Thank you for printing my comments in your March issue concerning Yeap Yean Wei's article in the December 2006 issue ("Design A Simple, Low-Cost UWB Source," p. 68) and for his response to my comments as well.

It seems to me that we both have similar experience with the matching problem of sources and antennas to be used in UWB technology.

I am looking forward to Yeap Yean Wei's future paper in which he promised to describe the "real-world" problems and results of his UWB development.
Jiri Polivka
Spacek Labs, Inc.