1575 MHz Bandpass Filter
AFL05235
Features
▪ L1 Band GPS
▪ Fully Shielded Component
▪ Frequency Stable over Temperature
Description
Surface mount, fully shielded, thin film ceramic filter manufactured
using ceramic designed for use on PCB 8-12 mils thick with permitivity
of 3.0-3.8.
Electrical Specifications
Center Frequency
Passband
Insertion Loss (@ Passband)
1575 MHz
1570 - 1580 MHz
3.5 dB
4.00 dB
VSWR
Rejection
2.0:1
40 dB
40 dB
Usable Temp Range
*50 Ohm System
@ 25C
-40C to +85C
1570 MHz to1580 MHz*
DC to 1175 MHz
1875 MHz to 3000 MHz
-55 to +125 degree C
Mechanical
Footprint LxW
Height
0.460 x 0.460
[11.68 x11.68]
0.113 [2.87]
inch
mm
Inch [mm]
Typical Performance
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
Frequency Response
-55
-60
-65
-70
-75
-80
-85
900
1000
1100
Magnitude in dB
1200
1300
1400
1500
1600
1700
1800
1900
Frequency in MHz
2000
2100
2200
2300
2400
2500
2600
Catalog specifications subject to change without notice
1of3
AFL05235
May 2013 Revision A
Mechanical Drawing
All units in inches
Mounting Information
PCB ground pattern length and width can be 0.002-0.003 inches larger than filter footprint.
Dimensions of filter launch and PCB launch pattern should be closely matched.
It is suggested that PCB ground metal be pulled back from RF I/O trace to account for component
alignment tolerance. Ground via depth and spacing should be set so as not to create any
resonances at the frequency of operation.
Reference SMT Filter Mounting application note for additional mounting information.
Dielectric Laboratories, Inc.
2777 Route 20 East, Cazenovia, NY 13035 USA
Phone: (315) 655-8710
Fax: (315) 655-0445
Email: sales@dilabs.com
3of3
AFL05235
May 2013 Revision A