This paper describes a method that can be applied for reducing the effect of the common mode currents when measuring the radiation of a small meandered monopole antenna. Moreover, it will be shown that the radiation of these currents can be extracted from the total radiated field. In order to validate our method, we considered a two-antenna measuring system consisting of a meandered monopole antenna (the antenna under test) and a loop antenna (the probe antenna). The measurements were performed in an anechoic chamber.
In this paper we propose a distance averaging method in order to reduce the effect of the common mode currents on the coaxial feed line when measuring the radiation of a log-periodic dipole array (LPDA). A small square loop was used as a probe.
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