This document contains an exam for a course on electromagnetic waves and transmission lines. It includes 8 questions covering various topics:
1. Coulomb's law, electric field calculations for point charges.
2. Ampere's circuital law, magnetic field calculations for conducting rods and coils.
3. Plane wave propagation in dielectric media, displacement current density.
4. Brewster's angle and refraction/reflection at dielectric interfaces.
5. Poynting vector, power calculations for waves incident on dielectric boundaries.
6. Parallel plate waveguide properties such as cutoff frequency.
7. Transmission line characteristics impedance and reflection coefficients.
8. Equivalent circuits for transmission lines of various
Electronic bands structure and gap in mid-infrared detector InAs/GaSb type II...IJERA Editor
We present here theoretical study of the electronic bands structure E (d1) of InAs (d1=25 Å)/GaSb (d2=25 Å) type
II superlattice at 4.2 K performed in the envelope function formalism. We study the effect of d1 and the offset ,
between heavy holes bands edges of InAs and GaSb, on the band gap Eg (), at the center of the first Brillouin
zone, and the semiconductor-to-semimetal transition. Eg (, T) decreases from 288.7 meV at 4.2 K to 230 meV
at 300K. In the investigated temperature range, the cut-off wavelength 4.3 m ≤ c ≤ 5.4 m situates this sample
as mid-wavelength infrared detector (MWIR). Our results are in good agreement with the experimental data
realized by C. Cervera et al.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Investigation of Steady-State Carrier Distribution in CNT Porins in Neuronal ...Kyle Poe
In this work, the carrier distribution of a carbon nanotube inserted into the spinal ganglion neuronal membrane is examined. After primary characterization based on previous work, the nanotube is approximated as a one-dimensional system, and the Poisson and Schrödinger equations are solved using an iterative finite-difference scheme. It was found that carriers aggregate near the center of the tube, with a negative carrier density of ⟨ρn⟩ = 7.89 × 10^13 cm−3 and positive carrier density of ⟨ρp⟩ = 3.85 × 10^13 cm−3. In future work, the erratic behavior of convergence will be investigated.
Electronic bands structure and gap in mid-infrared detector InAs/GaSb type II...IJERA Editor
We present here theoretical study of the electronic bands structure E (d1) of InAs (d1=25 Å)/GaSb (d2=25 Å) type
II superlattice at 4.2 K performed in the envelope function formalism. We study the effect of d1 and the offset ,
between heavy holes bands edges of InAs and GaSb, on the band gap Eg (), at the center of the first Brillouin
zone, and the semiconductor-to-semimetal transition. Eg (, T) decreases from 288.7 meV at 4.2 K to 230 meV
at 300K. In the investigated temperature range, the cut-off wavelength 4.3 m ≤ c ≤ 5.4 m situates this sample
as mid-wavelength infrared detector (MWIR). Our results are in good agreement with the experimental data
realized by C. Cervera et al.
IJERA (International journal of Engineering Research and Applications) is International online, ... peer reviewed journal. For more detail or submit your article, please visit www.ijera.com
Investigation of Steady-State Carrier Distribution in CNT Porins in Neuronal ...Kyle Poe
In this work, the carrier distribution of a carbon nanotube inserted into the spinal ganglion neuronal membrane is examined. After primary characterization based on previous work, the nanotube is approximated as a one-dimensional system, and the Poisson and Schrödinger equations are solved using an iterative finite-difference scheme. It was found that carriers aggregate near the center of the tube, with a negative carrier density of ⟨ρn⟩ = 7.89 × 10^13 cm−3 and positive carrier density of ⟨ρp⟩ = 3.85 × 10^13 cm−3. In future work, the erratic behavior of convergence will be investigated.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Epistemic Interaction - tuning interfaces to provide information for AI support
Emwavesandtransmission Lines Jntu Model Paper{Www.Studentyogi.Com}
1. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 1
II B.Tech II Semester Supplimentary Examinations, Apr/May 2008
E M WAVES AND TRANSMISSION LINES
( Common to Electronics & Communication Engineering and Electronics &
Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) State the Coulomb’s law in SI units and indicate the parameters used in the
equations with the aid of a diagram. [6]
(b) Point charges 1 and 2 are respectively located at (4, 0, -3) and (2, 0, 1). If
2 = 4 nC, nd 1 such that. [10]
i. The E at (5, 0, 6) has no Z-component.
ii. The force on a test charge at (5, 0, 6) has no X-component.
