A fast, stable quadrature phase generator for multiple-pulse NMR
- 1 May 1990
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 61 (5) , 1474-1479
- https://doi.org/10.1063/1.1141155
Abstract
We present a fast quadrature phase generator for multiple pulse NMR experiments. The circuit maintains quadrature phase balance to 0.005°, and exhibits less than 0.03 dB of amplitude drift over a 24 hour period. The generator combines fine adjustability with a switching speed of 30 ns. It requires only a small number of rf components and can be made to operate over decade bandwidths.Keywords
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