Thanks for the clarification and continued support.
I'll check into patch antenna designs.
By the way, I gave some incorrect specifications for the probe in the existing design in an earlier post. It is actually 1.5 centimeters long, and .85 inches from the back wall of the cavity.
Walt
OK, this is starting to make sense to me.
Tune the frequency by changing the distance between the probe and the back wall. That seems fairly simple, although I'm not clear on the meaning of statement that the "electrical distance = physical distance x sqrt of dielectric". If "physical...
OK, here's a little more about my situation. Presently I have a cavity machined out of a chunk of aluminum. The cavity is completely filled with a Teflon plug. It is fed with a 1.5" coax probe in wall of the large side 1.5" from the back surface. Cavity dimensions are roughly .8"h x 1.82"w x...
I need an expression for the fundamental frequency of an antenna constructed in the form of a simple box with one open end.
I'm also interested in any references that would be particularly helpful in design of this type of antenna in the 2.45 GHz ISM band.
