yes, but there is a minimum order quantity of 5

I do not know the purpose of the question, but

Basically, design is a job of engineer/designer. There are antenna manufacturing companies who does this. But, generally company designs for their own requirement/s. Engineers/researchers/students should design their own antenna.

we at our university do it.

Sir i have fabricated the microstrip patch antenna for uwb range is it possible to get measured results from vna at your university. 

Abhishek your problem seems to be only the measurement of antenna as fabrication itself isn't that big big a challenge. Any university close to your organization can have this facility.

And you can fabricate using chemical etching or any other PCB fabrication method.

The fabrication facility for microstrip patch antennas is available at our "Antennas & Liquid Crystals Research Center" K L Deemed to be University, Vijayawada along with testing facility. For more information contact Dr. B. T. P. Madhav

M. Venkateswararao

Thank you.

May be helpful.

To design a simple patch antenna...

Web : https://bhanuchander210.github.io/patch-antenna-util/

Python : https://pypi.org/project/patch-antenna/