VK5KLT Leigh and Lloyd VK5BR An in -depth discussion hosted on the VK5BAR site
From Leigh VK5KLT.

I've been working professionally in the field of electrically-small antennas for about 20 years now; both in the radio communications / defence electronics field and the specialist discipline of radio frequency
identification (RFID) technology, where I hold about 15 or so international patents. As well as being a practicing engineer / researcher, I've also spent many years as an academic / university lecturer in the
electromagnetics and antennas / RF communications field.
Leigh Turner VK5KLT has been an invaluable source of information and insight into the operation of the magnetic loop aerial - For more information look at Leigh's QRZ page and be sure to look at the following link for a deeper and interesting exchange into antenna and loop theory. Mike - VK4AMZ.
The Underestimated Magnetic Loop HF Antenna by Leigh Turner VK5KLT