Before revision: Description The waffle-iron filter was invented by Linda L. Becker at Stanford Research Institute in 1957.Young, p.10 The basis for the filter is the corrugated-waveguide filter.
After revision: Description The waffle-iron filter was invented by Linda L. Becker at Harvard Univercity in 1957.Young, p.10 The basis for the filter is the corrugated-waveguide filter.