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3. As the antenna has interface with diameter of 3.5mm, N-3.5mm adapter needs to be connected to the test port of Analyzer, and
then use the calibration kit (option) with diameter of 3.5mm to calibrate the Analyzer as described in section 3.1.
4. After calibration, connect the measured antenna to Analyzer as shown in Figure 3.12.
Figure 3.12 Antenna Measurement Connection Diagram
Make corresponding adjustment on the displayed amplitude according to amplitude set-method described in section 3.5; then press
【
Marker
】
to turn on the marker function, so that you can see the VSWR situation of antenna at each frequency. Through
observation we can find that VSWR of antenna is smaller near 2,100MHz, with minimum at 2,104MHz.
Figure 3.13 VSWR Test of Terminal Antenna TZD-P021Z05-195
3.4.
Universal Devices and Parts Test
Addition to cable and antenna test, S3101A/B can also be used for testing the attenuation, cable connectors, cable joints, etc. This
part will measure the return loss of 10dB attenuation, as an example, with operations as follows:
1. Press
【
Meas
】
to choose “Return Loss” as the measurement format of Analyzer.
2. Press
【
Freq
】
to set measurement range of Analyzer according to the working frequency range of attenuator; if the frequency
range of attenuator is not clear, users can measure the return loss/ VSWR according to the system default frequency range
(1MHz - 4GHz).
