Extra Class

Which of the following is a significant difference between foam dielectric coaxial cable and solid dielectric coaxial cable, assuming all other parameters are the same?

What impedance does a 1/4-wavelength transmission line present to an RF generator when the line is shorted at the far end?

What impedance does a 1/8-wavelength transmission line present to an RF generator when the line is shorted at the far end?

What impedance does a 1/8-wavelength transmission line present to an RF generator when the line is open at the far end?

What impedance does a 1/4-wavelength transmission line present to an RF generator when the line is open at the far end?

Which of the following can be calculated using a Smith chart?

What type of coordinate system is used in a Smith chart?

Which of the following is often determined using a Smith chart?

What are the two families of circles and arcs that make up a Smith chart?

Which of the following is a common use for a Smith chart?

On the Smith chart shown in Figure E9-3, what is the name for the large outer circle on which the reactance arcs terminate?

On the Smith chart shown in Figure E9-3, what is the only straight line shown?

How is a Smith chart normalized?

What third family of circles is often added to a Smith chart during the process of designing impedance matching networks?

What do the arcs on a Smith chart represent?

In what units are the wavelength scales on a Smith chart calibrated?

When constructing a Beverage antenna, which of the following factors should be included in the design to achieve good performance at the desired frequency?

Which is generally true for 160- and 80-meter receiving antennas?

What is receiving directivity factor (RDF)?

What is the purpose of placing an electrostatic shield around a small-loop direction-finding antenna?