Microwave ElectroMagnetic Interference Soluntions Design of High & Band Pass Filter Gold. D. 건.

Presentation on theme: "Microwave ElectroMagnetic Interference Soluntions Design of High & Band Pass Filter Gold. D. 건."— Presentation transcript:

1 Microwave ElectroMagnetic Interference Soluntions Design of High & Band Pass Filter Gold. D. 건

2 Microwave ElectroMagnetic Interference Solutions Chebyshev Filter

3 Microwave ElectroMagnetic Interference Solutions Chebyshev Filter

4 Microwave ElectroMagnetic Interference Solutions 예제 5.2 (Microwave and RF Wireless Systems – David M. Pozar) 차단 주파수 2GHz, 임피던스 50Ω, 3GHz 에서 최소한 15dB 의 감쇠 ( 삽입손실 ) 를 가지는 butterworth 저역통과 필터를 설계하라. f=0 에서 4GHz 까지 여파기 진폭응답과 군지연을 계산하 여 도시하고, 이들 결과를 동일 차수의 chebyshev 필터 (3.0dB 리플 ) 와 선형위상 여파기의 결과를 비교해 보라. Example(Previous)

5 Microwave ElectroMagnetic Interference Solutions 차수 = 4.219529618 ∴ 차수 =5 Example(Previous)

6 Microwave ElectroMagnetic Interference Solutions 스케일링 값 (T 형 ) 스케일링 값 (π 형 ). High Pass Filter

7 Microwave ElectroMagnetic Interference Solutions k1=0.618; k2=1.618; k3=2.000; k4=1.618; k5=0.618; fc1= (1/(r0*wc*k1)) fc2= (r0/(wc*k2)) fc3= (1/(r0*wc*k3)) fc4= (r0/(wc*k4)) fc5= (1/(r0*wc*k5)) fl1= (r0/(wc*k1)) fl2= (1/(r0*wc*k2)) fl3= (r0/(wc*k3)) fl4= (1/(r0*wc*k4)) fl5= (r0/(wc*k5)) High Pass Filter

8 Microwave ElectroMagnetic Interference Solutions 음의 부호 C 나 L 은 구현 가능한 인덕터 및 캐패시터로 변환되도록 이용 된다. High Pass Filter ( 주파수 치환 )

9 Microwave ElectroMagnetic Interference Solutions High Pass Filter ( T – type )

10 Microwave ElectroMagnetic Interference Solutions High Pass Filter ( T – type )

11 Microwave ElectroMagnetic Interference Solutions High Pass Filter ( π– type )

12 Microwave ElectroMagnetic Interference Solutions High Pass Filter ( π– type )

13 Microwave ElectroMagnetic Interference Solutions Band Pass Filter 주파수 치환 ( 식.1)

14 Microwave ElectroMagnetic Interference Solutions Band Pass Filter

15 Microwave ElectroMagnetic Interference Solutions Band Pass Filter

16 Microwave ElectroMagnetic Interference Solutions Band Pass Filter & Band Stop Filter 소자 값 Band Pass 역 변환시

17 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω Example 0.5dB 이퀄 리플 응답을 갖는, N=3 인 대역통과 필터를 설계하라. 중심주파수는 1GHz, 대역폭은 10%, 임피던스는 50Ω 이 다. 0

18 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

19 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

20 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

21 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

22 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

23 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

24 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

25 Microwave ElectroMagnetic Interference Solutions Band Stop Filter

26 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

27 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

28 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

29 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

30 Microwave ElectroMagnetic Interference Solutions ripple 0.5dB, N=3, ω =1GHz, BW=10%, 50Ω 0

31 Microwave ElectroMagnetic Interference Solutions

32 Filter Proto-type

33 Microwave ElectroMagnetic Interference Solutions summary

34 5 차, 0.1dB, 중심주파수 3GHz, 비대역폭 8%, 임피던스 50Ω 차단 주파수 5GHz, 8GHz 에서 최소한 20dB, 임피던스 50 Ω 검증

35 Microwave ElectroMagnetic Interference Solutions

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38 T 형 BPF

39 Microwave ElectroMagnetic Interference Solutions T 형 BPF

40 Microwave ElectroMagnetic Interference Solutions T 형 BPF