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IPC-TM-650
Number Subject Date
Revision
Page 3 of 7
2.5.5.15
RelativePermittivityandLossTangentUsinga
06/22
Split-PostDielectricResonator
N/A
4 Apparatus or Material
4.1 Test System
The schematic diagram of the test system is shown in Figure 2. The test can be conducted at room temperature
or an elevated temperature as indicated.
Figure2–SchematicDiagramofTestSystem
4.2 Test Fixture Parameters
Table 2 shows the typical relationship between the SPDR test fixture’s nominal frequency and
h
g
and D. For different test frequencies, the corresponding SPDR test fixture of nominal frequency shall be used.
Table 2 – Test Fixture Configurations
SPDRTestFrequency
[GHz]
D
mm[inch]
hg
mm[inch]
1 120 [4.7] 6.0 [0.24]
3 50 [2.0] 3.0 [0.12]
5 to 6 30 [1.2] 2.0 [0.08]
9 to 10 22 [0.9] 0.9 [0.035]
13 to 16 15 [0.6] 0.6 [0.024]
18 to 20 10 [0.4] 0.5 [0.020]
4.3 Vector Network Analyzer (VNA)
The frequency range of the VNA shall be 500 MHz to 20 GHz, The dynamic range of the
VNA shall be more than 60 dB.
4.4 Calibration Reference
The calibration equipment shall include a standard reference sample. For example, a single-crystal
quartz or equivalent reference, and a calibration assembly for the VNA.