Cann't get far-field resolution in the paper


#1

I simulate Phased-Array Antennas for Wide-Angle Beam-Steering. With the same parameter of material and geometry in the paper , I can’t get the same far-field resolution.
With Lg=15 μm,N=32, I still couldn’t get simailar far-field resolution of about 1.2° (ψ) × 3.3° (θ). My far-field resolution is 5-10 times bigger than paper’s.
Following pictures is grating antenna structure and result in the paper.

Following pictures is grating antenna structure and result I got.
. My far-field resolution is 5-10 times bigger than paper’s.

I know I ask a question hard to answer.I just want to know what’s factor may have effect on the result. And thank you if someone can answer me~~:-)


#2

Dear @lizhongyu15

Can you please attach your simulation file and the paper for a review? Also, can you please clarify what you mean by the resolution? Are you referring to image resolution?

Thanks


Phased-Array Antennas
#3

Thank you a lot! You made the only reply I got:slight_smile: thanks!

I don’t make it clear in this question, so I created a new topic.


IN that topic, I have attached simulation file and the paper . I mean beam divergence angle in the far field, by the resolution in the farfield.
Thanks again!