KR Electronics, Inc.
KR Electronics, Inc.
General Description
KR Electronics part number 3157-1 is a 70 MHz band-
pass filter. The filter has a min 0.5 dB bandwidth of 30
MHz. The filter is amplitude equalized for flat passband
response. Stopband attenuation of 45 dB is maintained to
5 GHz. Elliptic type response for quick transition to the
stopband. Other frequencies are available. Please consult
the factory.
www.krfilters.com
Features
70 MHz Bandpass Filter
30 MHz min 0.5 dB Bandwidth
44 MHz typical 40 dB Bandwidth
Stopband maintained to 5 GHz
Elliptic Type Response
50
Source and Load
SMA Connectors
Typical Performance
Overall Response
(6 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3157-1, Rev 0, June 10, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 1
KR Electronics, Inc.
KR Electronics, Inc.
Typical Performance
Passband Amplitude & Group Delay
(1 dB/div & 50 nsec/div)
www.krfilters.com
Overall Response
(10 dB/div)
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3157-1, Rev 0, June 10, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 2
KR Electronics, Inc.
KR Electronics 3157-1
Specifications
Parameter
Filter type
Center Frequency (Fc)
Insertion Loss (at Fc)
0.5 dBc Bandwidth
1 dBc Bandwidth
3 dBc Bandwidth
40 dBc Bandwidth
Rejection at 48 MHz
Rejection at 93 MHz
Rejection to 5 GHz
Source and Load
Specification
Bandpass
70 MHz
2.8 dBa max
30 MHz min
34 MHz typical
37 MHz typical
44 MHz typical
45 dBc min
35 dBc min
45 dBc min
50
www.krfilters.com
Notes
2 dBa typical
31.6 MHz typical
>50 dBc typical
Physical Dimensions
Notes:
1. Dimensions in inches
2. Rectangular case
KR Electronics, Inc.
91 Avenel Street
Avenel, NJ 07001
© 2014, KR Electronics, Inc.
3157-1, Rev 0, June 10, 2014
Web
Email
Phone
Fax
www.krfilters.com
sales@krfilters.com
(732) 636-1900
(732) 636-1982
Page 3