Tagged Questions
1
vote
0answers
23 views
Does shadow fading change if obstacles are fixed?
Given a RF sender and a receiver, suppose the obstacles between them are fixed, both their material and dielectric properties, does the path loss caused by their shadowing vary? If yes, what causes ...
0
votes
1answer
320 views
How do EM waves get detached from an antenna?
How does an electro-magnetic waves get detached from an antenna and spread to the space?
While an antenna receives an EM wave, which quantity of the EM wave (electric or magnetic) is used for ...
1
vote
2answers
325 views
How is antenna gain correlated to beam width?
Let's say you have two dipole type antennas. Antenna A has a gain of 2.15 dBi, a horizontal beam width of 360 deg and a vertical beam width of 45 deg. Antenna B is similar to antenna A, but has a ...
5
votes
1answer
1k views
Adverse Health Effects of Strong Radio Waves
A while ago, I was hiking near the Hollywood Sign in Los Angeles. When I got to the sign, I found out it was fenced off; with several signs and a security camera promising prompt enforcement. As I was ...
