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Rectifier component is a core part of a microwave wireless energy transmission system, and the development of new rectifier components is an important research direction in this field. Schottky diodes and field-effect transistors are currently the mainstream rectifier devices, but they have a limited rectification range and cannot achieve a wide-range rectification of both weak energy and medium energy density at the same time. In view of this, in this work proposed and designed is a Ge based p-type single-ended Schottky barrier field effect transistor (Schottky contact at the source and standard p+ doping at the drain) for 2.45 GHz microwave wireless energy transmission. Based on this, the Schottky structure of the device is fully utilised and a new diode connection is used in order to realize a dual channel wide range rectification of the trench and source lined Schottky structure opened at different bias voltages. Simulations are carried out by using the Silvaco TCAD software. For a half-wave rectifier circuit with a load of 0.3 pF and 70 kΩ, a wide range from –20 to 24 dBm rectification is achieved, which is 8 dBm wider than the range of Ge field-effect transistors under the same conditions, and the overall rectification efficiency is higher in the range, with a peak rectification efficiency of 57.27% at 16 dBm. The rectification efficiency at –10 dBm weak energy density reaches 6.17%, which is more than 7 times that of Ge FETs under the same conditions.
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Keywords:
- wireless energy transmission /
- Schottky barrier field effect transistor /
- Schottky contact /
- rectifying efficiency
[1] Ullah M A, Keshavarz R, Abolhasan M, Lipman J, Esselle K P, Shariati N 2022 IEEE Access 10 17231
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Google Scholar
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Li Y C, Chen H Y, Song J J 2020 Acta Phys. Sin. 69 108401
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[15] 张茂添 2014 硕士学位论文 (厦门: 厦门大学)
Zhang M T 2014 M. S. Thesis (Xiamen: Xiamen University) (in Chinese)
[16] 施敏, 伍国珏(耿莉, 张瑞智译) 2007 半导体器件物理 (北京: 西安交通大学出版社) 第 130—142页
Sze S M, Kwok K N (translated by Geng L, Zhang R Z) 2007 Physics of Semiconductor Devices (Xi’an: Xi’an jiaotong University Press) pp130–142 (in Chinese)
[17] 汤晓燕 2007博士学位论文 (西安: 西安电子科技大学)
Tang X Y 2007 Ph. D. Dissertation (Xi’an: Xidian University) (in Chinese)
[18] Shokrani M R, Hamidon M N, Khoddam M, Najafi V 2012 IEEE International Conference on Electronics Design Kuala Lumpur, Malaysia, November 5–6, 2012 p234
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图 1 Ge基p沟SB-MOSFET随外加电压变化的能带图 (a)
$| {{V_{\text{g}}}} | = | {{V_{\text{d}}}} | = 0$ ; (b)$| {{V_{\text{g}}}} | = 0, | {{V_{\text{d}}}} | > 0$ ; (c)$ | {{V_{\text{g}}}} | < | {{V_{\text{T}}}} | $ ; (d)$| {{V_{\text{g}}}} | > | {{V_{\text{T}}}} |$ Figure 1. Energy band diagram of Ge based p-channel SB-MOSFET with applied voltage: (a)
$ | {{V_{\text{g}}}} | = | {{V_{\text{d}}}} | = 0 $ ; (b)$ | {{V_{\text{g}}}} | = 0, | {{V_{\text{d}}}} | > 0 $ ; (c)$ | {{V_{\text{g}}}} | < | {{V_{\text{T}}}} | $ ; (d)$ | {{V_{\text{g}}}} | > | {{V_{\text{T}}}} | $ .
图 2 Ge基p沟SBSL-MOSFET随外加电压变化的能带图 (a)
$ \left| {{V_{\text{g}}}} \right| = \left| {{V_{\text{d}}}} \right| = 0 $ ; (b)$ \left| {{V_{\text{g}}}} \right| > \left| {{V_{\text{T}}}} \right| $ Figure 2. Energy band diagram of Ge based p-channel SBSL-MOSFET with applied voltage: (a)
$ \left| {{V_{\text{g}}}} \right| = \left| {{V_{\text{d}}}} \right| = 0 $ ; (b)$ \left| {{V_{\text{g}}}} \right| > \left| {{V_{\text{T}}}} \right| $ .
图 3 SB-MOSFET (a) 和 SBSL-MOSFET (b)器件结构及仿真用关键参数值
Figure 3. The key parameter values for device structure and simulation of SB-MOSFET (a) and SBSL-MOSFET (b).
图 4 Ge SB-MOSFET (a)和 Ge SBSL-MOSFET (b)仿真结构图
Figure 4. The simulation structure diagram of Ge SB-MOSFET (a) and SBSL-MOSFET (b).
图 5 标准坐标系(a)和对数坐标系下(b)三种MOSFET的转移特性曲线图
Figure 5. Transfer characteristic curves of three MOSFETs in the standard coordinate system (a) and the logarithmic coordinate system (b).
图 6 SB-MOSFET和SBSL-MOSFET输出特性曲线图
Figure 6. Output characteristic curves of SB-MOSFET and SBSL-MOSFET.
图 7 Ge-MOSFET输出特性曲线图
Figure 7. Output characteristic curve of Ge-MOSFET.
