Version 1
: Received: 10 June 2024 / Approved: 10 June 2024 / Online: 11 June 2024 (10:34:24 CEST)
How to cite:
Zhang, Z.; Yang, L.; Zhou, H.; Ye, K.; Qiu, S.; Chen, X.; Ma, Y.; Li, R. Dual-Frequency Terahertz Amplitude Modulator Based on the Coupling Effect of Cross-Shaped Structure and U-Shaped Metal Patches. Preprints2024, 2024060652. https://doi.org/10.20944/preprints202406.0652.v1
Zhang, Z.; Yang, L.; Zhou, H.; Ye, K.; Qiu, S.; Chen, X.; Ma, Y.; Li, R. Dual-Frequency Terahertz Amplitude Modulator Based on the Coupling Effect of Cross-Shaped Structure and U-Shaped Metal Patches. Preprints 2024, 2024060652. https://doi.org/10.20944/preprints202406.0652.v1
Zhang, Z.; Yang, L.; Zhou, H.; Ye, K.; Qiu, S.; Chen, X.; Ma, Y.; Li, R. Dual-Frequency Terahertz Amplitude Modulator Based on the Coupling Effect of Cross-Shaped Structure and U-Shaped Metal Patches. Preprints2024, 2024060652. https://doi.org/10.20944/preprints202406.0652.v1
APA Style
Zhang, Z., Yang, L., Zhou, H., Ye, K., Qiu, S., Chen, X., Ma, Y., & Li, R. (2024). Dual-Frequency Terahertz Amplitude Modulator Based on the Coupling Effect of Cross-Shaped Structure and U-Shaped Metal Patches. Preprints. https://doi.org/10.20944/preprints202406.0652.v1
Chicago/Turabian Style
Zhang, Z., Yong Ma and Renpu Li. 2024 "Dual-Frequency Terahertz Amplitude Modulator Based on the Coupling Effect of Cross-Shaped Structure and U-Shaped Metal Patches" Preprints. https://doi.org/10.20944/preprints202406.0652.v1
Abstract
This letter presents a dual-frequency terahertz amplitude modulator based on a cross-shaped structure and U-shaped metal patches. Its structural unit is a typical metal-substrate structure. The top metal consists of a cross-shaped structure and U-shaped metal patches, and the bottom substrate layer is made of quartz. Amplitude modulation is achieved by adjusting the temperature of the vanadium dioxide (VO2) patches. The modulation depth can be approximately 75%. The mechanism of the resonance frequency is explained by the equivalent circuit model. The proposed structure shows good amplitude modulation capability at different incidence and azimuth angles by changing the location of the VO2 patches. The dual-frequency terahertz amplitude modulator can be used in terahertz communication, imaging, etc.
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.
