Working with microstrip patches

[Natalie89]

Hello,

I am working on a lab report, and we are working with microstrip patches. One of the antennas has a single patch, and the other has a double patch. Other than the fact that one has an extra patch, what is the difference between them? Why would someone use two instead of one?

Thanks!

 

[berkeman]

Hello,

I am working on a lab report, and we are working with microstrip patches. One of the antennas has a single patch, and the other has a double patch. Other than the fact that one has an extra patch, what is the difference between them? Why would someone use two instead of one?

Thanks!

Can you post a picture or a sketch (with dimensions)? What is the frequency that the antenna is meant for?

 

[waht]

The antennas will differ by their radiation pattern or polarization. Post pics.