[SI-LIST] 回复： Re: Question on Obtaining Z parameter through VNA
- From: Ivan Zhang <ivan_zju@xxxxxxxxxxxx>
- To: Zhangkun <zhang_kun@xxxxxxxxxx>, si-list@xxxxxxxxxxxxx
- Date: Tue, 2 Aug 2005 22:53:12 +0800 (CST)
Dear Zhangkun
First of all, I'd like to express my appreciation to you for your rapid
feedback, but I was wondering how i can get these papers written by Mr. Istvan
Novak, or the whole name of his paper. Hope you can give me some clues. Thanks.
Best Regards
Ivan
Zhangkun <zhang_kun@xxxxxxxxxx> дµÀ£º
Dear Ivan
There are several paper, written by Istvan Novak, are about this topic.
Best Regards
Zhangkun
2005.8.2
----- Original Message -----
From: "Ivan Zhang"
To:
Sent: Tuesday, August 02, 2005 11:30 AM
Subject: [SI-LIST] Question on Obtaining Z parameter through VNA
> Dear all.
> I got to know this method by chance, however, the author of the paper doesn't
> mention how to deduce this formula. Thus, hope someone can
> help me. Thanks in advance.
>
>
> port1 port2
> -----------------------------------------------
> + | +
> |
> Z dut
> |
> _ | _
> -----------------------------------------------
>
> The SMA for port1 is very close to DUT as well as the SMA for port2. Get the
> S21 through 2-port s-parameter measurement, then calculate Zdut according to
> the formula shows below.
> S21 = Zdut/(Zdut + Zo/2)
> Zo is the impedance of VNA, it's 50 ohms in general.
>
>
>
>
> Best Regards
>
> Ivan
>
>
> ---------------------------------
> DO YOU YAHOO!?
> ÑÅ»¢Ãâ·ÑGÓÊÏä£ÖйúµÚÒ»¾øÎÞÀ¬»øÓʼþɧÈų¬´óÓÊÏä
>
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