Hi all,


I have checked that for a mobile phone internal antenna, a reasonably good VSWR seems to be around 3:1. Since the PA is normally designed to drive a 50-ohm load, does this mean that most handsets these days feature a broadband match between the cellular switch and the antenna? If so, how is it normally implemented? LC matching?

From what I've been reading, the antenna's performance is very sensitive to its surrounding environment, so it seems that the manufacturers need to first develop the floor plan for the RF front end and then design the matching based on the best performance. Does that sound right?


thanks,
Aaron


BTW, I realize I probably shouldn't be using the word matching since it isn't really impedance matching...