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7mm @ 42 GHz
82”
~ 80K
3mm @ 90 GHz
38”
~200K
3mm @ 115 GHz
30”
~ 600K
Table 5 Beam widths and average Tsys's
Frequency
Efficiency
Comment
16 GHZ
0.55 +/- 0.05
2009 Measurements by Urquhart et al
20 GHz
0.5 +/- 0.03
2009 Measurements by Urquhart et al
25 GHz
0.55 +/- 0.05
2009 Measurements by Urquhart et al
31 GHz
0.5 +/- 0.05
2009 Measurements by Urquhart et al
35 GHz
0.57 +/- 0.02
2009 Measurements by Urquhart et al
37 GHz
0.58 +/- 0.02
2009 Measurements by Urquhart et al
43 GHz
0.55 +/- 0.03
2009 Measurements by Urquhart et al
45 GHz
0.53 +/- 0.03
2009 Measurements by Urquhart et al
49 GHz
0.46 +/- 0.03
2009 Measurements by Urquhart et al
86 GHz
0.49 +/- 0.03
Based on 2005 data (Ladd et al)
100 GHz
0.44 +/- 0.03
Based on 2005 data (Ladd et al)
115 GHz
0.42 +/- 0.02
Based on 2005 data (Ladd et al)
Table 6 Antenna efficiency
Figure 1 Focus positions at 86 GHz measured July 2012. Gaussian fit to data suggests
best focus position is at 16.2mm.
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