| Author |
Message |
vjfaisal
Joined: 24 Sep 2006
Posts: 264
Location: pakistan
|
 22 Dec 2006 20:33 need help in this Antena and transmission line QUestion |
|
|
|
|
hi
1) compare singnal amplitude with power in the feeder.
2) and how the thickness of antenna wire rather dependent on frequency rather than on amplitude.
please clear me the basics of these both ,its very important for me.(if anyone knows)
best regards
|
|
| Back to top |
|
 |
Google
AdSense
|
22 Dec 2006 20:33 Ads |
|
|
|
|
|
|
| Back to top |
|
|
kato01
Joined: 02 Dec 2002
Posts: 84
Helped: 2
|
23 Dec 2006 1:41 Re: need help in this Antena and transmission line QUestion |
|
|
|
|
1. power=amp^2/Z0
2. The thicker the wire, the lower the the Q-factor of the antenna
You can check this using MININEC for a wire antenna.
you can download the classic mininec at
http://www.emsci.com/Classic.htm
Added after 1 minutes:
1. power=amp^2/Z0
2. The thicker the wire, the lower the the Q-factor of the antenna
You can check this using MININEC for a wire antenna.
you can download the classic mininec at
http://www.emsci.com/Classic.htm
|
|
| Back to top |
|
|
vjfaisal
Joined: 24 Sep 2006
Posts: 264
Location: pakistan
|
24 Dec 2006 22:20 Re: need help in this Antena and transmission line QUestion |
|
|
|
|
hello would u like to tell me what is Z0 in this formula
power=ampli^2/Z0
best egards
|
|
| Back to top |
|
|
unkarc
Joined: 28 Apr 2001
Posts: 287
Helped: 36
|
25 Dec 2006 1:01 Re: need help in this Antena and transmission line QUestion |
|
|
|
|
| Z0 is the characteristic impedance of the feed line or transmission line that goes to the feed point of the antenna. The antenna input impedance is also Z0, this is the load for the transmitter.
|
|
| Back to top |
|
|
