trisection filter hairpin design
时间：04-07
整理：3721RD
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hi...
i want to simulate the following microstrip bandpass filter given in microstrip filter for rf applcations by lancaster.so ,, how to calculate the physical dimensions of the filter..? i want to design a filter at 1525.42Mhz - 1625.42 Mhz..
http://images.elektroda.net/0_1269158597.jpg
The hairpin filter is another structure that uses parallel-coupled lines. In this case, each pair of parallel-coupled lines is connected to the next pair by a short link. The "U" shapes so formed give rise to the name hairpin filter.
i want to simulate the following microstrip bandpass filter given in microstrip filter for rf applcations by lancaster.so ,, how to calculate the physical dimensions of the filter..? i want to design a filter at 1525.42Mhz - 1625.42 Mhz..
http://images.elektroda.net/0_1269158597.jpg
In HFSS, you can set variables to opt the performance.
tony...but I don't know the formula to find the physical dimensions of the trisection that one..
Parallel-coupled lines is popular topology for printed boards, for which open-circuit lines are the simplest to implement since the manufacturing consists of nothing more than the printed track. The design consists of a row of parallel λ/2 resonators, but coupling over only λ/4 to each of the neighbouring resonators, so forming a staggered line as shown below.
The hairpin filter is another structure that uses parallel-coupled lines. In this case, each pair of parallel-coupled lines is connected to the next pair by a short link. The "U" shapes so formed give rise to the name hairpin filter.