2. An in nitely long straight conducting rod of radius ‘a’ carries a current of I in +
direction. Using Ampere’s Circuital Law, nd in all regions and sketch the
variation of H as a function of radial distance. If I = 3 mA. and a = 2 cm., nd
and at ( 0, 1cm., 0) and (0, 4cm., 0). [16]
3. (a) In free space = m Sin (wt + z) x. Determine and displacement current
density. [8]
(b) Region 1, for which r 1 = 3 is de ned by 0 and region 2, 0 has
r2 = 5 given 1 = 4 x + 3 y 6 z (A/m). Determine 2 for 0 and the
angles that 1 and 2 make with the interface. [8]
4. Prove that under the condition of no re ection at an interface, the sum of the
Brewster angle and the angle of refraction is 2 for parallel polarization for the
case of re ection by a perfect conductor under oblique incident, with neat sketches.
[16]
5. (a) De ne and di erentiate between the terms: Instantaneous average and com-
plex poynting vectors, giving their mathematical expressions. [8]
(b) An EM wave of 3 2 Power density is incident normally from air on a
perfect dielectric boundary. If the resulting VSWR is 2.2, nd the re ected
and transmitted powers. [8]
6. (a) Explain the factors on which cut o frequency of a parallel plate wave guide
depend. [8]
(b) Obtain the frequency in terms of cut o frequency c at which the attenuation
constant due to conductor losses for the n mode is minimum for a parallel
plate wave-guide. [8]
7. (a) Derive a relation between re ection coe cient and characteristic impedance.
2. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 1
(b) Determine the re ection coe cients when [8]
i. L = 0
ii. L = short circuit
iii. L = open circuit.
iv. Also nd out the magnitude of re ection coe cient when L is purely
reactive.
8. (a) Explain how UHF lines can be treated as circuit elements, giving the necessary
equivalent circuits. [8]
(b) A loss less line of 100 is terminated by a load which pro duces SWR = 3. The
rst Maxima is found to be occurring at 320 cm. If f = 300 MHz, determine
load impedance. [8]
3. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 2
II B.Tech II Semester Supplimentary Examinations, Apr/May 2008
E M WAVES AND TRANSMISSION LINES
( Common to Electronics & Communication Engineering and Electronics &
Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) State Gauss’s law. Using divergence theorem and Gauss’s law, relate the
displacement density D to the volume charge density . [8]
(b) A sphere of radius “a” is lled with a uniform charge density of ‘ v’ c/ 3.
Determine the electric eld inside and outside the sphere. [8]
2. (a) De ne Ampere’s Force Law and establish the associated relations. [6]
(b) A long coaxial cable has an inner conductor carrying a current of 1 mA. along
+ direction , its axis coinciding with Z-axis. Its inner conductor diameter is
6 mm. If its outer conductor has an inside diameter of 12 mm. and a thickness
of 2 mm., determine at (0, 0, 0), (0, 1.5 mm, 0), (0, 4.5 mm, 0) and (0, 1
cm, 0). (No derivations) [10]
3. (a) In a perfect dielectric medium, the EM wave has maximum value for E of 10
V/m with r = 1 and r = 4. Find the velo city of the wave, peak poynting
vector, average poynting vector, impedance of the medium and peak value of
the magnetic eld. [6]
(b) What is the inconsistency in Ampere’s Law? How it is recti ed by Maxwell?
[5]
(c) Show that the total displacement current between the condenser plates con-
nected to an alternating voltage sources is exactly the same as the value of
charging current (conduction current). [5]
4. (a) De ne uniform plane wave. [5]
(b) Prove that uniform plane wave does not have eld components in the direction
of the propagation. [6]
(c) Determine the intrinsic impedance of free space. [5]
5. (a) State and Prove Poynting Theorem. [10]
(b) A Plane wave traveling in a free space has an average poynting vector of 5
watts/ 2. Find the average energy density. [6]
6. Starting from Maxwell’s equations, derive the expressions for the E and H eld
components for TE waves in a parallel plane wave guide. [16]
7. (a) List out types of transmission lines and draw their schematic diagrams. [5]
4. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 2
(b) Draw the directions of electric and magnetic elds in parallel plate and coaxial
lines. [5]
(c) A transmission line in which no distortion is present has the following parame-
ters Z0= 50 = 20mNP m = 0 6 0 Determine R, L, G, C and wavelength
at 0.1 GHz. [6]
8. (a) Draw the equivalent circuits of a transmission lines when [8]
i. length of the transmission line, 1 4, with shorted load
ii. when 1 4, with open end
iii. 1 = 4.
