Performance Characteristics of Loop Antennas above a Ground Plane of Finite Extent
This paper examines the characteristic behaviors of the feed-point input impedance and radiation fields of two thin-wire loop antenna types(one a circular-loop and the other,a square-loop antenna)both,one wavelength(1λ)long at the operating frequency,and located over a ground plane which is of the wire-grid variety 1,and whose extent is finite.Using the moment-method approach,computational results are obtained in the presentation,for the antennas performance parameters alluded to in the foregoing,to suggest that the square loop antenna resonates when located at a distance of 0.054λ above the ground plane; whereas the corresponding distance for the circular-loop emerges as 0.132λ.The results also indicate that the antennas directive gains and input impedance profiles are such as to suggest that they may be suitable for practical applications over a wide range of frequencies.A comparison carried out in the paper,between computed values of input impedance and corresponding measurement results reported elsewhere 2,very clearly indicate that the approach described in this presentation is valid.
A.A.Ayorinde S.A.Adekola A.Ike Mowete
Department of Electrical and Electronics Engineering,Faculty of Engineering University of Lagos,Lago Department of Electrical and Electronics Engineering,Faculty of Engineering University of Lagos,Lago
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
769-774
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）