I would like to purchase 3 9bdi omnidirectional antennas to replace my dir-655 antennas but all the antennas i find online seem to only state they are compatible with 802.11 b/g and my router is n. Is there actually any difference in antenna between n and g? In short will these antennas somehow limit my throughput back down to the theoretical 54mbps of g or will I still be able to theoretically connect at 150mbps using n gear?