Проектирование полосковых устройств СВЧ. - 73 стр.

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67
Таблица 4.2
Коэффициенты
g
i
для фильтров с чебышевской характеристикой
Вносимое затухание
Аn=0,2
дБ
n g
1
(=g
n
)
g
2
(=g
n-1
)
g
3
(=g
n-2
)
g
4
(=g
n-3
)
g
5
(=g
n-4
)
1 0,4342 --- --- --- ---
3 1,2275 1,1525 1,2275 --- ---
5 1,3394 1,3370 2,1660 --- ---
7 1,3722 1,3781 2,2756 1,5001 ---
9 1,3860 1,3938 2,3093 1,5340 2,3728
Вносимое затухание
Аn=0,5
дБ
n g
1
(=g
n
)
g
2
(=g
n-1
)
g
3
(=g
n-2
)
g
4
(=g
n-3
)
g
5
(=g
n-4
)
g
6
(=g
n-5
)
1 0,6986 --- --- --- --- ---
3 0,5963 1,0967 --- --- --- ---
5 1,7058 1,2296 2,5408 --- --- ---
7 1,7373 1,2582 2,6383 1,3443 --- ---
9 1,7504 1,2690 2,6678 1,3673 2,7239 ---
11 1,7526 1,2772 2,6736 1,3794 2,7285 1,3915
Вносимое затухание
Аn=1,0
дБ
n g
1
(=g
n
)
g
2
(=g
n-1
)
g
3
(=g
n-2
)
g
4
(=g
n-3
)
g
5
(=g
n-4
)
g
6
(=g
n-5
)
1 1,0177 --- --- --- --- ---
3 2,0236 0,9941 --- --- --- ---
5 2,1349 1,0911 3,0009 --- --- ---
7 2,1666 1,1115 3,0936 1,1735 --- ---
9 2,1797 1,1192 3,12 1,1897 3,1746 ---
11 2,1898 1,1202 3,1424 1,1925 3,2063 1,2010
Вносимое затухание
Аn=2,0
дБ
n g
1
(=g
n
)
g
2
(=g
n-1
)
g
3
(=g
n-2
)
g
4
(=g
n-3
)
g
5
(=g
n-4
)
g
6
(=g
n-5
)
1 1,5296 --- --- --- --- ---
3 2,7107 0,8327 --- --- --- ---
5 2,8310 0,8985 3,7827 --- --- ---
7 2,8650 0,9120 3,8774 0,9537 --- ---
9 2,8790 0,9171 3,9056 0,9643 3,9597 ---
11 2,8817 0,9207 3,9130 0,7357 5,2415 0,7399
Вносимое затухание
Аn=3,0
дБ
n g
1
(=g
n
)
g
2
(=g
n-1
)
g
3
(=g
n-2
)
g
4
(=g
n-3
)
g
5
(=g
n-4
)
g
6
(=g
n-5
)
1 1,9953 --- --- --- --- ---
3 3,3487 0,7117 --- --- --- ---
5 3,4813 0,7619 4,5375 --- --- ---
7 3,5185 0,7722 4,6390 0,8038 --- ---
9 3,5339 0,7760 4,6691 0,8118 4,7270 ---
11 3,5448 0,7774 4,6860 0,8142 0,7556 0,8540

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