Title :
Modeled and measured mutual impedances, element patterns, and sensitivity for a 19 element focal plane array
Author :
Jones, David A. ; Warnick, Karl F. ; Jeffs, Brian D. ; Landon, Jonathan ; Waldron, Jacob ; Fisher, J. Richard ; Norrod, Roger
Author_Institution :
Brigham Young Univ., Provo, UT
Abstract :
The dipole array has an approximate analytical electrical model, which facilitates the development and testing of signal processing algorithms for the FPA. To verify the accuracy of the analytical approach, we have also modeled the array using the finite element method (FEM). In this paper, we compare the approximate analytical and FEM models to preliminary experimental measurements. Results are given for mutual and self impedances, element patterns for the bare array (no reflector antenna), and the sensitivity of the FPA on the Green Bank 20 Meter Telescope.
Keywords :
antenna radiation patterns; dipole antenna arrays; finite element analysis; focal planes; radioastronomy; FEM; beamforming array feed; dipole array; element patterns; finite element method; focal plane array feed; mutual impedances; radio astronomy observations; signal processing algorithms; Algorithm design and analysis; Analytical models; Antenna arrays; Antenna measurements; Finite element methods; Impedance measurement; Reflector antennas; Signal analysis; Signal processing algorithms; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619543
