A half wave antenna is used to produce an electromagnetic wave which has a maximum electric field 600 V/m. a. Determine the magnetic field of this wave. b. Determine the total average energy density...
A half wave antenna is used to produce an electromagnetic wave which has a maximum electric field 600 V/m.
a. Determine the magnetic field of this wave.
b. Determine the total average energy density of this wave.
c. Determine the length of each of the two wires used in the antenna if the frequency of the wave produced is 3.2 GHz.
- print Print
- list Cite
Expert Answers
calendarEducator since 2013
write455 answers
starTop subjects are Science, Math, and History
a)
Suppose you have an electromagnetic wave with the Eand Bvectors like in the figure below. Than the direction of wave propagation is along the z axis (see the figure).We can write
`E_x = E_max*sin[2*pi*(z/lambda -t/T)]`
`B_y =B_max*sin[2*pi*(z/lambda-t/T)]`
The Maxwell equation relating the vectors E and B is
`grad...
(The entire section contains 161 words.)
Unlock This Answer Now
Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.
Related Questions
- What are the electromagnetic field, electromagnetic waves and the electromagnetic spectrum?
- 1 Educator Answer
- How is the magnitude of the magnetic field of an electromagnet enhanced?
- 1 Educator Answer
- Why can't every conductor be an antenna or produce electromagnetic waves?
- 1 Educator Answer
- You dip your finger into a pan of water twice each second, producing waves with crests that are...
- 1 Educator Answer
- The magnetic force acting on a wire that is perpendicular to a 1.8T magnetic field is 3.5N. If...
- 1 Educator Answer