saw filter
Steep broadband filter for cable modems
Submitted by Ionela on Wed, 07/02/2008 - 16:13.
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EPCOS has now introduced the B1642 SAW filter for broadband TV and Internet access via cable modems. It has been developed specifically for the new international DOCSIS 3.0 standard (Data Over Cable Service Interface Specification), which will be used primarily in the USA and South Korea. This standard places particularly high demands on receivers and filters because several TV channels are bundled in a 100 MHz wide frequency band at a transmission rate of over 100 Mbit/s. |
Excellent selectivity for GLONASS navigation system
Submitted by Ionela on Fri, 05/09/2008 - 07:19.
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EPCOS has developed a SAW filter for the Russian navigation system GLONASS with very good nearby selectivity. This is particularly important due to the very close proximity of just 15 MHz to the neighboring satellite telephone service Inmarsat. Even in the nearby range the new SAW filter achieves an attenuation level of 25 dB over the entire temperature range of -40 to +85 °C. |
