I am a newbie who has just installed Matlab and have the Antenna Designer Add-on.
My first exercise is a Log Periodic Antenna on PCB substrate.
I have set Frequency Range 20 MHz (I assume this is BW?) and Frequency 910 MHz.
Substrate 0.0016mm and impedance 50 Ohms
I am expecting Antenna size over 150mm but the entire antenna dimension shown is 36 x 24mm and element lenths (I assume these are in the array called "Arm Length" that starts from smallest to largest are only around 4-5mm
It seems when I select LPDA antenna it defaults to 5500 MHz on load with dimensions for that frequency, I change the frequency to 910 MHz and "apply" but the domensions do not update.
Any help much appreciated.
On a side not, the units are in metres but for UHF I would prefer mm, can you change the units?