Return-Path: Received: (qmail 3084 invoked from network); 2 Apr 2002 13:52:52 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO warrior.services.quay.plus.net) (212.159.14.227) by exhibition.plus.net with SMTP; 2 Apr 2002 13:52:52 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 26502 invoked from network); 2 Apr 2002 13:52:34 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior.services.quay.plus.net with SMTP; 2 Apr 2002 13:52:34 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 16sQ8e-0003sk-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 02 Apr 2002 16:24:00 +0100 Received: from mail2.cc.kuleuven.ac.be ([134.58.10.50]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 16sQ8d-0003sf-00 for rsgb_lf_group@blacksheep.org; Tue, 02 Apr 2002 16:23:59 +0100 Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail2.cc.kuleuven.ac.be (8.12.1/8.12.1) with SMTP id g32DjPJ5104334 for ; Tue, 2 Apr 2002 15:45:25 +0200 Message-ID: <3.0.1.16.20020402144029.30d72ed6@pb623250.kuleuven.be> X-Sender: pb623250@pb623250.kuleuven.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Tue, 02 Apr 2002 14:40:29 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: loop inductance In-reply-to: <3.0.1.16.20020402140550.30cf29da@pb623250.kuleuven.be> References: <19519.020329@dx.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: One more thing to mention : RA9MB's formula L = D*N^2 becomes a very very simple L = D for a single turn loop (L = inductance in uH, D = loop diameter in m, N = turns). Although it cannot be used for the really large transmitting loops it a good 'first guess' for the common RX loops (diameter 0.5m .. 2m). The formula couldn't be easier and gives a reasonable idea about the inductance (+/- few 10%). It doesn't have to be advanced math all the time :-) Rik