图 8 传统二极管连接方式SBSL-MOSFET电流示意图 (a) 正向电流; (b) 反向电流
Figure 8. Conventional diode connection of SBSL-MOSFET current diagram: (a) Forward current; (b) reverse current.
图 9 新型连接方式SBSL-MOSFET电流示意图 (a) 正向电流; (b) 反向电流
Figure 9. Novel connection of SBSL-MOSFET current diagram: (a) Forward current; (b) reverse current.
图 10 半波整流电路示意图
Figure 10. The schematic diagram of half wave rectifier circuit.
图 11 Ge基SBSL-MOSFET在两种连接方式下的I-V曲线图
Figure 11. I-V curve diagram under two connection methods of Ge based SBSL-MOSFET.
图 12 SB-MOSFET和SBSL-MOSFET在新型连接方式下I-V曲线图
Figure 12. I-V curve diagram under the new connection method of SB-MOSFET and SBSL-MOSFET.
图 13 (a) 瞬态仿真输入输出电流电压波形图; (b) 瞬态仿真输入输出电压单周期局部放大图; (c) 瞬态仿真输入输出功率图; (d) 整流效率和负载电压随负载阻抗变化图
Figure 13. (a) Transient simulation input and output current and voltage waveforms; (b) transient simulation input and output voltage single-cycle partial enlarged diagram; (c) transient simulation input and output power diagrams; (d) rectification efficiency and load voltage with load impedance change graph.
图 14 SB-MOSFET和SBSL-MOSFET整流效率曲线图
Figure 14. Rectifying efficiency graph of SB-MOSFET and SBSL-MOSFET.
图 15 四种MOSFET整流效率曲线图
Figure 15. Rectifying efficiency graphs of four kinds of MOSFET.
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[1] Ullah M A, Keshavarz R, Abolhasan M, Lipman J, Esselle K P, Shariati N 2022 IEEE Access 10 17231
Google Scholar
[2] Haerinia M, Shadid R 2020 Signals 1 209
Google Scholar
[3] Divakaran S K, Krishna D D 2019 INT. J. RF. Microw. C. E 29 e21633
Google Scholar
[4] Zhang Z, Pang H, Georgiadis A, Cecati C 2019 IEEE Trans. Ind. Electron. 66 1044
Google Scholar
[5] Eteng A A, Goh H H, Rahim S K A, Alomainy A 2021 IEEE Access 9 27518
Google Scholar
[6] Zhu G L, Du J X, Yang X X, Zhou Y G, Gao S 2019 IEEE Access 7 141978
Google Scholar
[7] Xiao H, Zhang H, Song W, Wang J, Chen W, Lu M 2021 IEEE Trans. Ind. Electron. 69 2896
Google Scholar
[8] 宋建军, 张龙强, 陈雷, 周亮, 孙雷, 兰军峰, 习楚浩, 李家豪 2021 物理学报 70 108401
Google Scholar
Song J J, Zhang L Q, Chen L, Zhou L, Sun L, Lan J F, Xi C H, Li J H 2021 Acta Phys. Sin. 70 108401
Google Scholar
[9] 李妤晨, 陈航宇, 宋建军 2020 物理学报 69 108401
Google Scholar
Li Y C, Chen H Y, Song J J 2020 Acta Phys. Sin. 69 108401
Google Scholar
[10] Chong G, Ramiah H, Yin J, Rajendran J, Mak P I, Martins R P 2019 IEEE Trans. Circuits Syst. II, Exp. Briefs 68 1743
Google Scholar
[11] Choi W, Lee J, Shin M 2014 IEEE Trans. Electron Devices 61 37
Google Scholar
[12] Kim S, Lee K, Lee J H, Park B G, Kwon D 2021 IEEE Trans. Electron Devices 68 4754
Google Scholar
[13] Yao Y, Sun Y, Li X, Shi Y, Liu Z 2020 IEEE Trans. Electron Devices 67 751
Google Scholar
[14] Chen C W, Tzeng J Y, Chuang C T, Chien H P, Chien C H, Luo G L 2014 IEEE Trans. Electron Devices 61 2656
Google Scholar
[15] 张茂添 2014 硕士学位论文 (厦门: 厦门大学)
Zhang M T 2014 M. S. Thesis (Xiamen: Xiamen University) (in Chinese)
[16] 施敏, 伍国珏(耿莉, 张瑞智译) 2007 半导体器件物理 (北京: 西安交通大学出版社) 第 130—142页
Sze S M, Kwok K N (translated by Geng L, Zhang R Z) 2007 Physics of Semiconductor Devices (Xi’an: Xi’an jiaotong University Press) pp130–142 (in Chinese)
[17] 汤晓燕 2007博士学位论文 (西安: 西安电子科技大学)
Tang X Y 2007 Ph. D. Dissertation (Xi’an: Xidian University) (in Chinese)
[18] Shokrani M R, Hamidon M N, Khoddam M, Najafi V 2012 IEEE International Conference on Electronics Design Kuala Lumpur, Malaysia, November 5–6, 2012 p234
[19] Shokrani M R, Khoddam M, Hamidon M N B, Kamsani N A, Rokhani F Z, Shafie S B 2014 Sci. World J. 2014 1
Google Scholar
[20] Zhang D, Song J J, Xue X H, Zhang S Q 2022 Chin. Phys. B 31 068401
Google Scholar
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