BPF 16 2 29 4414
LP F (Low P ass F ilter) HPF(High P ass F ilter) BPF(Band P ass F ilter) ( ) BPF BPF BPF 2 Q BPF 1 BPF BPF BPF 1 8 1 BPF BPF BPF -3[dB] 5[MHz] BPF -3[dB].8[MHz] BPF i
1 1 2 BPF 4 2.1........................... 4 2.2 BPF........................ 7 2.2.1 BPF......................... 7 2.2.2 BPF................. 9 2.2.3 BPF......................... 1 3 BPF 14 3.1 BPF........................ 14 3.1.1.............................. 14 3.1.2 BPF........................... 16 3.2 BPF........................ 18 3.2.1 BPF................ 18 3.2.2.................... 2 3.2.3 BPF........................... 23 3.3 BPF........................ 25 3.3.1..................... 25 3.3.2 BPF....................... 31 4 32 33 34 ii
1 LP F (Low P ass F ilter) HPF(High P ass F ilter) BPF(Band P ass F ilter) ( ) BPF BPF BPF 2 Q 1.1 C BPF 1
1.3 1.3 BPF g/4 1.1 : R L1 C1 C2 L2 R 1.2 : 2
1.3 : 2 BPF BPF BPF BPF 3 2 BPF 4 3
2 BPF BPF BPF BPF 2.1 BPF BPF BPF 2.1 R1 Qe1 k12 ki,i+1 kn-1,n D1 D2 Di Di+1 Dn-1 Dn 2.1 : n BPF Qe2 Rn 4
Zc D i [i =1, ] R 1 R n 2.1 D i [i =1, ] BPF 2.2 2.4 ( 2.5) D1 D2 D3 (a) (b) 2.2 : B1 B2 B3 2.3 : 2.2 5
(a) (b) 2.4 : 2.5 : 2.3 Z C B 1 B 2 B i i =1, 2, 2.4 2.3 B 2 = D 1 2.6 2.6 B 1 Ls Cs Zc B1 D1 2.6 : B 2 = D 1 6
2.2 BPF 2.2.1 BPF Ls Cs Zc Cp Lp 2.7 : 2.6 LC 2.6 LC BPF 2.7 2.7 LC ( 2.8) R L1 C1 L3 C3 C2 L2 RL 2.8 : BPF 7
-3-6 -9 1 2 3 4 5 s21 s21 shifted 2.9 : 2.8 BPF 2.9 2.8 BPF 8
2.2.2 BPF 2.1 BPF 1 2.5 BPF BPF BPF 1 8 BPF( 2.11(a)) BPF( 2.11(b)) 1 BPF 2.1 : BPF 1 (a) BPF( ) (b) BPF( ) 2.11 : BPF BPF 9
2.2.3 BPF BPF 2.12 BPF 2.2.1 2.12 : BPF 2.13 BPF BPF 1
-1-2 -3-4 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 2.13 : BPF -1-2 -3-4 18 2 22 24 default downsized 2.14 : BPF ( ) 11
2.14 2[MHz] 2.15 4[MHz] ( 2.16) 2.15 : -1-2 -3-4 18 2 22 24 default downsized 2.16 : BPF 12
-1-2 -3-4 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 2.17 : BPF 2.16 BPF 45 135 2.17 21[MHz] 38[MHz] -3[dB] 5[MHz] BPF 13
3 BPF BPF BPF 3.1 BPF 3.1.1 BPF BPF 2 3.1 4[mm] 3.2 5[mm] 4[mm] BPF 14
-1-2 y=1 y=3 y=5 y -3 18 2 22 24 unit : mm 3.1 : -1-2 4 y -3 18 2 22 24 y=1 y=3 y=5 unit : mm 3.2 : 15
3.1.2 BPF BPF BPF ( 3.3) 3.4 BPF 3.5 1 BPF 3.6 3.3 : -1-2 -3-4 18 2 22 24 3.4 : 16
-1-2 -3 18 2 22 24 degree 1degree 2degree 3.5 : -1-2 -3-4 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 3.6 : BPF 17
3.2 BPF 3.2.1 BPF BPF ( 3.7) BPF ( ) 3.8 3.9 3.9 3.1-3 -6-9 -12-15 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 3.7 : BPF 18
3.8 : -1-2 -3-4 18 2 22 24 3.9 : BPF d d= 6 d= 11 d= 16 d= 21 unit : mm 19
-1-2 -3-4 18 2 22 24 d d= d= 17 unit : mm 3.1 : BPF 3.2.2 BPF 3.11 3.12 2
-1-2 4 y -3 18 2 22 24 y=5 y=3 y=1 unit : mm 3.11 : -1-2 x 5-3 18 2 22 24 x=4 x=3 x=2 unit : mm 3.12 : 21
3.13 : -2-4 -6 18 2 22 24 degree 1 degree 2 degree 3.14 : 22
3.2.3 BPF 3.2.1 BPF 1 3.15 1[mm] 3.16 BPF 3.17 BPF 21[MHz] 37[MHz].8[MHz] -1-2 -3-4 18 2 22 24 Frequency [MHz ] default wing1 degree 3.15 : 23
-1-2 -3 4 y -4 18 2 22 24 unit : mm y=5 y=1 3.16 : -1-2 -3-4 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 3.17 : BPF 24
3.3 BPF 3.3.1 BPF BPF 5[mm] 4[mm] 3.18 BPF -3-6 -9-12 -15 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated 135degree 3.18 : BPF 3.19 3.2 3.22 3.23 BPF -7[mm] BPF 25
BPF -2-4 4 y -6 18 2 22 24 y=5 y=3 y=1 unit : mm 3.19 : -25-5 -75-1 18 2 22 24 x x=4 x=3 x=2 unit : mm 5 3.2 : 26
3.21 : -1-2 -3 18 2 22 24 d : d= 5 d= 11 d= 15 unit : mm 3.22 : BPF 27
-2-4 -6 18 2 22 24 d= d= 7 3.23 : BPF BPF 3.24 BPF 3.25 1 2 28
-2-4 -6 18 2 22 24 degree 1 degree 2 degree 3.24 : -2-4 -6 18 2 22 24 degree 2stage 1 degree 3stage 2 degree 3.25 : 29
BPF -2-4 -6 18 2 22 24 default optimized 3.26 : BPF 3
3.3.2 BPF BPF BPF N (N 2) BPF N-2 (2MHz ) N BPF ( N ) BPF 5[mm] 4[mm] N-1 3.1 3.1 : ( ) ( ) 31
4 BPF BPF BPF BPF BPF BPF BPF BPF 32
D3 33
[1],,, 1996 [2], - - 3,, 21. [3], BPF,, 22. [4],,, 21. [5],,, 1996. [6],,, 1992. [7],,,, Vol.J78-C-1, pp.384-386, August. 1995. [8],,,, Vol.J79-C-1, pp.145-147, May. 1996. [9],,, FDTD,, Vol.J84-C, pp.332-334, April. 21. [1] LEO YOUNG, Microwave Filters-1965 IEEE Trans. Microwave Theory Tech., Vol.MTT-13, No5, pp.489-58, 1965-9 [11],, FDTD,, Vol.J86- C, pp.139-146, February. 23. [12],,,,, Vol.99, pp.97-12, 1999. 34