Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!


Rigol DHO1000 Oscilloscope - RF Cafe

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Innovative Power Products Couplers

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

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues - primarily having to spend time purging garbage posts from the board. At some point I might start the RF Cafe Forums again if the phpBB software gets better at filtering spam.

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

-- Amateur Radio
-- Anecdotes, Gripes & Humor
-- Antennas
-- CAE, CAD, & Software
-- Circuits & Components
-- Employment & Interviews
-- Miscellany
-- Swap Shop
-- Systems
-- Test & Measurement
-- Webmaster

wccheng
 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


 
   
 
tbone
 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


 
   
 
wccheng
 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


 
   
 
Joel-Tang
 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.


 
   
 
Honza
 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.


 
  
 
UWB_antenna_guy
 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
Innovative Power Products Couplers
RF Cascade Workbook 2018 by RF Cafe

KR Electronics (RF Filters) - RF Cafe

Copper Mountain Technologies (VNA) - RF Cafe