_{Appropriate choice of GSM antenna matching circuit}

If the customer can give the housing and reference PCB to us then our technical team can carry out the necessary S11 response measurements in both magnitude and Smith Chart format of the complete system.

The necessary impedance matching circuit should be designed on the customer side if he/she has access to a software modelling tool which simulates the system.

The matching circuit values obtained from this exercise can then be employed and adjusted via trial and error to obtain the optimal 50 Ohm match at the frequencies of interest.

It should be noted that the impedance matching can improve the response of the antenna at certain frequencies (or bands of frequencies in the case of wideband matching circuits) but a reduction in the response at other frequencies may be observed.