Communications: radio wave antennas – Antennas – Measuring signal energy
Patent
1989-01-19
1990-11-06
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Measuring signal energy
343765, 342360, G01R 2908
Patent
active
049689835
ABSTRACT:
A radiation field characteristic measuring apparatus comprises a rotating device for rotating a tested object through the total solid angle thereof, and a device for receiving electromagnetic waves radiated from the object, thereby measuring electromagnetic field characteristics of the object with respect to the total solid angle. According to the present invention, almost all the components of the rotating device are formed of a nonmetallic material, and spaces to allow the passage of the electromagnetic waves are formed in the components of the rotating device. Thus, reflection and scattering of the electromagnetic waves are suppressed, so that the radiation field characteristics of the tested object, with respect to the total solid angle thereof, can be obtained with high accuracy. Also, the effective radiated power is measured with use of the arrival probability density function of radio waves as a weighting function. By doing this, the evaluation index of an antenna best suited for the actual radio conditions can be obtained.
REFERENCES:
patent: 4392140 (1983-07-01), Bastian et al.
Microwave Journal, "The Compact Range", Oct. 1974, pp. 30 and 32.
Catalog of ToyO Technica 1985, p. 708, Model Tower 58710A.about.30A.
Kabushiki Kaisha Toshiba
Wimer Michael C.
LandOfFree
Radiation field characteristic measuring apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Radiation field characteristic measuring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiation field characteristic measuring apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1309148