Abstract
In this paper, metal-oxide thin-film Schottky barrier diodes (SBDs) are proposed to dynamically manipulate spoof surface plasmon polaritons (SSPPs) at millimeter wave (MMW) and terahertz (THz) frequencies. Bridging the gaps of split ring resonators (SRRs) and electric-field-coupled inductor-capacitor resonators (ELCRs) with planar thin-film SBD structure can actively change the thin-film carrier density within the gaps via forward bias, which manipulates the resonant amplitude of SSPPs at central frequencies consequently. As a demonstration, single-frequency and dual-frequency active SSPP devices with SRRs were fabricated and tested, showing an excellent amplitude modulation and dual-frequency multi-bit modulation capability at MMW frequencies, respectively. Furthermore, the planar thin-film SBD structure was integrated in an ELCR array to verify the feasibility of the proposed modulation method at 0.39 THz. This method greatly promotes the working frequency of the metal-oxide thin-film SBDs, and pave a new way for program-mable SSPPs at MMW and THz frequencies.
Original language | English |
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Title of host publication | 2023 IEEE MTT-S International Wireless Symposium, IWS 2023 - Proceedings |
Publisher | IEEE |
Pages | 1-3 |
Number of pages | 3 |
ISBN (Electronic) | 9798350336535 |
ISBN (Print) | 9798350336542 |
DOIs | |
Publication status | Published - 29 Aug 2023 |
Event | 2023 IEEE MTT-S International Wireless Symposium, IWS 2023 - Qingdao, China Duration: 14 May 2023 → 17 May 2023 |
Conference
Conference | 2023 IEEE MTT-S International Wireless Symposium, IWS 2023 |
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Country/Territory | China |
City | Qingdao |
Period | 14/05/23 → 17/05/23 |
Keywords
- active modulation
- millimeter wave and terahertz frequencies
- Schottky barrier diodes
- spoof surface plasma polaritons
- thin-film