Atec Agilent-8510C - Manual (Page 13)

13
Agilent 8511A/8511B frequency
converters
45 MHz to 26.5 GHz/45 MHz to 50 GHz
Description
Combining the 8511A or 8511B frequency converter with
the 8510C network analyzer results in a four channel
receiver/signal processor operating over a 45 MHz to 26.5
or 50 GHz frequency range. This system offers flexibility
in the configuration of a user-supplied signal separation
network to meet the needs of custom measurements. The
8511A/B contains four separate RF to IF converters all of
which can operate over the entire dynamic range of the
system. Either the a1 or a2 input must be defined as the
reference channel to maintain phase lock and to track the
RF source.
Dynamic accuracy
The following plots show the worst case magnitude
and phase uncertainty due to IF residuals and detector
inaccuracies. These plots exclude uncertainty due to
noise, frequency response, directivity, port matches,
crosstalk, and connector repeatability. Reference power
is –20 dBm.
Measurement uncertainty
Magnitude
Input port characteristics
The following specifications show the uncorrected
system characteristics at the four measurement ports.
Frequency range (GHz)
0.045–8 8–20
20–26.5 26.5–40 40–50
Impedance match
(all four ports)
8511A 17 dB 15 dB 9 dB —— ——
8511B 17 dB 15 dB 9 dB 9 dB 7 dB
Frequency
response tracking
1
8511A ±1 dB ±1 dB ±1 dB —— ——
8511B ±1 dB ±1 dB ±3 dB ±3 dB ±3 dB
Crosstalk 2
8511A 115 dB 116 dB 114 dB —— ——
8511B 116 dB 114 dB 107 dB 107 dB 105 dB
The following specifications describe the system
performance for the 8510C network analyzer with
the 8511A/B frequency converter.
Dynamic range (on all inputs)
Frequency range (GHz)
0.045–8
8–20 20–26.5 26.5–40 40–50
Maximum power
measured at port 2
8511A –10 dBm –10 dBm –15 dBm —— ——
8511B –9 dBm –8 dBm –12 dBm –12 dBm –17 dBm
Reference power
at port 1 (nominal)
8511A –20 dBm –20 dBm –20 dBm —— ——
8511B –20 dBm –20 dBm –20 dBm –20 dBm –20 dBm
Minimum power
measured at port 2
8511A –112 dBm –115 dBm –113 dBm —— ——
8511B –113 dBm –113 dBm –106 dBm –106 dBm –104 dBm
Receiver
dynamic range
8511A 102 dB 105 dB 98 dB —— ——
8511B 104 dB 105 dB 94 dB 94 dB 87 dB
System
dynamic range
8511A 92 dB 95 dB 93 dB —— ——
8511B 93 dB 93 dB 86 dB 86 dB 84 dB
Phase
8511A general information
Input ports
Connector type (all inputs): 3.5 mm (f)
Impedance: 50
Ω nominal
8511B general information
Input ports
Connector type (all inputs): 2.4 mm (f)
Impedance: 50
Ω nominal
1. Ratio measurement of any two ports, excludes slope.
2. After error-correction, response and isolation calibration assumes no noise.