NEC2 & PCB layouts Re: NEC-LIST: PCB transmission line modeling

Hi,
There were some research work done by a certain G K Saha (Dublin City
University in Ireland c.a. 1995). He uses NEC2 to model the radiation
from some PCB layouts.

Personally, I see the problem is the modelling for the air-dielectric
interface (half-space). Also on similar topic, see:
http://www.geocities.com/timfoo6143/

Hope it helps.

:-)

Tim Foo <fwj_at_np.edu.sg>
ECE Dept, http://www.np.edu.sg/ece/
Ngee Ann Polytechnic,
535 Clementi Road,
Singapore 599489

Tel: + 65 460 6143
Fax: + 65 467 1730

                                                                                                        
                    "Gilbert Mouget"
                    <gilbert.mouget_at_w To: "Dr. Edward P. Sayre" <esayre_at_nesa.com>,
                    aika9.com> "NEC-LIST" <nec-list_at_gweep.ca>
                    Sent by: cc: (bcc: Wan Juang Foo/ece/staff/npnet)
                    nec-list-admin_at_gw Subject: Re: NEC-LIST: PCB transmission line modeling
                    eep.ca
                                                                                                        
                                                                                                        
                    06/03/01 12:18 PM
                                                                                                        
                                                                                                        

----- Original Message -----
From: "Dr. Edward P. Sayre" <esayre_at_nesa.com>
To: "NEC-LIST" <nec-list_at_gweep.ca>
Sent: Sunday, June 03, 2001 5:38 AM
Subject: NEC-LIST: PCB transmission line modeling

> I am an experienced electromagnetics professional but haven't used or
> studied the NEC code. I have a few questions -
>
> 1. Has anyone on the NEC list used the NEC cose to model FR-4 PCB
> transmission lines (microstrip, buried microstrip, single stripline
> (including edge coupled differential) and dual stripline (broad side
> coupled and orthogonal routing)?
> 2. I am also interested in coupling between multiple lines as well as
> radiation from microstrip and striplines?

For this kind of job there is also PUFF from Caltech, an ms-dos program for
laying out and
analyzing microstrip and stripline circuits on IBM-compatible personal
computers.

10 us $ at http://www.its.caltech.edu/~mmic/puffindex/puffE/puffE.htm

Regards.

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