The antenna shape in the line for microwave power transmission by a long beam

The energy transmission coefficient from the radiating antenna to the receiving antenna depends in particular on the antenna shapes. Two lines are compared in the paper. The antennas in these lines are connected by affinor transformations. It is shown that the transmission coefficient in such lines are equal one to other. The conditions for the antennas shapes which should be fulfilled to make this coefficient maximal are found in the second part-in the assumption that antennas consisting of many separate "islands" are not considered, although such antennas give probably the best solution. The method of finding the optimal shape of the radiating antenna, if the shape of the receiving antenna is given, is also considered.