atul_microwaves_antenna
Member level 5
mathematical expression of am
Hello All,
I am doing a experiment in reflector feed design where I am looking for mathematical expression for its radiation pattern.
Now let me descibe in detail.I am currently finding the System Temperature of a Parabolic Dish+Receiver etc assembly.I am using feed pattern of (cos(theta/2)^n) which is body of revolution pattern and rotaionally symmetric one.But now my estimate of Tsys with this pattern is very differnt from that of ideal or expected value of Tsys.
I want to use some other mathematical expression like cos(theta)^n or sin(theta)^n or so.I was looking for radiation pattern of corrugated horn or array of conical horn.Patterns seems to be fine but I need a mathematical formula which feats to radiation pattern of corrugated horn or horns or log pereodics etc.
I want a -10 to -20 db taper at the edge of dish.
Anyone has anyidea of mathematical expressions of horn antennas other than which I mentioned above.
Thank you.
Hello All,
I am doing a experiment in reflector feed design where I am looking for mathematical expression for its radiation pattern.
Now let me descibe in detail.I am currently finding the System Temperature of a Parabolic Dish+Receiver etc assembly.I am using feed pattern of (cos(theta/2)^n) which is body of revolution pattern and rotaionally symmetric one.But now my estimate of Tsys with this pattern is very differnt from that of ideal or expected value of Tsys.
I want to use some other mathematical expression like cos(theta)^n or sin(theta)^n or so.I was looking for radiation pattern of corrugated horn or array of conical horn.Patterns seems to be fine but I need a mathematical formula which feats to radiation pattern of corrugated horn or horns or log pereodics etc.
I want a -10 to -20 db taper at the edge of dish.
Anyone has anyidea of mathematical expressions of horn antennas other than which I mentioned above.
Thank you.