RF matching network and rectifier design and also battery charging circuit design.

For a commercially brought antenna we need to design a matching network and rectifier for harvesting Rf energy from 900 mhz and 1800 mhz band on the same pcb. Also need to create a charging circuit for the generated energy to store in a battery. Need expertise in the field of rf engineering and pcb designing. Should know the tools like ADS , or other simulation tools and also PCB design tools like altium. Please contact if you are only expert.