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1 BPF

2 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 BPF BPF BPF -3[dB] 5[MHz] BPF -3[dB].8[MHz] BPF i

3 1 1 2 BPF BPF BPF BPF BPF BPF BPF BPF BPF BPF BPF BPF BPF ii

4 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

5 BPF g/4 1.1 : R L1 C1 C2 L2 R 1.2 : 2

6 1.3 : 2 BPF BPF BPF BPF 3 2 BPF 4 3

7 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

8 Zc D i [i =1, ] R 1 R n 2.1 D i [i =1, ] BPF ( 2.5) D1 D2 D3 (a) (b) 2.2 : B1 B2 B3 2.3 : 2.2 5

9 (a) (b) 2.4 : 2.5 : 2.3 Z C B 1 B 2 B i i =1, 2, B 2 = D B 1 Ls Cs Zc B1 D1 2.6 : B 2 = D 1 6

10 2.2 BPF BPF Ls Cs Zc Cp Lp 2.7 : 2.6 LC 2.6 LC BPF LC ( 2.8) R L1 C1 L3 C3 C2 L2 RL 2.8 : BPF 7

11 s21 s21 shifted 2.9 : 2.8 BPF BPF 8

12 2.2.2 BPF 2.1 BPF 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

13 2.2.3 BPF BPF 2.12 BPF : BPF 2.13 BPF BPF 1

-1-2 -3-4 1 2 3 4 rotated degree rotated 45degree rotated 9degree rotated

14 rotated degree rotated 45degree rotated 9degree rotated 135degree 2.13 : BPF default downsized 2.14 : BPF ( ) 11

15 2.14 2[MHz] [MHz] ( 2.16) 2.15 : default downsized 2.16 : BPF 12

16 rotated degree rotated 45degree rotated 9degree rotated 135degree 2.17 : BPF 2.16 BPF [MHz] 38[MHz] -3[dB] 5[MHz] BPF 13

17 3 BPF BPF BPF 3.1 BPF BPF BPF [mm] 3.2 5[mm] 4[mm] BPF 14

18 -1-2 y=1 y=3 y=5 y unit : mm 3.1 : y y=1 y=3 y=5 unit : mm 3.2 : 15

19 3.1.2 BPF BPF BPF ( 3.3) 3.4 BPF BPF : : 16

-1-2 -3 18 2 22 24 degree 1degree 2degree 3.

20 degree 1degree 2degree 3.5 : rotated degree rotated 45degree rotated 9degree rotated 135degree 3.6 : BPF 17

21 3.2 BPF BPF BPF ( 3.7) BPF ( ) rotated degree rotated 45degree rotated 9degree rotated 135degree 3.7 : BPF 18

22 3.8 : : BPF d d= 6 d= 11 d= 16 d= 21 unit : mm 19

23 d d= d= 17 unit : mm 3.1 : BPF BPF

24 y y=5 y=3 y=1 unit : mm 3.11 : -1-2 x x=4 x=3 x=2 unit : mm 3.12 : 21

25 3.13 : 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].

26 3.2.3 BPF BPF [mm] 3.16 BPF 3.17 BPF 21[MHz] 37[MHz].8[MHz] Frequency [MHz ] default wing1 degree 3.15 : 23

27 y unit : mm y=5 y= : rotated degree rotated 45degree rotated 9degree rotated 135degree 3.17 : BPF 24

28 3.3 BPF BPF BPF 5[mm] 4[mm] 3.18 BPF rotated degree rotated 45degree rotated 9degree rotated 135degree 3.18 : BPF BPF -7[mm] BPF 25

29 BPF y y=5 y=3 y=1 unit : mm 3.19 : x x=4 x=3 x=2 unit : mm : 26

30 3.21 : d : d= 5 d= 11 d= 15 unit : mm 3.22 : BPF 27

31 d= d= : BPF BPF 3.24 BPF

-2-4 -6 18 2 22 24 degree 1 degree 2 degree 3.

32 degree 1 degree 2 degree 3.24 : degree 2stage 1 degree 3stage 2 degree 3.25 : 29

33 BPF default optimized 3.26 : BPF 3

34 3.3.2 BPF BPF BPF N (N 2) BPF N-2 (2MHz ) N BPF ( N ) BPF 5[mm] 4[mm] N : ( ) ( ) 31

35 4 BPF BPF BPF BPF BPF BPF BPF BPF 32

36 D3 33

37 [1],,, 1996 [2], - - 3,, 21. [3], BPF,, 22. [4],,, 21. [5],,, [6],,, [7],,,, Vol.J78-C-1, pp , August [8],,,, Vol.J79-C-1, pp , May [9],,, FDTD,, Vol.J84-C, pp , April. 21. [1] LEO YOUNG, Microwave Filters-1965 IEEE Trans. Microwave Theory Tech., Vol.MTT-13, No5, pp , [11],, FDTD,, Vol.J86- C, pp , February. 23. [12],,,,, Vol.99, pp.97-12,