IPC-TM-650 EN 2022 试验方法--.pdf - 第454页
Figure 14 Enlarged Exploded Side View Sectioned Through a Probe Line Sh owing a Lap Conductor Joint IPC-TM-650 Page 22 of 25 Number 2.5.5.5 Subject Stripline Test for Permittivity and Loss Tangent (Dielectric Constant an…
Figure 13 Exploded Side View of Assembly
IPC-TM-650
Page 21 of 25
#5-40
screw
and
nut
i
—
#1-72
cap
screw
三
I
Base
plate
1
IPC-2555-13
Resonator
test
pattern
board
Test
specimen
Ground
plane
foil
Clomp
plate
ase
plate
2
Base
stripline
board
End
launch
3
mm
jack-stripline
connector
body
Base
cover
board
Spacer
board
with
thickness
of
pattern
card
Number
2.5.5.5
Subject
Stripline
Test
for
Permittivity
and
Loss
Tangent
(Dielectric
Constant
and
Dissipation
Factor)
at
X-Band
Date
3/98
Revision
C
Figure 14 Enlarged Exploded Side View Sectioned Through a Probe Line Showing a Lap Conductor Joint
IPC-TM-650
Page 22 of 25
Number
2.5.5.5
Subject
Stripline
Test
for
Permittivity
and
Loss
Tangent
(Dielectric
Constant
and
Dissipation
Factor)
at
X-Band
Date
3/98
Revision
C
Stripline
lap
joint
region
Clamp
plate
Base
plate
Test
specimen
Base
cover
board
Base
stripline
board
Resonator
pattern
board
IPG-2225-14
Figure 15 Test Fixture Construction, Older Design
IPC-TM-650
Page 23 of 25
r
50.11
Q
]
0
0
r
Dim
”B”
—
76.76
-
73.58
-
72.67
69.49
-
66.32
-
17.75
14.58
6.65
3.48
3.05
hole,
2
places
Drill
&
tap
for
#4-40
screw,
4
places
Drill
&
tap
for
#1-72
screw,
4
places
17.75
v—
14.58
!■*—
6.65
-
•-
548
—
—
1.40
v
—
6.35
DETAIL
B
aluminum
one
req'd
26.64—
10.44
—
7.26
——
—
4.09
—
3.17
—
Nate:
Specimen
nominal
thickness
1.27
1.57
Dimension
"A"
for
base
plate
1
4.78
5.08
Dimension
"A"
for
base
plate
2
4.47
4.78
©
©
©
K3F
mrn
A
17.75
14.58
17.75
14.58
6.65
3.48
3.05
hole,
2
places
DETAIL
A
aluminum
one
req'd
Drill
3.05
&
countersink
for
#4
FH
screw,
4
places
Drill
2.06
&
countersink
for
#1
FH
screw,
4
places
—
76.76
一
73.58
-
72.67
-
69.49
-
66.32
—
50.11
26.64
10.44
7.26
——
4.09
—
3.17
6.65
3.48
二
及
l)
=K5F
册
1.40
6.35
PC-2555-15
Number
2.5.5.5
Subject
Stripline
Test
for
Permittivity
and
Loss
Tangent
(Dielectric
Constant
and
Dissipation
Factor)
at
X-Band
Date
3/98
Revision
C
r-TTHn
29.0
n
OL
996L
R7Z