| Summary: | 碩士 === 亞洲大學 === 資訊工程學系碩士班 === 95 === In the past, all the functional blocks have been built directly on the main circuit board on
traditional CATV amplifier. This fixed configuration causes some problems such as: not flexible
for different band split country, not flexible for different band- width country, not flexible for
signals adjustments!! The fixed configuration amp leads the headache to manufacturer and
sales agent and so is the user!!
For manufacturer, the fixed configuration amplifiers are made for certain customers requested
the similar specs. The market size is limited! To meet It is very severe to both R&D load and
logistics load, such as inventory management, materials preparation, lead time. At last the
manufacturing cost and overhead can’t be effectively reduced!!
For CATV system operator, the fixed configuration amplifier is difficult to use, high inventory
cost, difficult to upgrade and lack the feature of future proof!!
In order to improve the transmission distance of signals, to reduce operator’s cost,ａhigh gain
and high-quality products is the trend of market now .
Not limited to traditional TV program broadcasting, operators are doing the multiple value added
service, such as internet service, multimedia, interactive TV, VOD and telephony. These services
lead to data traffic congestion, then the strong need of wider bandwidth!!
So, a high gain, ripple minimum, low VSWR, modularized CATV trunk amplifier has been my
study target!!
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