Title :
Linear spiral sampling for the bipolar planar near-field antenna measurement technique
Author :
Yaccarino, Robert G. ; Williams, Lawrence I. ; Rahmat-samii, Yahya
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
fDate :
7/1/1996 12:00:00 AM
Abstract :
This paper investigates linear spiral sampling for bipolar planar near-field antenna measurements. This sampling scheme is, depending on range implementation, the most rapid polar near-filed data acquisition mode. The near-field to far-field transformation is performed using a modified optimal sampling interpolation (OSI)/fast Fourier transform (FFT) approach. Measured far-field pattern results for a waveguide-fed slot array antenna are presented and are shown to have excellent agreement with results obtained from a conventional bipolar measurement
Keywords :
antenna feeds; antenna radiation patterns; antenna testing; fast Fourier transforms; interpolation; signal sampling; slot antenna arrays; waveguides; FFT; bipolar planar near-field antenna measurement; fast Fourier transform; linear spiral sampling; measured far-field pattern; near-field to far-field transformation; optimal sampling interpolation; polar near-filed data acquisition mode; range implementation; waveguide-fed slot array antenna; Antenna measurements; Geometry; Interpolation; Measurement techniques; Motion measurement; Position measurement; Probes; Sampling methods; Spirals; Time measurement;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
