A behavioral synthesis tool for generating an integrated circuit design is described. According to embodiments of the present invention, the RF microwave element can be implemented as a short-circuited section of a quarter-wavelength long transmission line, or the RF microwave element can contain a metallic coupler and two thin striplines with different lengths, or the RF microwave element can be implemented using a balun concept. The second message is directed to a second modem connected to a second sampler device to cause the second sampler device to collect a second sample. The devices may further include apertures that receive spikes that extend outward from the implant.