wire Antennas by Moment Methods”. Radio engineering, Vol. 6, No. 2, pp 1 – 8, 1997.


Download data is not yet available.


How to Cite
Anaebo, O.F., Ezeh, G.N., Nosiri, O.C. and Agubor, C.K. 2020. Performance Improvement of a Direction Finding System Antenna Using Method of Moment (MOM). European Journal of Engineering and Technology Research. 5, 1 (Jan. 2020), 27–32. DOI: