Pulse Profile Measurement
R&S
®
ZVAX24
21
Quick Start Guide 1312.7985.62 ─ 03
3 Pulse Profile Measurement
This chapter describes the use of an R&S ZVA vector analyzer and an R&S
ZVAX24
extension unit for creating a pulsed RF signal and performing pulse profile measure-
ments. Other R&S
ZVAX24 measurements involve similar measurement stages. For an
overview of the R&S
ZVAX24 functionality refer to
3.1 Required Equipment
The pulse profile measurement can be carried out with the following equipment:
●
Network analyzer (NWA) R&S ZVA24 with a firmware version V2.60 or higher and a
motherboard part number 1305.6470.02 (see "Info > Hardware Info ...")
●
Option R&S ZVA-K27, "Pulse Generator"
●
Option R&S ZVA-K7, "Pulsed Measurements"
●
Option R&S ZVA<n>-B16, "Direct Generator/Receiver Access" at source port 1
●
One R&S
ZVAX24 extension unit equipped with option R&S ZVAX24-B271, "Pulse
Modulator Generator Port 1"
3.2 Measurement Principle
The pulse modulator option R&S ZVAX24-B271 provides a pulsed source signal at the
NWA port 1. Pulse width and period are determined by the used pulse generator, which
can e.g. be the internal pulse generator of the NWA provided by option R&S ZVA-B27.
This option also provides a second "Sync" signal that can be used to synchronize the
measurement to the rising edge of the generated pulses.
The DUT is connected between the test ports 1 and 2 of the analyzer; the transmitted
pulsed signal is measured at port 2 using the analyzer's "Pulse Profile" mode.
The measurement involves the following steps:
1. Connection of the extension unit
2. Configuration of the extension unit for the selected measurement and test setup
("ZVAX Path Configuration")
3. Definition of the pulse generator and the trigger settings
4. Configuration of the "Pulse Profile" mode
5. Calibration
6. Connection of the DUT and measurement
Required Equipment
