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The article of record may be found at http://dx.doi.org/10.1063/1.1721325 The expression for the driving point impedance of a generalized electric circuit as vizualized by the author is partially integrated, and the physical significance of certain terms is discussed in connection with their application to antenna problems. Upon postulating an unattenuated traveling wave as a first approximation to the current along either a terminated rhombic or Vee antenna, a formula is derived for the free space radiation impedance of each. The expression radiation impedance is used for that portion of the driving point impedance which may be determined from the complex power into the external fields. The resistive component of the impedance for the rhombic antenna checks with the radiation resistance as listed by Leonard Lewin in a discussion of a paper by Donald Foster, with Lewin apparently obtaining his formula by the solid angle Poynting vector method.

Icing and wind subject structures such as power transmission towers and antennas to severe ice loads. The magnitude of the load depends upon the shape of the tower and upon the weather. This paper discusses the relationships between the structure and the load, the load and the weather, and the structure and the shape of the deposit. It describes some German experiences in the design of towers and presents tentative recommendations concerning the specifications of ice loads.