KR Electronics, Inc. KR Electronics, Inc. www.krfilters.com General Description KR Electronics part number 3157-1 is a 70 MHz bandpass 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. 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 [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR Electronics, Inc. Typical Performance www.krfilters.com Passband Amplitude & Group Delay (1 dB/div & 50 nsec/div) 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 [email protected] (732) 636-1900 (732) 636-1982 Page 2 KR Electronics, Inc. www.krfilters.com KR Electronics 3157-1 Specifications Parameter Specification Filter type Bandpass Center Frequency (Fc) Notes 70 MHz Insertion Loss (at Fc) 2.8 dBa max 2 dBa typical 0.5 dBc Bandwidth 30 MHz min 31.6 MHz typical 1 dBc Bandwidth 34 MHz typical 3 dBc Bandwidth 37 MHz typical 40 dBc Bandwidth 44 MHz typical Rejection at 48 MHz 45 dBc min Rejection at 93 MHz 35 dBc min Rejection to 5 GHz 45 dBc min Source and Load >50 dBc typical 50 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 [email protected] (732) 636-1900 (732) 636-1982 Page 3