Abstract
We propose and experimentally demonstrate an arbitrary UWB pulse
generator. The proposed technique is based on spectral pulse shaping and
frequency-to-time conversion. The reconfigurability of this technique comes
from changing the apodizaton of a chirped fiber Bragg grating (FBG) using a
series of heating elements (HE). By setting the appropriate temperature set
to the HEs, any predesigned UWB waveforms can be generated with high
precision. The effective isotropically radiated power (EIRP)-optimized and
U.S. Federal Communications Commission (FCC)-optimized pulses as well as the
traditional Gaussian monocycle and doublet UWB waveforms are generated which
are in excellent match with the designed target pulse shapes. While other
arbitrary pulse generators have used similar strategies (spectral shaping
and frequency-to-time conversion), ours uses inexpensive technologies with
the potential for practical, compact packaging.
© 2009 IEEE
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