2010 Fiscal Year Final Research Report
Active Transmission Lines Loaded with Resonant Tunneling Diodes and Their Application to THz Signal Generation and Processing
| Project/Area Number |
20360155
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | University of Toyama |
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Principal Investigator |
MAEZAWA Koichi University of Toyama, 大学院・理工学研究部(工学), 教授 (90301217)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Masayuki 富山大学, 大学院・理工学研究部, 助教 (90303213)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 共鳴トンネル / 分布定数線路 / THz / 増幅器 / 発振器 |
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| Research Abstract |
This paper proposes a traveling wave amplifier based on transmission lines (TLs) periodically loaded with resonant tunneling diode (RTD) pairs. This TL can be regarded as a "lossy" TL with a negative loss because of the negative differential resistance of the RTD. This means that the TL can amplify signals while the signal travels along the line. One of the most important points to be investigated to realize this amplifier is the stability of the circuit. We discuss stability of the TLs periodically loaded with RTDs, and show that they can be stabilized by using composite right/left handed (CRLH) TL configuration. It is demonstrated using circuit simulation that this amplifier can have a gain for wide frequency range. In addition to this, we have demonstrated the possibilities of the high order harmonic oscillator using this type of active transmission lines.
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