China Electronics Technology Group Corporation
No.26 Research Institute
900MHz SAW Filter
30MHz Bandwidth
Part Number: LBT90004
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Respond
Type Performance
8.4784
-1.5216
-11.5216
-1.0216
-0.0216
Passband Respond
Type Performance
-0.5216
-21.5216
Magnitude(dB)
A m plitude ripple(dB )
-31.5216
-41.5216
-51.5216
-61.5216
-1.5216
-2.0216
-2.5216
-3.0216
-71.5216
-81.5216
-91.5216
750
800
850
900
Frequency(MHz)
950
1000
1050
-3.5216
-4.0216
860
870
880
890
900
Frequency(MHz)
910
920
930
940
950
Horizontal: 50MHz/Div
Vertical: 10dB/Div
Horizontal: 10MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(f0±15MHz)
Type Performance
250
250
Phase Linearity(f0±15MHz)
Type Performance
200
200
150
150
100
100
X: 885
Y: 71.2
X: 900
Y: 34.61
X: 915
Y: 39.52
50
G roup Delay T im e(ns )
X: 885
Y: 17.49
X: 900
Y: -7.544
X: 915
Y: 18.2
D egree(deg)
920
930
50
0
0
-50
-100
-50
-150
-100
-200
-150
-250
-200
870
880
890
900
Frequency(MHz)
910
-300
870
880
890
900
Frequency(MHz)
910
920
930
Horizontal: 10MHz/Div
Vertical: 50ns/Div
Horizontal: 10MHz/Div
Vertical: 50deg/Div
Smith Chart S11
+j1.0
+j0.5
+j2.0
Smith Chart S22
+j1.0
+j0.5
+j2.0
+j0.2
+j5.0
+j0.2
+j5.0
0.2
0.5
1.0
2.0
5.0
0.2
0.5
1.0
2.0
0.0
∞
0.0
5.0
∞
-j0.2
-j5.0
-j0.2
-j5.0
-j0.5
-j1.0
-j2.0
-j0.5
-j1.0
-j2.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBT90004
2009-09-28
1.0
Page
3/3
Fax: +86-23-62808382
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
