China Electronics Technology Group Corporation
No.26 Research Institute
78.5MHz Low-loss SAW Filter
20MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LB079DS02
Typical Performance
Frequency Respond
Passband Respond
Type Performance
-1.284
-11.284 3dB CF = 78.5908MHz
1dB = 19.6183MHz
-10.284
-10.784
-11.284
-11.784
-12.284
-12.784
-13.284
-13.784
3dB = 20.9997MHz
35dB = 24.4612MHz
-21.284
Insert Loss = -11.284dB
Passband Ripple = 1.0829dB
Ultimate Rejection = 32.237dB
Group Delay = 138.2485ns
Phase Linearity= 8.4604deg
Absolute Delay = 1162.6214ns
-31.284
-41.284
-51.284
-61.284
-71.284
-81.284
-91.284
-101.284
40
50
60
70
80
90
100
110
50
60
70
80
90
100
Frequency(MHz)
Horizontal: 10MHz/Div
Vertical: 10dB/Div
Horizontal: 10MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(f0±9MHz)
Phase Linearity(f0±9MHz)
Type Performance
Type Performance
15
10
5
1500
1400
1300
1200
1100
1000
900
X: 87.5
Y: 4.13
X: 78.5
X: 69.5
X: 78.5
Y: 1176
X: 69.5
Y: 1165
X: 87.5
Y: 1158
Y: 0.2924
Y: -0.1344
0
-5
-10
-15
-20
800
700
600
50
60
70
80
90
100
50
60
70
80
90
100
Frequency(MHz)
Frequency(MHz)
Horizontal: 10MHz/Div
Vertical: 100ns/Div
Horizontal: 10MHz/Div
Vertical: 5deg/Div
Smith Chart S11
Smith Chart S22
+j1.0
+j1.0
+j0.5
+j2.0
+j0.5
+j2.0
+j0.2
+j5.0
+j0.2
+j5.0
0.0
0.0
∞
∞
-j0.2
-j5.0
-j0.2
-j5.0
-j0.5
-j2.0
-j0.5
-j2.0
-j1.0
-j1.0
Part Number
Rev. Date
Ver.
LB079DS02
2007-04-20
1.0
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Page 3/4
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
