In this paper, we discussed the SNR gains of UWB template receivers performance are evaluated for WPANs. The optimum and isotropic− template receivers are considered. The biconical antennas are used as the Tx and Rx antennas. From the results, the SNR gains of optimum and isotropic template receivers are about 2.99 and 2.56 dB, respectively. The difference is low, that is only 0.43 dB. That because the channel is measured in the anechoic chamber, which can assume to be free space channel, and the biconical antennas have low distortion characteristics. In the future work, the SNR gains of indoor environment and other UWB antennas are investigated.