Characterization of Received Pulses by Antennas in Proximity of Human Body

In this paper, two types of ultra-wideband antennas placed near/on the human body are characterized in terms of received pulses. One antenna features omni-directional radiation whereas the other one more directional radiation. The transmission with two types of the antennas on the body is compared with the different body orientations. Using the transmission data, the received pulses can be computed and studied. Generally, the directional antenna experiences a much lesser transmission attenuation and pulse distortion in the presence of the human body. Also, it is less sensitive to body orientation and able to provide a better coverage than the omni-directional antenna.