Agilent Technologies 85050B, Руководство пользователя и сервисное руководство

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2-6 85050B
Specifications
Electrical Specifications
Electrical Specifications
The electrical specifications in Table 2-3 apply to the devices in your calibration kit when
connected with an Agilent precision interface.
Table 2-3 Electrical Specifications for 85050C 7 mm Devices
Device Specification Frequency (GHz)
Lowband loads
≥
52 d
Β
Return loss
dc to 2 GHz
a
a. This lowband fixed load is not used or specified at frequencies greater than 2 GHz in
this kit. The same device having the same part number may be used elsewhere in
another kit, or by itself and have the following characteristics:
≥
52 dB Return loss, dc to 5 GHz (specified)
≥
46 dB Return loss, 5 GHz to 6 GHz (specified)
≥
23 dB Return loss, 6 GHz to 18 GHz (typical)
Broadband loads
≥
38 d
Β
Return loss dc to 18 GHz
Sliding loads
b
b. Assuming proper usage, the residual return loss after calibration
specifications for the sliding load termination includes the quality of the
airline portions within the sliding load, combined with the effective stability of
the sliding element. Proper usage includes the following practices: (1)
Connector mating surfaces are clean; (2) The changes in slide positioning are
NOT done in equal steps — equal steps results in very poor calibration for
some portions of the frequency range; (3) The center conductors of testport
connectors are nominally set back from the outer conductors. Sliding loads are
designed to allow the center conductor to be moved. The position of the sliding
load center conductor should be set by a reference block and not positioned
flush against the center conductor of the testport.
≥
52d
Β
Return loss
dc to 18 GHz
c
c. The ratio of center conductor diameter to outer conductor diameter is selected from the
mechanical tolerance range to meet electrical specifications.
Short
d
(collet style)
d. The specifications for the opens and shorts are given as allowed deviation from the
nominal model as defined in the standard definitions.
±
0.2
°
from nominal dc to 2 GHz
e
e. Nominal, in this case, means the electrical characteristics as defined by the calibration
definitions supplied on the calibration definitions disk.
±
0.3
°
from nominal 2 to 8 GHz
e
±
0.5
°
from nominal
8 to 18 GHz
e
Open
d
(with collet pusher)
±
0.3
°
from nominal
dc to 2 GHz
e
±
0.4
°
from nominal 2 to 18 GHz
e
±
0.6
°
from nominal
8 to 18 GHz
e