A Comparison of the Performance of THz Photoconductive Antennas
This letter explores the influence of the geometry of bias electrodes in the performance of terahertz (THz) photoconductive antennas (PCAs). To this end, a methodology is presented to calculate numerically the operational bandwidth and radiation efficiency of the PCAs. The procedure is validated thr...
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| Veröffentlicht in: | IEEE antennas and wireless propagation letters 2014, Vol.13, p.682-685 |
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| container_title | IEEE antennas and wireless propagation letters |
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| creator | Moreno, E. Pantoja, M. F. Bretones, A. R. Ruiz-Cabello, M. Garcia, S. G. |
| description | This letter explores the influence of the geometry of bias electrodes in the performance of terahertz (THz) photoconductive antennas (PCAs). To this end, a methodology is presented to calculate numerically the operational bandwidth and radiation efficiency of the PCAs. The procedure is validated through a comparison to experimental measurements. Also, results are depicted from numerical simulations of different PCAs under varying conditions of bias voltage, doping factor, and incident optical power. It is concluded that an appropriate configuration of the electrodes may double the efficiency of the antennas, with a penalty in the bandwidth of the radiated pulse usually smaller than 10%. |
| doi_str_mv | 10.1109/LAWP.2014.2314260 |
| format | Article |
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It is concluded that an appropriate configuration of the electrodes may double the efficiency of the antennas, with a penalty in the bandwidth of the radiated pulse usually smaller than 10%.</description><subject>Antennas</subject><subject>Bandwidth</subject><subject>Bias</subject><subject>Computational efficiency</subject><subject>Electrodes</subject><subject>Geometry</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Optical pulses</subject><subject>Photoconductive antennas</subject><subject>Principal component analysis</subject><subject>terahertz technology</subject><subject>Ultrafast optics</subject><subject>Voltage</subject><issn>1536-1225</issn><issn>1548-5757</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1Lw0AQhhdRsFZ_gHgJePGSupP9zElKUSsU7KHicdlsJjSlydbdRNBfb0LFg5eZYXhmeHkIuQY6A6D5_Wr-vp5lFPgsY8AzSU_IBATXqVBCnY4zkylkmTgnFzHuKAUlBZuQh3my8M3Bhjr6NvFV0m0xWWOofGhs63BcbZbfyXrrO-98W_auqz8xmbcdtq2Nl-SssvuIV799St6eHjeLZbp6fX5ZzFepYzLvUlFJlJIVhdZDHkepcBSVttwyBYXQ0iqkSBlIKHU5VGE5MptJXUhXcsGm5O749xD8R4-xM00dHe73tkXfRwMyo5TznMKA3v5Dd74P7ZDODEaEzkHm-UDBkXLBxxiwModQNzZ8GaBmVGpGpWZUan6VDjc3x5saEf94qTQVCtgPXrFv5Q</recordid><startdate>2014</startdate><enddate>2014</enddate><creator>Moreno, E.</creator><creator>Pantoja, M. 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| source | IEEE Electronic Library (IEL) |
| subjects | Antennas Bandwidth Bias Computational efficiency Electrodes Geometry Mathematical analysis Mathematical models Optical pulses Photoconductive antennas Principal component analysis terahertz technology Ultrafast optics Voltage |
| title | A Comparison of the Performance of THz Photoconductive Antennas |
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