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April 2008 [Components] Cut Loss In Low-Voltage, Wideband PIN Attenuators Variable attenuators based on the pi (p) configuration can be designed with frequency coverage spanning multiple octaves, from the high-frequency (HF) range to the lower microwave region. As a result, they are suitable for numerous wideband applications, such as in satellite television and cable-television (CATV) systems. The use of PIN diodes in these attenuators enables them to be realized as low-cost components and compact alternatives to ... February 2007 [Components] Tackle Wideband RF Switching With PIN Diodes Costly mechanical switches can be justified when used in precision test equipment, such as vector network analyzers. For mass-produced consumer products like cable- or satellite-television (CATV/SATV) delivery systems, however, less-expensive electronic switches are a better fit. These switches are based on either transistors or PIN diodes. The semiconductor switches have no moving parts. As a result, they provide faster response times and longer life spans than their... |
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