Thread
:
Theroretical antenna question
View Single Post
#
1
July 18th 03, 04:45 AM
Roy Lewallen
Posts: n/a
What relative gain do you think the two antennas have?
Are you still talking about isotropic antennas, or have you moved on to
accommodate other patterns?
How do you conclude that the receiving gain of your hypothetical antenna
is different from the transmitting gain?
Roy Lewallen, W7EL
wrote:
I was implying iostropic in 3 dimensions....
Now for a paradox.....
If RX==TX as for as antenna gain
And 100W is 100W.... then isotropic had dBi =0 be the laws of
conservation of energy.....
No suppose we have an antenna that captures all of the energy passing
though a 1M square.......
Now make that a 10M square.....
Clearly a 10M "Fishing net" can capture more than a 1M net, but
Then RXgain != TXgain
So what gives where is this wrong?
Reply With Quote