4.1 Wire dipole

Quiz

Answer these questions to get feedback on how well you understand the course. Only one of the answers is correct. You don't have to answer every question. If you don't know the answer you can just leave it blank (default option: I won't answer this question) and this won't affect your score. Answering correctly will add 2 points to your score but on the other hand you'll lose 1 point if your answer is wrong. The questions are divided in groups of five questions.

Press See result after you have finished answering.

Displaying questions 1..5 of 10:

Question 1

The wire dipole is an antenna, which can be characterized by the following statement:

Possible answers for question 1: The antenna can be build from linear segments of an arbitrary radius.
The radius of the antenna wire is much smaller than the antenna length and the wavelength.
The antenna is built from an arbitrary copper wire.
I won't answer this question

Question 2

The moment method…

Possible answers for question 2: … exploits time instants for evaluating Maxwell equations in the integral form.
… is a general numeric method for solving Maxwell equations.
… is a numeric technique for solving Maxwell equations in the integral form.
I won't answer this question

Question 3

Directivity pattern of the antenna …

Possible answers for question 3: … gives magnitude of field intensity of the radiated wave for all the angles in the specified plane.
… describes geometry of a wire antenna (directions to which antenna wires are oriented).
… gives an information about polarization of the radiated wave.
I won't answer this question

Question 4

Input impedance of the antenna …

Possible answers for question 4: … is an impedance at the input of an antenna amplifier (if no amplifier is connected to the antenna, then the input impedance is zero).
… is an impedance, which can be measured on input terminals of the antenna.
… does not depend on the power radiated by the antenna.
I won't answer this question

Question 5

Basis functions …

Possible answers for question 5: … describe the location (the basis) of the antenna.
… are used for the approximation of current distribution in selected points along the antenna wire.
… are used for the approximation of current distribution in all the points along the antenna wire.
I won't answer this question