hazif
Newbie level 5
I have a reflectarray antenna, which function as a reflector.
I measure that antenna in chamber using signal generator (as transmit signal source) and spectrum analyzer (to receive reflected signal).
Does that mean i measure S21 since i use two different terminal/port?
And why the data plot (in term of power dBm vs theta) is different when i use VNA; in which VNA port 1 as transmit signal source and port 2 as receiver of reflected signal - which have a similar setup as sig gen and spec analyzer.
The VNA data plot is significantly differ from simulation. And the sig gen and spec analyzer data plot is much similar to the simulation.
So, i want to know is there any extra procedure i need to use for VNA setup...so that i can get the same plot if using sig gen and spec analyzer?
Plz help and tq so much...
I measure that antenna in chamber using signal generator (as transmit signal source) and spectrum analyzer (to receive reflected signal).
Does that mean i measure S21 since i use two different terminal/port?
And why the data plot (in term of power dBm vs theta) is different when i use VNA; in which VNA port 1 as transmit signal source and port 2 as receiver of reflected signal - which have a similar setup as sig gen and spec analyzer.
The VNA data plot is significantly differ from simulation. And the sig gen and spec analyzer data plot is much similar to the simulation.
So, i want to know is there any extra procedure i need to use for VNA setup...so that i can get the same plot if using sig gen and spec analyzer?
Plz help and tq so much...