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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.

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 58 59

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