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Fig. 5

 

Figure 5 above shows transfer function data taken on the same L-17D DLVA unit described in the preceding page. This illustrates the excellent log linearity of the L-17D over a 45 dB power range (90 dB voltage range). Measurements were made every 2 GHz from 2 to 18 GHz. Deviation plots show that all the data points lie within a ±½ dB band over the entire frequency range. These data were also taken by Hung Nguyen.

The next two pages show data taken with a prototype hybrid DLVA, constructed using the L-2010 (which is the unpackaged L-17D die (see Fig. 3). This hybrid unit was designed by Steve Capasso.
 
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February 20, 2008
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