A good impedance matching network should match a load to within a maximum SWR (typically less than 2?).
But with a varying load (i.e. Antenna in varying surroundings), are there any techniques that match a widely varying load to a less widely varying match?
In other words, if the plotted range of a given antenn's loads on a Smith chart were the size, so to speak, of an SWR circle of 3.5, is there a matching technique that results in a matched impedance that is always less than 2?
UPDATE In my particular case, I'm working with a Maxim 7044 transmitter at 320MHz in a wireless sensor. So large SWR voltages aren't the problem. I want to maintain an SWR < 2 under all conditions, with an antenna that occupies most of a quadrant of the Smith chart.