Version 1
: Received: 23 April 2024 / Approved: 23 April 2024 / Online: 23 April 2024 (17:18:27 CEST)
How to cite:
Ssali, H.; Kamiura, Y.; Doi, R.; Agemori, H.; Che, M.; Mikami, Y.; Kato, K. THz Wave Power Enhancement Using a Microstrip Line-based Combiner Integrated with Arrayed UTC-PDs. Preprints2024, 2024041534. https://doi.org/10.20944/preprints202404.1534.v1
Ssali, H.; Kamiura, Y.; Doi, R.; Agemori, H.; Che, M.; Mikami, Y.; Kato, K. THz Wave Power Enhancement Using a Microstrip Line-based Combiner Integrated with Arrayed UTC-PDs. Preprints 2024, 2024041534. https://doi.org/10.20944/preprints202404.1534.v1
Ssali, H.; Kamiura, Y.; Doi, R.; Agemori, H.; Che, M.; Mikami, Y.; Kato, K. THz Wave Power Enhancement Using a Microstrip Line-based Combiner Integrated with Arrayed UTC-PDs. Preprints2024, 2024041534. https://doi.org/10.20944/preprints202404.1534.v1
APA Style
Ssali, H., Kamiura, Y., Doi, R., Agemori, H., Che, M., Mikami, Y., & Kato, K. (2024). THz Wave Power Enhancement Using a Microstrip Line-based Combiner Integrated with Arrayed UTC-PDs. Preprints. https://doi.org/10.20944/preprints202404.1534.v1
Chicago/Turabian Style
Ssali, H., Yuya Mikami and Kazutoshi Kato. 2024 "THz Wave Power Enhancement Using a Microstrip Line-based Combiner Integrated with Arrayed UTC-PDs" Preprints. https://doi.org/10.20944/preprints202404.1534.v1
Abstract
Recent advancements in semiconductor photonic and electronic devices such as Uni-travelling-carrier photodiodes (UTC-PDs), have played a significant role in the development of Terahertz communication technology. However, a major challenge that still persists is the limited output power from a single UTC-PD required for practical transmission distances. To enhance the output power, we propose and demonstrate a novel Terahertz wave power combining technique using a photomixer device that comprises of two arrayed UTC-PDs monolithically integrated with a microstrip line-based 2 × 1 Wilkinson power combiner and a rectangular patch antenna on a Silicon Carbide (SiC) substrate at 300 GHz. At photocurrents of 8 mA and 10 mA from the two UTC-PDs, the device experimentally exhibited a 7.3 dB increase in power relative to the power obtained with 8 mA UTC-PD and a 4.4 dB increase in power relative to the power obtained with 10 mA UTC-PD, when both UTC-PDs were irradiated. This implies that power can be enhanced by a factor of N2 if the photocurrent is multiplied by a factor of N. This technology presents a holistic and cutting edge platform for further power multiplication by further increasing the number of arrayed UTC-PDs.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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