WLAN Lowpass Filter 2.4–2.5 GHz

WLAN Lowpass Filter
2.4–2.5 GHz
Preliminary
禾 頻 科 技 LP204B
LP204B
Applications
■ WLAN Systems Including 802.11 b,g.
Features
■ RoHS Compliant
■ SMD Package, 2.0 x 1.25 x 0.65 mm
Description
The LP204B is a ceramic lowpass filter using LTCC
design and manufacturing technology.
The design is
compatible with 802.11 WLAN.
Electrical Specifications at
25°C
Parameter
Min.
Pass band
Typ.
2.4
Pass band Insertion Loss
0.37
Max.
Unit
2.5
GHz
0.5
dB
Pass band Return Loss
12
19
dB
Attenuation @3.9-4GHz
27
33
dB
Attenuation @4.8-5GHz
30
35
dB
Attenuation @7.2-7.5GHz
40
46
dB
Typical Performance Data
LP204B Frequency Response
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
0.0003
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
Frequency (GHz)
5/F,No.61,Lane 90,Kung Wu Road, Lung Tan, Tao Yuan, Taiwan
Tel:886-3-4091046 Fax:886-3-4090758 Email:[email protected]
Specifications subject to change without notice. Rev.050927
8
8.5
WLAN Lowpass Filter
2.4–2.5 GHz
Preliminary
禾 頻 科 技 LP204B
Printed Circuit Board Layout
5/F,No.61,Lane 90,Kung Wu Road, Lung Tan, Tao Yuan, Taiwan
Tel:886-3-4091046 Fax:886-3-4090758 Email:[email protected]
Specifications subject to change without notice. Rev.050927