Experimental and Computational Analysis of Broadband THz Photoconductive Antennas

Figure 12

Analysis of overall bandwidth of measured THz signal based on the calculated S₁₁ parameter and the calculated photoconductive current density for (a) bowtie, (b) slotted, (c) fractal, and (d) circular PCAs. Dashed line represents the −10 dB value. All generated THz signals in the figures are obtained through experimental measurement.

(a)

(b)

(c)

(d)