Microstrip antenna using ads

[antennadesign54321]

Hi,
I'm a beginner to ADS Software, using it for the first time. I have been asked to design a microstrip antenna with following specifications :

Frequency = 10 Ghz
Input impedance = 100 Ohms
W= 1.186cm
L= .906cm
Duriod RT/5880
Er=2.2
h= .0625


How do i do it ? How to do matching? Please help me. if you have any document which explains all the steps. and how to calculate Zo. etc.

thanks a lot.

 

[mkonca]

Since you are given the dimensions you dont really need to design much. You can easily create the patch by drawing a rectangle in momentum. Then:
1. Place the port (this is the only thing you have to figure out, you may use pin feed whic is just placing a port on the patch or you can create a microstrip leading to the patch)
2. momentum> substrate>create/modify (just change the Er and height)
3. momentum> simulation> S parameters (select the sim frequency and run)
4. Display your results

let me know if you get stuck, I am pretty sure there are many ADS tutorials on the internet, keep looking.

 

[mkonca]

chech out these pdfs!

 

[antennadesign54321]

Hi MKonca,
Thanks for your response.. Yes i figured out till now, but using the above values iam not getting the output less than -10dB , so inorder to do that i need to matching for which the resistance is given to me.. I need help in it as in how to do matching( i think we need to use some linecalc function?) but what after that.? Do you know more details about it..

thanks again for your response.

regards,

 

[mkonca]

Since you are trying to match to 100 ohms you should change your port impedance to 100 and see how is your matching. what kind of a feed did you end up using?