E9G The Smith chart

- [[E9G01]] (A)
Which of the following can be calculated using a Smith chart? #card
	- [[A.]] Impedance along transmission lines
	- [[B.]] Radiation resistance
	- [[C.]] Antenna radiation pattern
	- [[D.]] Radio propagation
- [[E9G02]] (B)
What type of coordinate system is used in a Smith chart? #card
	- [[A.]] Voltage circles and current arcs
	- [[B.]] Resistance circles and reactance arcs
	- [[C.]] Voltage chords and current chords
	- [[D.]] Resistance lines and reactance chords
- [[E9G03]] (C)
Which of the following is often determined using a Smith chart? #card
	- [[A.]] Beam headings and radiation patterns
	- [[B.]] Satellite azimuth and elevation bearings
	- [[C.]] Impedance and SWR values in transmission lines
	- [[D.]] Point-to-point propagation reliability as a function of frequency
- [[E9G04]] (C)
What are the two families of circles and arcs that make up a Smith chart? #card
	- [[A.]] Inductance and capacitance
	- [[B.]] Reactance and voltage
	- [[C.]] Resistance and reactance
	- [[D.]] Voltage and impedance
- [[E9G05]] (A)
Which of the following is a common use for a Smith chart? #card
	- [[A.]] Determine the length and position of an impedance matching stub
	- [[B.]] Determine the impedance of a transmission line, given the physical dimensions
	- [[C.]] Determine the gain of an antenna given the physical and electrical parameters
	- [[D.]] Determine the loss/100 feet of a transmission line, given the velocity factor and conductor materials
- [[E9G06]] (B)
On the Smith chart shown in Figure E9-3, what is the name for the large outer circle on which the reactance arcs terminate? #card
	- [[A.]] Prime axis
	- [[B.]] Reactance axis
	- [[C.]] Impedance axis
	- [[D.]] Polar axis
- [[E9G07]] (D)
On the Smith chart shown in Figure E9-3, what is the only straight line shown? #card
	- [[A.]] The reactance axis
	- [[B.]] The current axis
	- [[C.]] The voltage axis
	- [[D.]] The resistance axis
- [[E9G08]] (C)
How is a Smith chart normalized? #card
	- [[A.]] Reassign the reactance axis with resistance values
	- [[B.]] Reassign the resistance axis with reactance values
	- [[C.]] Reassign the prime center’s impedance value
	- [[D.]] Reassign the prime center to the reactance axis
- [[E9G09]] (A)
What third family of circles is often added to a Smith chart during the process of designing impedance matching networks? #card
	- [[A.]] Constant-SWR circles
	- [[B.]] Transmission line length circles
	- [[C.]] Coaxial-length circles
	- [[D.]] Radiation-pattern circles
- [[E9G10]] (D)
What do the arcs on a Smith chart represent? #card
	- [[A.]] Frequency
	- [[B.]] SWR
	- [[C.]] Points with constant resistance
	- [[D.]] Points with constant reactance
- [[E9G11]] (B)
In what units are the wavelength scales on a Smith chart calibrated? #card
	- [[A.]] In fractions of transmission line electrical frequency
	- [[B.]] In fractions of transmission line electrical wavelength
	- [[C.]] In fractions of antenna electrical wavelength
	- [[D.]] In fractions of antenna electrical frequency