Pictured above are Fred, KB0LF, and Teddy who is a 5 yr old poodle/yorkie mix. Teddy has an unusual taste for small pieces of banana that grandma (the xyl) throws to him in the morning at breakfast time

This is a figure from Stutzman and Thiele's book on antennas, "Antenna Theory and Design", Wiley, 1981. It shows the resistance and reactance of a square loop as a function of the number of wavelengths that the circumference of the loop is of the driving freq. When the loop circumference is just one wavelength, then the usual progression from inductive to capacitive reactance occurs as the antenna goes through resonance (and the reactance is zero at resonance). However if the loop is used at 1/2 its resonant frequency so the loop circumference is half a wavelength, the reactance is large at resonance andis either inductive or capacitive depending on whether the driving freq is just below or just above 1/2 wavelength.

The following figures show measured impedance data for a 160 meter loop at half the resonant frequency with a 250ft 450 ohm t-line, and calculated values at the antenna. The calculated values are very sensitive to the vel factor of the t-line since the line is about 1/4 wave. The measured values were taken with an Autek VA-1.