Re: Wideband matching
Well, you would have to do a detailed design, but one quick test would be to put the load at the emitter of a bipolar transistor, ac couple drive the base with the RF signal, and just have a collector to Vcc resistor to stabilize the bias somewhat. The transistor acts like a voltage to current converter.
Another way would be to have a differential pair of transistors, and have the load in the common emmiter/source to ground connection.
BTW, there IS no matching, except to the base of the transistor. The load just sits there, approximating a short circuit.