Antenna efficiecty measurement

Abstract

Abstract PURPOSE:To enable the measurement of an antenna efficiency at a high accuracy, by providing a radio wave scattering body in the perimeter of a transmitting antenna and a reference antenna. CONSTITUTION:A reference antenna 12 is placed in a space surrounded by a radio scattering body 11 and power is supplied with an oscillator 13 to transmit a radio wave. The transmission radio wave is received with a rotating receiving antenna 14 to be taken into a intensity of electric field analyzer 15, which analyzed it as receiving probability distribution to prepare a receiving probability distribution graph. Then, an antenna 12 to be measured is surrounded by a radio wave scattering body 11 linkwise and a measurement by the same procedure is performed to prepare a receiving level vs receiving probability distribution graph. Thus, the antenna efficiency of the antenna 12 being measured can be measured at a high accuracy relatively from a receiving level difference of the same probability between the two graphs.

Inventors

• 👤 Tadahiko Maeda
• 👤 忠彦 前田

Bibliographic Details