Theory Of Operation
4-4 Functional Description of System Components
VectorStar ME7838 Series MM
PN: 10410-00306 Rev. F
4-5
3739A Broadband Test Set
The 3739A Broadband Test Set performs the following tasks:
•
Decoding the control logic sent from the MS464xA VNA
•
Switching the RF signal between Port 1 and Port 2
•
Leveling control of LO signals
•
Amplifying RF and LO signals
•
Multiplexing various level detector signals to MS464xA VNA
•
Providing DC power for both Millimeter-Wave Modules
•
Passing IF signals from Millimeter-Wave Modules to MS464xA VNA
shows the block diagram of the 3739A Test Set.
The Port 1 and Port 2 LO Out ports have a typical power output at 5 to 10 GHz of +6 dBm.
The Port 1 and Port 2 RF Out ports have minimum power output at 26 to 40 GHz of +10 dBm.
Figure 4-3.
3739A Test Set Block Diagram
Control PCB
Power
Supply
a1 IF
Out
b1 IF
Out
a2 IF
Out
b2 IF
Out
External I/O
To VNA
Ext ALC
From VNA
Ext Analog Out
RF
In
Port 1
LO
Out
Port 1
RF
Out
LO1
In
Port 1
IF In
Port 2
RF
Out
Port 2
LO
Out
LO2
In
Port 2
IF In
Port 2
Pwr &
Ctrl
Port 1
Pwr &
Ctrl
Port 2 Pwr & Ctrl
Port 1 Pwr & Ctrl
LO Pwr Ctrl
LO Pwr Ctrl
LO Pwr Ctrl
Summary of Contents for VectorStar ME7838 Series
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