•−•  ••−•    −•−•  •−  ••−•  •
RF Cafe Morse Code >Hear It<

Job Board

About RF Cafe™

Sitemap

The copper thickness-->affect the PCB antenna and RF trac - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


 Post subject: The copper thickness-->affect the PCB antenna and RF trac
Posted: Wed Nov 16, 2005 8:56 am 
 
Captain

Joined: Tue Nov 08, 2005 10:13 pm
Posts: 8
Dear all,

For the original design, the copper thickness at toppest and lowest PCB is 1.5oz. If we change it to the 0.5oz or 1.0oz thickness, what were the effect for the PCB antenna and the RF trace path? (The PCB antenna and the RF trace path are on the toppest and lowest PCB) Do I need to re-design the PCB antenna dimension and the width of the RF trace path after I change the thickness of the copper?

thanks

wccheng


 
   
 
 Post subject:
Posted: Wed Nov 16, 2005 12:06 pm 
 
Captain
User avatar

Joined: Sat Aug 30, 2003 6:42 pm
Posts: 5
Hey Cheng, copper thickness will not make much difference. Take a look at the effective trace width and and substrate height equations and you will see trace has a very small effect. Nevertheless, you will probably want to adjust it to get maximum performance, particularly when allowing for ecthing tolerances.

Image
Image
Image


Hey! the pictures worked!

Good luck to you.



tbone


 
   
 
 Post subject:
Posted: Wed Nov 16, 2005 9:06 pm 
 
Captain

Joined: Tue Nov 08, 2005 10:13 pm
Posts: 8
How about the PCB antenna?
thanks


 
   
 
 Post subject: for antenna
Posted: Mon Dec 12, 2005 10:58 am 
 
Lieutenant
 

Joined: Fri Dec 09, 2005 10:18 am
Posts: 3
The answer should be the same for the antenna.


 
   
 
 Post subject:
Posted: Tue Dec 13, 2005 2:32 am 
From my experience,

the effect of copper thickness is negligible. Go and build your antenna...

H.


 
  
 
 Post subject:
Posted: Tue Dec 13, 2005 12:04 pm 
 
Colonel
User avatar

Joined: Tue Aug 09, 2005 1:07 pm
Posts: 28
same here. If you model it in HFSS, you see barely any difference between 0.5 and 1.5oz copper traces. Also, you can safely model the trace with an infinitesimal sheet.

FYI, I have seen this for frequencies from 1-6GHz...






Posted  11/12/2012
Custom Search
More than 10,000 searchable pages indexed.

Your RF Cafe
Progenitor & Webmaster

Click here to read about RF CafeKirt Blattenberger... single-handedly redefining what an engineering website should be.

View the YouTube RF Cafe Intro Video Carpe Diem!
(Seize the Day!)

5th MOB: My USAF radar shop

Airplanes and Rockets: My personal hobby website

Equine Kingdom: My daughter Sally's horse riding website