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Dipoles and VSWR-Antenna Theory and Analysis-Quiz, Exercises of Antenna Theory and Analysis

This quiz was taken by Nayna Rao at Mizoram University for Antenna Theory and Analysis course. It includes: Center-fed, Electric, Dipole, Lossless, Characteristic, Impedance, Input, Resistance, Wavelength, Radiation

Typology: Exercises

2011/2012

Uploaded on 07/11/2012

dheer
dheer 🇮🇳

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Course Title: Advanced Antenna Theory & Design Spring 2012
Instructor:
Student Name: ------------------------------------------------------ Reg. #
Quiz # 3a Total Marks: 20
---------------------------------------------------------------------------------------------------------------------
Question: A center-fed electric dipole of length is attached to a lossless TL of
characteristic impedance of 50-ohm. The input resistance of the antenna is 100-ohm. What
is the input VSWR? It is desired to increase this VSWR to double the current value and
maintain this new VSWR for a particular application. What is the maximum input
resistance to keep this VSWR? Also calculate the length (in wavelengths) of the dipole for
this application? What is the radiation resistance of this dipole?
Solution:
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Course Title: Advanced Antenna Theory & Design – Spring 2012

Instructor: Student Name: ------------------------------------------------------ Reg. # Quiz # 3a Total Marks: 20


Question: A center-fed electric dipole of length is attached to a lossless TL of characteristic impedance of 50-ohm. The input resistance of the antenna is 100-ohm. What is the input VSWR? It is desired to increase this VSWR to double the current value and maintain this new VSWR for a particular application. What is the maximum input resistance to keep this VSWR? Also calculate the length (in wavelengths) of the dipole for this application? What is the radiation resistance of this dipole? Solution:

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