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antenna feed points?? - RF Cafe Forums
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| rf_sd77
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Post subject: antenna feed points??
Posted: Thu Jun 17, 2004 3:51 pm
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Joined: Fri Jun 11, 2004
2:17 pm
Posts: 5 |
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I was measuring atthe feed point on a printed circuit
board antenna and the impedance was supposed to
be seeing about 200 ohms for 2.4GHz application.
But when I measured it was about 20 ohms (this is
from a previous engineer here). I am new to antenna
and when I measured the antenna without the feed
point, it measures about 180 ohms but as stated
above, the with the feed point it is 20 ohms, any
insight??
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KC2SHO |
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Post subject:
Posted: Fri Jun 18, 2004 11:48 am
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Joined: Mon Apr 12, 2004
4:50 pm
Posts: 20
Location: South Florida
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What instrument are you measuring the impeadance?
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rf_sd77 |
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Post subject:
Posted: Fri Jun 18, 2004 12:21 pm
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Joined: Fri Jun 11, 2004
2:17 pm
Posts: 5 |
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I was using a agilent VNA. But I am mistated, it
was not the feed point, it was a transmission line
to the feed point, sorry for the confusion, I am
new to some of the terminology,
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Guest |
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Post subject: Antenna design books
Posted: Tue Jun 22, 2004 8:13 am
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Hi:
There are a lot of books out with good
information on designing and testing patch (printed
circuit) antennas, particularly for data communications.
You can look at places like Amazon.com.
Kirt
has a good list on RF Cafe where (he claims) the
ones listed are 4-star rating or above. Of course,
ratings can be slewed by biased reviewers, but in
general they are probably pretty reliable.
You should check them out. Most are around $120,
but get free shipping, and that's a small price
to pay for taking the guesswork out of your effort.
Cheers!
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Posted 11/12/2012
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