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Important questions
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EC8651 Transmission lines and radio frequency system (TLWRf)
Important questions
UNIT -1
1. Input Impedance of open and short circuit line**
2. Transmission line Eqn for voltage and current (general solution of transmission lines)
3. Probelms based on Propagation constant, phase constant, velocity of propagation, sending end and receiving end current, characteristic impedance, attnenuation constantUNIT-21.The reflection coefficient,
Reflection loss,
The standing wave ratio, **
2. Input impedance pattern for short circuited and open circuit3. VSWR of rf transmission
Don't share as screenshot UNIT-31.Smith chart **(app , significance)Based problems
*Position nd length of short circuit or open circuit match line
*Sending end impedance2.Rare(Quarter wave transformer)UNIT-41. Transmission of TE waves in parallel & z direction on rectangle** & circle
2, Wave behaviour in guiding structures(Transverse Electromagnetic Waves, Transverse Magnetic Waves)UNIT-51.bipolar junction transistors, RF field effect transistors**
2. **Mixers, Low noise amplifiers,VCO, Power amplifiers, 3.Transducer power gain and stabilityDon't share as screenshot -Stuff sector
**Very important questions are bolded and may be asked based on this topic
PART-C
1.Compulsory Questions {a case study where the student will have to read and analyse the subject }mostly asked from unit 2, 5(OR) a situation given and you have to answer on your own
EC8651 Transmission lines and radio frequency system (TLWRf)
Important questions
UNIT -1
1. Input Impedance of open and short circuit line**
2. Transmission line Eqn for voltage and current (general solution of transmission lines)
3. Probelms based on Propagation constant, phase constant, velocity of propagation, sending end and receiving end current, characteristic impedance, attnenuation constant
3. Probelms based on Propagation constant, phase constant, velocity of propagation, sending end and receiving end current, characteristic impedance, attnenuation constant
UNIT-2
1.The reflection coefficient,
Reflection loss,
The standing wave ratio, **
2. Input impedance pattern for short circuited and open circuit
Reflection loss,
The standing wave ratio, **
2. Input impedance pattern for short circuited and open circuit
3. VSWR of rf transmission
Don't share as screenshot
UNIT-3
1.Smith chart **(app , significance)
Based problems
*Position nd length of short circuit or open circuit match line
*Sending end impedance
*Position nd length of short circuit or open circuit match line
*Sending end impedance
2.Rare(Quarter wave transformer)
UNIT-4
1. Transmission of TE waves in parallel & z direction on rectangle** & circle
2, Wave behaviour in guiding structures(Transverse Electromagnetic Waves, Transverse Magnetic Waves)
2, Wave behaviour in guiding structures(Transverse Electromagnetic Waves, Transverse Magnetic Waves)
UNIT-5
1.bipolar junction transistors, RF field effect transistors**
2. **Mixers, Low noise amplifiers,VCO, Power amplifiers,
2. **Mixers, Low noise amplifiers,VCO, Power amplifiers,
3.Transducer power gain and stability
Don't share as screenshot -Stuff sector
**Very important questions are bolded and may be asked based on this topic
PART-C
1.Compulsory Questions {a case study where the student will have to read and analyse the subject }
mostly asked from unit 2, 5(OR) a situation given and you have to answer on your own
don't waste my hardwork and valuable time
As Engineer i think you know how to respect another
Share it as link alone . don't share it as screenshot or any text material if u found this anywhere kindly report me . #Admin WhatsAppContact uS for more updates
*These questions are expected for the exams This may or may not be asked for exams All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctorSYllabuSUNIT I TRANSMISSION LINE THEORY
General theory of Transmission lines – the transmission line – general solution – The infinite line -Wavelength, velocity of propagation – Waveform distortion – the distortion-less line – Loading and different methods of loading – Line not terminated in Z0 – Reflection coefficient – calculation of current, voltage, power delivered and efficiency of transmission – Input and transfer impedance –
Open and short circuited lines – reflection factor and reflection loss.
UNIT II HIGH FREQUENCY TRANSMISSION LINES
Transmission line equations at radio frequencies – Line of Zero dissipation – Voltage and current on the dissipation-less line, Standing Waves, Nodes, Standing Wave Ratio – Input impedance of the dissipation-less line – Open and short circuited lines – Power and impedance measurement on lines – Reflection losses – Measurement of VSWR and wavelength.
UNIT III IMPEDANCE MATCHING IN HIGH FREQUENCY LINES
Impedance matching: Quarter wave transformer – Impedance matching by stubs – Single stub and double stub matching – Smith chart – Solutions of problems using Smith chart – Single and double stub matching using Smith chart.
UNIT IV WAVEGUIDES
General Wave behavior along uniform guiding structures – Transverse Electromagnetic Waves, Transverse Magnetic Waves, Transverse Electric Waves – TM and TE Waves between parallel plates. Field Equations in rectangular waveguides, TM and TE waves in rectangular waveguides, Bessel Functions, TM and TE waves in Circular waveguides.
UNIT V RF SYSTEM DESIGN CONCEPTS
Active RF components: Semiconductor basics in RF, bipolar junction transistors, RF field effect transistors, High electron mobility transistors Basic concepts of RF design, Mixers, Low noise amplifiers, voltage control oscillators, Power amplifiers, transducer power gain and stability considerations.
Contact uS for more updates
*These questions are expected for the exams This may or may not be asked for exams
All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements
If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctorGeneral theory of Transmission lines – the transmission line – general solution – The infinite line -Wavelength, velocity of propagation – Waveform distortion – the distortion-less line – Loading and different methods of loading – Line not terminated in Z0 – Reflection coefficient – calculation of current, voltage, power delivered and efficiency of transmission – Input and transfer impedance –
Open and short circuited lines – reflection factor and reflection loss.
UNIT II HIGH FREQUENCY TRANSMISSION LINES
Transmission line equations at radio frequencies – Line of Zero dissipation – Voltage and current on the dissipation-less line, Standing Waves, Nodes, Standing Wave Ratio – Input impedance of the dissipation-less line – Open and short circuited lines – Power and impedance measurement on lines – Reflection losses – Measurement of VSWR and wavelength.
UNIT III IMPEDANCE MATCHING IN HIGH FREQUENCY LINES
Impedance matching: Quarter wave transformer – Impedance matching by stubs – Single stub and double stub matching – Smith chart – Solutions of problems using Smith chart – Single and double stub matching using Smith chart.
UNIT IV WAVEGUIDES
General Wave behavior along uniform guiding structures – Transverse Electromagnetic Waves, Transverse Magnetic Waves, Transverse Electric Waves – TM and TE Waves between parallel plates. Field Equations in rectangular waveguides, TM and TE waves in rectangular waveguides, Bessel Functions, TM and TE waves in Circular waveguides.
UNIT V RF SYSTEM DESIGN CONCEPTS
Active RF components: Semiconductor basics in RF, bipolar junction transistors, RF field effect transistors, High electron mobility transistors Basic concepts of RF design, Mixers, Low noise amplifiers, voltage control oscillators, Power amplifiers, transducer power gain and stability considerations.