GSM antenna selection and matching circuitry design

Closed - This job posting has been filled and work has been completed.

Job Description

Hi,

We are trying to build a mobile device -which sends sensor data to database over GSM- for the first time. We are using SimCom Sim900R Dual band (900-1800 MHz) GSM module. We developed our circuitry on board using external GSM antenna, and now we want to build a compact design on PCB, which requires an embedded antenna solution.

To do this, we have to find a solution for embedded Dual band GSM antenna. We can use small external Ceramic (or any other material) antenna or plot the antenna structure on PCB directly.

We want you to find a solution for us about the antenna and matching circuitry issue. Our concerns are:

1-the solution should be low cost and as small sized as possible.
2-first choice is using small ceramic (or other material) antennas, for this you should find a low cost antenna, and prepare a matching circuitry in between antenna and Sim900R GSM module.
3-If you prefer antenna printing on PCB, you should prepare it with matching circuitry, and guide us about how to make it printed on PCB.

For details we can have Skype talk.

Regards