User`s guide
Table Of Contents
- U3042AE12
- Title Page
- TOC
- Introduction
- Description
- Available Options
- Verifying the Shipment
- General Specifications
- Typical Reflection Tracking
- Front and Rear Panel Features
- System Setup with N5230A/C
- Controlling the Test Set with N5230A
- System Setup with N5242A
- Controlling the Test Set with N5242A or N5230C
- DUT Control Lines
- Test Set I/O Interface Commands
- Operational Check
- Troubleshooting Operational Check Failures
- Service Information
- Theory of Operation
- RF Switch Components
- S100 - Source to Ports (1, 5, 9 and 13)
- S200 - Source to Ports (2, 6, 10 and 14)
- S300 - Source to Ports (3, 7, 11 and 15)
- S400 - Source to Ports (4, 8, 12 and 16)
- S101 - Receiver to Ports (1, 5, 9 and 13)
- S201 - Receiver to Ports (2, 6, 10 and 14)
- S301 - Receiver to Ports (3, 7, 11 and 15)
- S401 - Receiver to Ports (4, 8, 12 and 16)
- RF Coupler Components
- System Block Diagram
- Safety and Regulatory Information
- Electrostatic Discharge Protection
- Contacting Agilent
User’s Guide 83
U3042AE12 Theory of Operation
Theory of Operation
The following is a description of the operation of the U3042AE12. Reference the
U3042AE12 block diagrams shown in Figure 67 on page 85. This section assumes the user
has a general understanding of couplers, switches, and network analyzers.
RF Switch Components
There are eight quad switches. The switches select the RF paths from the PNA source and
receiver through interconnect cables to test set port paths 5 thru 16.
S100 - Source to Ports (1, 5, 9 and 13)
Switch 100 provides control of the Source path to PNA Port 1 and ports 5, 9 and 13 to the
Test Set. In the state shown in the block diagram, switch 100 routes the RF Source back to
the PNA Port 1 and the Test Set Source paths to ports 5, 9 and 13 are terminated.
S200 - Source to Ports (2, 6, 10 and 14)
Switch 200 provides control of the Source path to PNA Port 6 and ports 10 and 14 to the
Test Set. In the state shown in the block diagram, switch 200 routes the RF Source back to
the PNA Port 2 and all unused Test Set ports (6, 10 and 14) Source paths are terminated.
S300 - Source to Ports (3, 7, 11 and 15)
Switch 300 provides control of the Source path to PNA Port 7 and ports 11 and 15 to the
Test Set. In the state shown in the block diagram, switch 300 routes the RF Source back to
the PNA Port 3 and all unused test set ports (7, 11 and 15) source paths are terminated.
S400 - Source to Ports (4, 8, 12 and 16)
Switch 400 provides control of the Source path to PNA Port 4 and ports 8, 12 and 16 to the
Test Set. In the state shown in the block diagram, switch 400 routes the RF Source back to
the PNA Port 4 and all unused test set ports (8, 12 and 16) Source paths are terminated.
S101 - Receiver to Ports (1, 5, 9 and 13)
Switch 101 provides control of the A Receiver path to PNA Port 1 and ports 5, 9 and 13 to
the Test Set. In the state shown in the block diagram, switch 101 routes the Coupler Arm
from the PNA Port 1 to the A Receiver and all unused test set ports (5, 9 and 13) Coupler
Arm paths are terminated.
S201 - Receiver to Ports (2, 6, 10 and 14)
Switch 201 provides control of the A Receiver path to PNA Port 2 and ports 6, 10 and 14 to
the Test Set. In the state shown in the block diagram, switch 201 routes the Coupler Arm
from the PNA Port 2 to the A Receiver and all unused Test Set ports (6, 10 and 14) Coupler
Arm paths are terminated.