Richard

Do you know the approximate input impedance of a 0.1 lambda diameter
single turn loop?

Jerry


"Richard Fry" wrote in message
...
JM Do you have an actual application for this circularly
polarized directional UHF antenna with the "loop" included?

A*s*i*m*o*v Just curious about the UHF loop antenna as it is
said to have a gain of +1dB in the vertical position and -3dB
in the horizontal position.
________________

A planar, circular loop of diameter ~0.1 lambda is linearly polarized,
with peak gain* in the plane of the loop. This loop will have vertical
polarization when in the vertical position, and horizontal polarization
when in the horizontal position.

Lacking ~equal h-pol & v-pol gain at the same time, such a loop is not
circularly polarized -- even though the physical configuration of the loop
is a circle.

*theoretically about 1.74dBi (far field, free space)

RF