Scribd
Upload
134 views1 page

EE 614 Solid State Microwave Devices and Applications: Assignment-2

This document outlines 7 problems related to solid state microwave devices and applications for an assignment. The problems involve: 1) Finding the voltage across a load resistor using ABCD parameters 2) Designing an unequal power divider 3) Designing a directional coupler with specified coupling 4) Designing a hybrid coupler with unequal power division and writing S-parameters for a circuit 5) Calculating output powers for a hybrid coupler circuit 6) Finding S-parameters of a rat race coupler 7) Calculating output powers for a 4-port circuit. Students are to submit their solutions by a specified due date for a total of 20 marks.

Uploaded by

ajay meena
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
134 views1 page

EE 614 Solid State Microwave Devices and Applications: Assignment-2

This document outlines 7 problems related to solid state microwave devices and applications for an assignment. The problems involve: 1) Finding the voltage across a load resistor using ABCD parameters 2) Designing an unequal power divider 3) Designing a directional coupler with specified coupling 4) Designing a hybrid coupler with unequal power division and writing S-parameters for a circuit 5) Calculating output powers for a hybrid coupler circuit 6) Finding S-parameters of a rat race coupler 7) Calculating output powers for a 4-port circuit. Students are to submit their solutions by a specified due date for a total of 20 marks.

Uploaded by

ajay meena
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

EE 614 Solid State Microwave Devices and Applications

Assignment-2
To be submitted on or before February 8, 2018 Total Marks: 20

1. For the circuit shown in Fig.1, find the voltage VL across the load resistor using ABCD parameters. (3)

Fig. 1
2. Design a 2-way unequal quarter wave power divider on substrate having r =2.2 and h =0.8 mm at 1800 MHz
such that powers at output ports are 1/5 and 4/5 of input power. Assume Z o = 50 Ω. (3)
3. A coupled line directional coupler is designed at 900 MHz for coupling of 30 dB. If the coupler is to be made
using microstrip lines with substrate r = 9.6 and h = 0.8 mm, find the necessary line widths and separation
(assume I/O impedance = 50 Ω). (2)
4. (a) Design a 2-branch hybrid coupler for unequal power division of 1/8 and 7/8 at the two output ports assuming
port1 as input port?
(b) For the circuit shown in Fig.2, if power is fed using port 2, write all the s-parameters for this case. (4)

Fig.2
5. For the circuit shown in Fig. 3, the hybrid coupler is a 3dB 2 branch line coupler. What will be the output power
at Ports 2 and 3 if port 1 is fed with an input power of 10W. Assume Zo = 50 Ω. (3)

Fig.3
6. Find S-parameters of rat race coupler using even and odd mode ABCD parameters. (2)
7. For the circuit shown below, all the input and output ports are matched with 50 Ω and have line length of λ. If
Ports 1 and 2 are fed with power 10 W, what will be the output power at all the other ports? (3)

Fig.4

You might also like