B4179 Datasheet, PDF (3/7 Pages) EPCOS – SAW Components Low-Loss Filter for Mobile Communication 897,5 MHz

SAW Components
Low-Loss Filter for Mobile Communication
Data sheet
B4179
897,5 MHz
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
Center frequency
T = 25 +- 2 ˚C
Z_S = 100 Ω including matching network
Z_L = 50 Ω
min.
typ. max.
f_C
—
897,5
— MHz
Maximum insertion attenuation
α_max
880,0 ... 915,0 MHz
—
2,6
3,0 dB
Amplitude ripple (p-p)
∆α
880,0 ... 915,0 MHz
—
0,9
1,3 dB
Output phase balance (φ(S₃₁)−φ(S₂₁)+180˚)
880,0 ... 915,0 MHz
-7
—
7 degree
Output amplitude balance (|S₃₁/S₂₁|)
880,0 ... 915,0 MHz
-1,0
—
1,0 dB
Input VSWR
880,0 ... 915,0 MHz
—
1,6
2,0
Output VSWR
880,0 ... 915,0 MHz
—
1,8
2,0
Attenuation
0,0
800,0
925,0
935,0
960,0
1850,0
3660,0
... 800,0
... 860,0
... 935,0
... 960,0
...1850,0
...3660,0
...6000,0
α
MHz
MHz
MHz
MHz
MHz
MHz
MHz
Test matching network
45
60
— dB
30
50
— dB
9
12
— dB
20
30
— dB
30
40
— dB
20
30
— dB
10
23
— dB
L_p = 27 nH
(20% tolerance, Q = 30 )
Lp
3 Dec 05, 2001