(b) Find out VSWR if [8]
i. 0 = 100 , L = 80
ii. when 0 = 80 , L = 100
5. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 3
II B.Tech II Semester Supplimentary Examinations, Apr/May 2008
E M WAVES AND TRANSMISSION LINES
( Common to Electronics & Communication Engineering and Electronics &
Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Derive the boundary conditions for the tangential and normal components of
Electrostatic elds at the boundary between two perfect dielectrics. [8]
(b) x-z-plane is a boundary between two dielectrics. Region 0 contains dielec-
tric material r1 = 2 5 while region 0 has dielectric with r2= 4 0 If
E = -30ax+50ay+70azv m nd normal and tangential components of the E
eld on both sides of the boundary. [8]
2. (a) Find the eld at the centre of a circular loop of radius ‘a’ , carrying a current
I along in z = 0 plane. [5]
(b) Determine the magnetic ux , for the surface described by [6]
i. = 1 0 = = 2 0 = = 2
ii. a sphere of radius 2 m., if the magenic eld is of the form = 1
(c) A conducting plane at y = 1 carries a surface current of 10 mA/m. Find H
and B at (0, 0, 0) and at (2, 2, 2). [5]
3. (a) In a perfect dielectric medium, the EM wave has maximum value for E of 10
V/m with r = 1 and r = 4. Find the velo city of the wave, peak poynting
vector, average poynting vector, impedance of the medium and peak value of
the magnetic eld. [6]
(b) What is the inconsistency in Ampere’s Law? How it is recti ed by Maxwell?
[5]
(c) Show that the total displacement current between the condenser plates con-
nected to an alternating voltage sources is exactly the same as the value of
charging current (conduction current). [5]
4. (a) What is polarization of an EM wave? Distinguish between di erent types of
polarizations? Prove that the polarization is circular when the two components
of electric eld are equal and are 90o apart. [8]
(b) A plane EM wave is normally incident on the boundary between two di-
electrics. What must be the ratio of refractive indices of the two media in
order that the re ected and transmitted waves may have average Power of
equal magnitude? [8]
5. (a) State and Prove Poynting Theorem. [10]
6. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 3
(b) A Plane wave traveling in a free space has an average poynting vector of 5
watts/ 2. Find the average energy density. [6]
6. For a Parallel plane wave guide of 3 cm seperation, determine all the propogation
characteristics, for a signal at 10 GHz, for [8+8]
(a) 10 waves
(b) TEM waves
Explain the terms used.
7. (a) List out types of transmission lines and draw their schematic diagrams. [5]
(b) Draw the directions of electric and magnetic elds in parallel plate and coaxial
lines. [5]
(c) A transmission line in which no distortion is present has the following parame-
ters Z0= 50 = 20mNP m = 0 6 0 Determine R, L, G, C and wavelength
at 0.1 GHz. [6]
8. (a) Draw the equivalent circuits of a transmission lines when [8]
i. length of the transmission line, 1 4, with shorted load
ii. when 1 4, with open end
iii. 1 = 4.
(b) Find out VSWR if [8]
i. 0 = 100 , L = 80
ii. when 0 = 80 , L = 100
7. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 4
II B.Tech II Semester Supplimentary Examinations, Apr/May 2008
E M WAVES AND TRANSMISSION LINES
( Common to Electronics & Communication Engineering and Electronics &
Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain the following terms: [8]
i. Homogeneous and isotropic medium and
ii. Line, surface and volume charge distributions.
(b) A circular ring of radius ‘a’ carries uniform charge L C/m and is in xy-plane.
Find the Electric Field at Point (0, 0, 2) along its axis. [8]
2. (a) Using the relation for of a nite straight wire, obtain the expressions for the
elds due to a semi in nite wire and in nite wire located on z-axis, carrying
a current I. [8]
(b) In a conducting medium =y2 z X + 2( + 1) Y - ( + 1)z2 Z A/m.
Find the current density at (1,0,-3) and calculate the current passing through
Y = 1 plane, 0 = = 1 0 = = 1. [8]
3. (a) Derive Maxwell’s equations in integral form and di erential form for time
varying elds. [8]
(b) Explain how the concept of Displacement current was introduced by Maxwell
to account for the production of Magnetic elds in the empty space. [8]
4. (a) Derive the expression for attenuation and phase constants of uniform plane
wave. [8]
(b) If r = 9 = 0 for the medium in which a wave with frequency f = 0.3
GHz is propagating, determine propagation constant and intrinsic impedance
of the medium when [8]
i. = 0 and
ii. = 10 mho/m.
