Return-Path: Received: (qmail 26750 invoked from network); 10 Jul 2002 12:38:43 -0000 Content-Transfer-Encoding: 8bit Received: from warrior.services.quay.plus.net (212.159.14.227) by mailstore with SMTP; 10 Jul 2002 12:38:43 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 14663 invoked from network); 10 Jul 2002 12:38:00 -0000 Received: from post.thorcom.com (193.82.116.70) by warrior.services.quay.plus.net with SMTP; 10 Jul 2002 12:38:00 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 17SGfT-0002YE-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 10 Jul 2002 13:34:03 +0100 Received: from mail2.cc.kuleuven.ac.be ([134.58.10.50]) by post.thorcom.com with esmtp (Exim 3.33 #2) id 17SGfS-0002Y9-00 for rsgb_lf_group@blacksheep.org; Wed, 10 Jul 2002 13:34:02 +0100 Received: from dell-rik.fys.kuleuven.ac.be ([10.33.165.177]) by mail2.cc.kuleuven.ac.be (8.12.1/8.12.1) with ESMTP id g6ACXV8C111324 for ; Wed, 10 Jul 2002 14:33:31 +0200 Message-ID: <5.1.0.14.0.20020710141708.00ba0208@pb623250.kuleuven.be> X-Sender: pb623250@pb623250.kuleuven.be X-Mailer: QUALCOMM Windows Eudora Version 5.1 Date: Wed, 10 Jul 2002 14:36:47 +0200 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: LF: polarization of small loops In-reply-to: <5.1.0.14.0.20020710113519.00a82c30@gemini.herts.ac.uk> References: <01C227EF.24643850.g4jnt@thersgb.net> 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: Dear LF group, I have been looking for some information about the polarization of small loops, but no success. For full-size loops things are quite clear, a loop can be polarized horizontal or vertical depending on the feeding point. What about small loops ? I found several descriptions of small transmitting loops close to ground and there loops were fed at different places (center horizontal side, at the edges). Polarization seems to be vertical in all cases. And what about a small loop is free space ? Current distribution is uniform over the entire loop, regardless of the feeding point. So one would expect always the same polarization (but which one ?). Unless also the voltage distribution plays a role. Anyone who can point me to the right theory and/or has experience with feeding small loops at different points ? Thanks in advance, Rik ON7YD