Exam Details
| Subject | Rf Circuits | |
| Paper | ||
| Exam / Course | Diploma In Electronics And Communication Engineering (DECVI)/ Advanced Level Certificate Course In Electronics And Communication Engineering (ACEVI)/ | |
| Department | School of Engineering & Technology (SOET) | |
| Organization | indira gandhi national open university | |
| Position | ||
| Exam Date | December, 2015 | |
| City, State | new delhi, |
Question Paper
Draw the equivalent circuits of transmission lines.
Derive the input impedance equation of a transmission line of length
"Derive an expression for the 'Noise Figure' of cascaded networks.
Explain the characteristics of passive IC components at RF frequencies.
3. Show that the ideal Class A amplifier has an efficiency of 50% and the ideal Class B amplifier has an efficiency of n/4 or 78·5%.
The parameters of a transmission line are R ohm/m, G =0.5 L nH/m and C 0.23 pf/m. If the signal frequency is 1 GHz, calculate its characteristic impendence and the propagation constant
A signal propagating through a 50 ohm distortionless transmission line attenuates at a rate of 0.01 dB per metre. If this line has a capacitance of 100 PF per metre, find and vp.
Derive the expression for a two-port network to be unconditionally stable.
Explain two-port stability criterion.
Explain different types of RF power amplifiers. Briefly explain each with its application point of view.
Explain the linearity consideration of RF power amplifiers.
What is noise? Describe the noise models for active and passive components.
Explain the operation of diode-ring mixers.
Explain the basic building blocks design of a Low noise amplifier. Write the LNA topologies.
What is the difference between neutralization and unilateralization of high frequency amplifier design?
Discuss about multiplier-based mixers and subsampling mixers.
Explain the operation principle of an RF oscillator by drawing its suitable diagram.
What is negative resistance oscillator Explain its principle.
10.Write short notes on any two of the following:
Synthesizer
Shunt-Series Amplifier
S-parameters
Derive the input impedance equation of a transmission line of length
"Derive an expression for the 'Noise Figure' of cascaded networks.
Explain the characteristics of passive IC components at RF frequencies.
3. Show that the ideal Class A amplifier has an efficiency of 50% and the ideal Class B amplifier has an efficiency of n/4 or 78·5%.
The parameters of a transmission line are R ohm/m, G =0.5 L nH/m and C 0.23 pf/m. If the signal frequency is 1 GHz, calculate its characteristic impendence and the propagation constant
A signal propagating through a 50 ohm distortionless transmission line attenuates at a rate of 0.01 dB per metre. If this line has a capacitance of 100 PF per metre, find and vp.
Derive the expression for a two-port network to be unconditionally stable.
Explain two-port stability criterion.
Explain different types of RF power amplifiers. Briefly explain each with its application point of view.
Explain the linearity consideration of RF power amplifiers.
What is noise? Describe the noise models for active and passive components.
Explain the operation of diode-ring mixers.
Explain the basic building blocks design of a Low noise amplifier. Write the LNA topologies.
What is the difference between neutralization and unilateralization of high frequency amplifier design?
Discuss about multiplier-based mixers and subsampling mixers.
Explain the operation principle of an RF oscillator by drawing its suitable diagram.
What is negative resistance oscillator Explain its principle.
10.Write short notes on any two of the following:
Synthesizer
Shunt-Series Amplifier
S-parameters
Other Question Papers
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Subjects
- Advance Microprocessor And Architecture
- Analog And Mixed Mode Vlsi Design
- Analog Communication
- Analog Electronic Circuits
- Analog Integrated Circuits Design
- Antennas And Propagation
- Applied Electronics
- Audio and Video Engineering
- Basic Telematics
- Basics Of Electronics Engineering
- Bio Informatics
- Circuits and Networks
- Computer Architecture
- Computer Communication Networks
- Control Engineering
- Data Communication And Network
- Data Structures
- Device Modelling For Circuit Simulation
- Digital Communication
- Digital Electronics
- Digital Signal Processing
- Digital System Design
- Dip- ECE PCB Design & Testing
- Electromagnetic Field Theory
- Electronic Measurement And Instrumentations
- Electronic Measurement and Instruments
- Electronic Product Design
- Electronic Switching Circuits
- Embedded System Design
- Industrial Electronics
- Information Theory And Coding
- Linear Integrated Circuits
- Maintenance Of Electronic Equipment
- Micro Controller
- Micro Controllers
- Microelectronics Technology
- Microprocessor
- Microprocessor And Its Applications
- Microwave And Radar Engineering
- Modeling And Testing Of Digital Systems
- Multirate Systems
- Nano - Electronics
- Optical Fiber Communication
- Opto Electronics Communication Systems
- Power Electronics
- Principles of Communication Engineering
- Quantum Communication
- Rf Circuits
- Satellite And Tv Engineering
- Signal Compression
- Signals And Systems
- Technical English
- Television Engineering
- Wireless Communication