I am building a wideband dual band omni for school. My antenna is about 2m long. The antenna length basically has two sections (divided by ports) - from 0 - 1.8m (This length is for 20-180MHz) and from 1.8m - 2m (This length is for 500-3000MHz). I have two edge ports feeding each section i.e. port at 0m and port at 1.8m.
I have managed to match for 20-180MHz band, but am struggling for the other band, is there a way to make sure that "port 2" doesnt see the impedance below it - i.e. impedance seen by port1.
How can i go about matching for the other port?