Welcome to your Transmission Lines/Antennas
Actual height of antenna should be at least
What is the front-to-back ratio of an antenna which radiates 500 watts in a northernly direction and 50 watts in a southernly direction?
What is the longest wavelength that a 2.5-cm wide waveguide will support in the dominant mode (m = 1)?
An antenna with unity gain
__________ is the amount of voltage induced in a wave by an electromagnetic wave
For earth’s station transmitter with an output power of 40 dBw, a back-off loss of 13 dB, a total branching and feeder loss of 13 dB, and a transmit antenna gain of 40 dB, determine the EIRP.
If a transmission line is terminated with a resistance equal to its characteristic impedance
What is the gain of four identically polarized antennas stacked one above the other and fed in phase?
1A Hertz antenna is operating on a frequency of 2182 kHz and consists of a horizontal wire that is hanged between two towers. What is the frequency of its third harmonic?
How many cycles of a 1-MHz wave can a 6-mile transmission line accommodate?
Frequencies in the UHF range propagate by means of
Power loss due to increased effective resistance of a conductor at microwave frequencies due to skin effect
Two or more antennas are used, separated by several wavelengths
The ratio of incident and reflected voltage waves representing transmission and reflection coefficients used to characterize a linear microwave device.
Refers to the shortest distance in which a sky-wave signal will be returned to the earth. It includes the maximum ground-wave range and the width of the skip zone.
The power fed to a two-bay turnstile antenna is 100 watts. If the antenna has a 2dB power gain, what is the effective radiated power
What is a short (< l/4) length of transmission line, shorted at one end and attached at the appropriate distance from the load for the purpose of matching a complex load to the transmission line?
The _____ is a measure of the mismatch between a load and the transmission line.