36-44GHz Variable Attenuator
Typical on wafer Sij parameters
Tamb.= +25°C, V1= -5 V, V2=-5 V, Minimum attenuation
Freq
S11
PhS11
S12
PhS12
S21
(GHz)
(dB)
(°)
(dB)
(°)
(dB)
25.0
25.5
26.0
26.5
27.0
27.5
28.0
28.5
29.0
29.5
30.0
30.5
31.0
31.5
32.0
32.5
33.0
33.5
34.0
34.5
35.0
35.5
36.0
36.5
37.0
37.5
38.0
38.5
39.0
39.5
40.0
40.5
41.0
41.5
42.0
42.5
43.0
43.5
44.0
44.5
45.0
45.5
46.0
46.5
47.0
47.5
48.0
48.5
49.0
49.5
50.0
-19.46
-21.44
-22.65
-21.57
-20.47
-18.31
-16.03
-14.38
-13.17
-11.99
-11.29
-10.46
-9.95
-9.70
-9.26
-8.57
-8.24
-8.09
-7.59
-7.42
-7.14
-7.28
-7.51
-7.56
-8.09
-8.60
-8.73
-9.43
-9.77
-10.25
-11.94
-13.58
-15.22
-17.80
-18.88
-17.78
-15.78
-13.90
-11.87
-10.25
-9.30
-8.64
-8.75
-8.46
-8.19
-8.02
-7.44
-8.08
-8.32
-8.44
-10.43
-17.4
-10.3
10.1
28.1
41.5
50.0
52.0
49.4
46.0
42.3
39.0
33.2
28.5
24.5
21.6
18.5
12.5
8.8
5.0
-0.6
-8.2
-12.8
-18.2
-24.6
-28.7
-31.7
-36.7
-40.2
-43.1
-50.9
-55.1
-55.1
-53.3
-43.2
-23.1
-6.7
5.7
7.5
9.1
5.3
-1.2
-8.3
-13.8
-18.1
-22.3
-25.5
-31.5
-39.7
-41.1
-48.7
-58.0
-3.02
-3.03
-3.09
-3.14
-3.11
-3.05
-3.12
-3.35
-3.51
-3.61
-3.78
-3.98
-4.02
-4.04
-4.00
-4.32
-4.37
-4.39
-4.32
-4.36
-3.92
-4.09
-4.02
-4.35
-4.14
-4.04
-3.72
-3.59
-3.75
-3.75
-3.73
-3.80
-3.79
-3.59
-3.70
-3.68
-3.84
-3.80
-4.10
-4.38
-4.71
-5.28
-5.73
-5.37
-4.85
-5.30
-6.30
-6.56
-6.92
-6.66
-5.71
53.8
45.6
37.9
30.8
23.6
15.3
7.1
-1.0
-8.7
-15.9
-22.1
-29.8
-36.6
-43.0
-49.9
-58.7
-63.5
-70.1
-76.6
-82.9
-90.0
-97.7
-105.9
-111.6
-118.8
-125.2
-132.8
-141.2
-150.8
-157.6
-165.3
-173.6
178.5
170.1
161.7
153.2
143.8
136.7
126.2
116.9
108.1
102.0
96.8
89.9
82.1
68.6
64.2
56.0
52.3
49.4
37.4
3/12
CHT4699-99F
PhS21
(°)
53.5
45.9
38.6
31.4
23.4
15.8
7.4
-0.6
-6.9
-15.1
-21.6
-28.6
-34.9
-42.3
-50.3
-57.9
-65.6
-69.3
-76.2
-80.2
-89.4
-98.4
-108.0
-116.3
-120.9
-128.0
-133.5
-143.8
-151.5
-161.0
-167.0
-173.3
178.7
169.1
161.0
152.2
144.0
134.1
122.6
114.1
106.2
101.1
95.0
84.7
78.0
69.2
60.2
56.5
50.4
47.2
36.4
S22
(dB)
-20.13
-21.81
-22.83
-22.67
-21.34
-18.76
-15.88
-13.89
-12.59
-11.73
-10.82
-10.07
-9.46
-8.83
-8.46
-7.98
-7.66
-7.69
-7.68
-7.69
-7.50
-7.63
-7.84
-8.18
-8.86
-9.49
-9.52
-9.77
-9.88
-10.39
-11.25
-12.21
-13.36
-14.03
-14.48
-14.80
-14.21
-12.11
-10.53
-9.63
-8.86
-7.90
-7.30
-6.64
-6.12
-6.08
-6.29
-6.02
-6.20
-6.63
-7.65
PhS22
(°)
-10.5
4.0
23.7
36.9
47.5
53.5
53.7
50.9
49.1
48.0
44.0
37.6
31.2
25.0
20.4
16.8
12.1
7.7
2.1
-2.8
-11.1
-15.5
-19.7
-22.1
-23.3
-24.4
-27.7
-31.1
-34.0
-38.3
-38.5
-39.6
-34.3
-28.1
-25.3
-14.9
-4.5
0.3
-0.5
-2.0
-2.7
-3.5
-9.1
-17.6
-25.3
-32.7
-35.3
-38.2
-45.0
-51.7
-56.9
-3.13
-3.04
-3.13
-3.14
-3.06
-3.06
-3.18
-3.31
-3.33
-3.52
-3.56
-3.56
-3.69
-3.68
-3.83
-3.67
-4.15
-4.30
-4.08
-3.88
-3.49
-3.71
-3.42
-4.08
-4.11
-4.05
-3.64
-3.47
-3.73
-3.83
-4.07
-3.89
-3.73
-3.65
-3.73
-3.72
-3.79
-3.73
-3.96
-4.65
-5.34
-5.54
-5.46
-5.51
-5.86
-6.14
-6.66
-7.14
-7.72
-7.18
-7.01
Ref. : DSCHT46992090 - 30 Mar 12
Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
