SRM University 2007 B.Tech Electronics and Communications Engineering BANK EC207 NETWORK ANALYSIS AND SYNTHESIS - Question Paper

11. Give the agnation for inverse transmission matrix.
12. Why h-parameters are called as by brick parameters.
13. For a provided x11 =3x; 312 = 1?, Z21 = 2?, Z22 = 1?, obtain admittance matrix and product of AY and AZ.
14. Give the expression of h-parameters in terms of Z-parameters
15. Give the expression of ABCD parameters in terms of Y-parameters.
16. What will be the output of a series connected two port network.
17. In the Lattice network when Zd =0 then the network becomes _____________--
18. When a network will be symmetric in case of lattice network.
19. Give the expression for Z-parameters in case of Lattice network.
20. Draw a parallely connected 2 port network.

PART - B

1. Find the Y parameters for the netn.

2. Prove that the ‘g’-parameter are the inverse of h-parameters.

3. Find the h-parameters of the network shown

4. Derive the expression for Z-parameters interms of Y-parameters.
5. Dervie the expression for transmission parameters in terms of Z-parameters.
6. Explain in detail about methods of connection of 2 port network and what do you infer from that.
7. Derive the expression for Z-parameters in case of lattice network.
8. For the hybrid equivalent ckt shown
a. determine current gain
b. determine voltage gain

9. Find the current transfer ratio I2/I1 for network shown.

10. The hybrid parameters of a two port network are h11 = 1k; h12 = 0.003; h21=100; h22 = 50. obtain r2 and Z parameters of network.

UNIT – IV
PART - A
1. What is a filter
2. What are the classification of filters
3. Define a neper
4. Define decibel.
5. Define band pass filter and band elimination filter.
6. Define lowpass and high pass filters
7. Draw the ladder structure of the filter network.
8. Give the formula for characteristic impedence of symmentrical T-Section.
9. Define propagation constant
10. Give the formula for propagation constant of (a) T-network (b) T1 – network.
11. Give the classification of pass band and stop band.
12. Give the characteristic impedence in the pass and stop band.
13. What is a prototype filter.
14. Give the entle-off frequency of a prototype filter.
15. Design a low pass filter (both ? and T) have a cut off frequency of 2KHZ to operate with terminated load resistance of 500r.
16. Give the plot for characteristic impedence with respect to frequency in case of constant K high pass filter.
17. Give the cut –off frequency of m-derived
a. Low pass filter b. High pass filter
18. Give the cut off frequency of (a) BPF (b) BEF
19. What is a attenuator and provide its kinds.
20. Give the design formula for (a) T-type attenuator (b) ? -type attenuators (c) Bridged T-attenuator.
21. Design a symmentrical bridge T-attenuate with an attenuation of 20dB and terminated into a load of 500m.
22. What are the uses of attenuators.
PART - B
1. Derive the expression for propagation constant, characteristic impedence (Z0) of T-network and ? network.
2. Derive the expression for cut-off frequency ?, ? of the constant k low pass and high pass filter.
3. Derive the expression for resonant frequency, ?, ? for m-derived low pass and high pass filter.
4. Derive the expression for cut off frequency L1, C1, L2, C2 for BPF and BEF.
5. Obtain an expression for R1 and R2 of T kind and ? - kind altenuator terminated with characteristic impedence R0.
6. Derive the expression for R0, R1 & R2.for lattice and L-type alternuator.

UNIT – V
PART - A
1. What is a Hurwitz polynomial.
2. Give any two condition for a function to be positive real.
3. Give any two conditions for a polynomial to be Hutwitz.
4. Give the steps for the synthesis of reactive 1 port by josters method.
5. The driving point impedence of an LC netowkr is gn by
determine the 1st cover form of network.
6. What are the properties of impedence function.
7. What are the properties of admittance function.
8. In the 1st foster form, the presence of 1st element capacitor co shows.
9. What does a pole at infinity indicate
10. Test whether the polynomial P(S) = S3+4S2+5S+2 is Hurwitz.

PART –B
1. Find 2 foster realization of

2. Find the 2 cover realization of driving point function provided by

3. Find the 1st caver form of function

4. Find the 1st and 2nd foster forms the function

5. Find the 1st and 2nd caver network of the provided function.

Earning:   Approval pending.