Precise Analysis of Commercial Log-periodic Dipole Arrays Using Wire-antenna Algorithms
نویسندگان
چکیده
The log-periodic dipole array (LPDA) has become the most popular commercial antenna for reception of TV signal in VHF and UHF bands in Europe. The antenna consists of two booms of a square cross section to which dipoles are attached (Figure 1). The booms play the role of the feeding two-conductor line. The dimensions of the boom are relatively large compared to the wavelength and the dipole length. Hence, this antenna cannot be accurately analyzed as a wire structure unless special precautions are taken. On the other hand, the wire-antenna computer programs are the fastest and thus the most convenient tool for interactive design. The aim of our paper is to span this gap.
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