Accession Number:

AD0292969

Title:

A REVIEW OF PHASE CENTERS

Descriptive Note:

Corporate Author:

AERONAUTICAL SYSTEMS DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1962-10-01

Pagination or Media Count:

1.0

Abstract:

The concept of phase center is introduced as it is used in standard textbooks o antenna theory. An elementary consideration of wave functions is used to show that the idea is most readily applied when the far field radiated by an element can be described as having equiphase surfaces that are spherical or cylindrical. While is i plificatio is useful in general discussions, actual determination of phase center location for an antenna is shown to require more thorough investigation. Principal-plane phase centers are found to be, in general, non-coincident. If the antenna under consideration can be viewed as an aperture, this separation between phase centers can be taken as a phase error and corrections can be introduced. Experimental techniques for determi ing pha e center location and a scattering-theory application of the concept are discussed. The importance of the ph se center is e tablished for those cases in which it is defined. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE