NDLI: Analysis and placement of Yagi-Uda arrays in multi antenna receiving system

Content Provider	IEEE Xplore Digital Library
Author	Rao, P.H. Mishra, J.K. Chordia, A.
Copyright Year	1995
Description	Author affiliation: SAMEER-CEM, Madras, India (Rao, P.H.; Mishra, J.K.; Chordia, A.)
Abstract	In many situations the space limitations dictate the placement of the receiving antennas at a closer proximity to each other. The unavoidable electromagnetic coupling effects may degrade (or improve) the performance of the antennas and this must be taken into consideration while placing the antennas together. In this paper, the mostly used television receiving antenna (Yagi-Uda) is considered as a typical example of receiving antennas. The Yagi-Uda arrays on a building top at various configurations are analysed and the electromagnetic coupling between the antennas is calculated. The aim of this paper is to evaluate the changes in the gain of each antenna in the presence of other receiving antennas in various configurations. The approach is to calculate the input impedance of the antennas in presence of other antennas, which depends upon the self impedance and the mutual impedance between the antennas. The input impedance is then used to calculate the gain of each antenna in multi antenna receiving environment. The technique used is method of moments, the efficient way to characterise the actual currents on the antenna elements.
Starting Page	473
Ending Page	475
File Size	238687
Page Count	3
File Format	PDF
ISBN	0780332296
DOI	10.1109/ICEMIC.1995.501629
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-12-06
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna arrays Receiving antennas Impedance Electromagnetic coupling Voltage Equations TV Moment methods Current distribution Transmission line antennas
Content Type	Text
Resource Type	Article

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