In:
Advances in Radio Science, Copernicus GmbH, Vol. 8 ( 2010-10-01), p. 243-250
Abstract:
Abstract. A spherical near-field antenna measurement facility employing a time domain hardware gating technique is presented. On-off keyed sinusoidal impulses are used as stimuli requiring wideband antennas with a bandwidth in excess of 400 MHz. The received signal is evaluated in the time interval after reaching the steady state and before multipath components arising in the non-ideal anechoic chamber distort the signal. An application specific pulse generator synthesizing sinusoidal impulses with a sub-nanosecond settling time and a low-cost equivalent time (ET) sampling receiver developed and optimized for this particular purpose are described. Measurement results of typical ultra-wideband (UWB) antennas show a significant improvement of the measured antenna pattern compared to conventional techniques.
Type of Medium:
Online Resource
ISSN:
1684-9973
DOI:
10.5194/ars-8-243-2010
Language:
English
Publisher:
Copernicus GmbH
Publication Date:
2010
detail.hit.zdb_id:
2135129-6