A modification of the two-antenna method to determine the phase center location as well as the gain of a wideband antenna

Autor:	David C. Mooradd, Tyler Schmitt, Herbert M. Aumann
Rok vydání:	2015
Předmět:	Physics Coaxial antenna business.industry Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Antenna factor Radiation pattern Optics Phase center Antenna noise temperature Antenna gain Antenna (radio) business Computer Science::Information Theory
Zdroj:	2015 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting.
Popis:	A technique is presented for determining the amplitude center or phase center location of a wideband Vivaldi antenna at measurement distances of a few wavelengths. It is based on the well known two-antenna gain measurement technique but makes the antenna separation a variable. The phase center separation is shown to be proportional to the derivative of a transmission matrix loss parameter which is constant and independent of the antenna separation. A linear least squares fit to transmission loss parameters measured at several antenna separations is shown to yield the antenna gain and phase center location.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57e93553682aa97a9d73450a3fbc0f74 https://doi.org/10.1109/aps.2015.7304814 Zobrazit plný text záznamu