Exam 4: How Antennas Work

A _________________ analyzer is a tool that displays the signal amplitude and frequency of a radio transmission.

The size of an antenna is directly proportional to the wavelength of the signal it is designed to transmit and receive.

MATCHING -can only radiate a signal with the same amount of energy that appears at the antenna connector

If an antenna is much longer than the wavelength, what is the typical result?

Which of the following is the elliptical region within which signals travel between two antennas in a point-to-point link?

Which type of directional antenna is used for outdoor applications up to 16 miles?

Which of the following is likely to result in a wireless signal gain?

What does antenna polarization determine about the performance of the antenna?

List three of the four aspects of RF signal transmission you need to know.

What does antenna polarization tell you about the antenna wave? How is it important for signal reception?

A monopole antenna is a type of two-dimensional antenna.

What type of antenna is divided into a matrix of radiating elements and are used in modern radar systems?

What type of antenna is a straight piece of wire with no reflecting ground element?

A cellular phone antenna that is 13 inches long would be considered which of the following?

Which type of antenna should usually be used at the central location in a point-to-multipoint wireless link?

If a signal is represented as 15 mW + 10 db, what is the resulting signal strength in mW?

What does an antenna pattern show about the RF wave?

When a coaxial cable connects the antenna to the transmitter, what property of the cable must match that of the antenna?

Describe directional gain and how it can be accomplished with a passive antenna.

_____________ is a relative measurement used to represent gain or loss in a signal.