5. (a) State and Prove Poynting Theorem. [10]
(b) A Plane wave traveling in a free space has an average poynting vector of 5
watts/ 2. Find the average energy density. [6]
6. (a) Explain attenuation in parallel-plate wave guides. Also draw attenuation
versus frequency characteristics of waves guided between parallel conducting
plates. [8]
(b) A parallel-plate wave guide made of two perfectly conducting in nite planes
spaced 3cm apart in air operates at a frequency of 10GHz. Find the maximum
time average power that can be propagated per unit width of the guide for
8. www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 4
7. (a) What are the salient aspects of primary constants of a two wire transmission
line. [8]
(b) A lossless transmission line used in a TV receiver has a capacitance of 50 PF/
m and an inductance of 200 nH/m. Find out the characteristic impedance for
10 meter long section of the line and 500 meter section. [8]
8. (a) Explain the principle of Impedance matching with Quarter wave Transformer?
[8]
(b) A 100 loss less line connects a signal of 100 KHz to a load of 140 . The
load power is 100mW . Calculate [8]
i. Voltage Re ection coe cient,
ii. VSWR,
iii. Position of Max Max min min.
![www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 1
II B.Tech II Semester Supplimentary Examinations, Apr/May 2008
E M WAVES AND TRANSMISSION LINES
( Common to Electronics & Communication Engineering and Electronics &
Telematics)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) State the Coulomb’s law in SI units and indicate the parameters used in the
equations with the aid of a diagram. [6]
(b) Point charges 1 and 2 are respectively located at (4, 0, -3) and (2, 0, 1). If
2 = 4 nC, nd 1 such that. [10]
i. The E at (5, 0, 6) has no Z-component.
ii. The force on a test charge at (5, 0, 6) has no X-component.
2. An in nitely long straight conducting rod of radius ‘a’ carries a current of I in +
direction. Using Ampere’s Circuital Law, nd in all regions and sketch the
variation of H as a function of radial distance. If I = 3 mA. and a = 2 cm., nd
and at ( 0, 1cm., 0) and (0, 4cm., 0). [16]
3. (a) In free space = m Sin (wt + z) x. Determine and displacement current
density. [8]
(b) Region 1, for which r 1 = 3 is de ned by 0 and region 2, 0 has
r2 = 5 given 1 = 4 x + 3 y 6 z (A/m). Determine 2 for 0 and the
angles that 1 and 2 make with the interface. [8]
4. Prove that under the condition of no re ection at an interface, the sum of the
Brewster angle and the angle of refraction is 2 for parallel polarization for the
case of re ection by a perfect conductor under oblique incident, with neat sketches.
[16]
5. (a) De ne and di erentiate between the terms: Instantaneous average and com-
plex poynting vectors, giving their mathematical expressions. [8]
(b) An EM wave of 3 2 Power density is incident normally from air on a
perfect dielectric boundary. If the resulting VSWR is 2.2, nd the re ected
and transmitted powers. [8]
6. (a) Explain the factors on which cut o frequency of a parallel plate wave guide
depend. [8]
(b) Obtain the frequency in terms of cut o frequency c at which the attenuation
constant due to conductor losses for the n mode is minimum for a parallel
plate wave-guide. [8]
7. (a) Derive a relation between re ection coe cient and characteristic impedance.](https://image.slidesharecdn.com/emwavesandtransmission-linesjntumodelpaperwww-studentyogi-com-100113233720-phpapp02/85/Emwavesandtransmission-Lines-Jntu-Model-Paper-Www-Studentyogi-Com-1-320.jpg)
![www.studentyogi.com www.studentyogi.com
Code No: RR220403
Set No. 1
(b) Determine the re ection coe cients when [8]
i. L = 0
ii. L = short circuit
iii. L = open circuit.
iv. Also nd out the magnitude of re ection coe cient when L is purely
reactive.
8. (a) Explain how UHF lines can be treated as circuit elements, giving the necessary
equivalent circuits. [8]
(b) A loss less line of 100 is terminated by a load which pro duces SWR = 3. The
rst Maxima is found to be occurring at 320 cm. If f = 300 MHz, determine
load impedance. [8]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)