Electromagnetic Field Interference on Transmission Lines due to On-Board Antenna

Figure 13

Measured power transfer from antenna to the multiple (five) transmission lines for three different types of transmission lines: microstrip, stripline and CPW. The grounds are connected between the antenna and board, and the five transmission lines are vertically positioned. (a) Cross-sectional view of three types of transmission lines, (b) comparison of transferred power to the transmission lines at Upper position, (c) comparison of transferred power to the transmission lines at Middle position, and (d) comparison of transferred power to the transmission lines at Lower position.

(a)

(b)

(c)

(d)