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Zero-Bias Mixer Based on A1GaN/GaN Lateral Field-Effect Diodes for High-Temperature Wireless Sensor and RFID Applications.
- Source :
-
IEEE Transactions on Electron Devices . Dec2009, Vol. 56 Issue 12, p2888-2894. 7p. 6 Diagrams, 1 Chart, 8 Graphs. - Publication Year :
- 2009
-
Abstract
- In this paper, a zero-bias mixer using a lateral field-effect diode fabricated on standard GaN-on-Si AlGaN/GaN high electron-mobility-transistor wafers is demonstrated. The diode features strong nonlinearity near zero bias, enabled by a threshold-voltage modulation using a fluorine-plasma-treatment technique. The maximum change in conductance was adjusted to ~0 V, leading to optimal conversion loss (CL) of the mixer at zero bias and eliminating the need for any dc supplies. The mixer is characterized from room temperature (RT) to 250 °C. At 2.5 GHz and at RT, the CL and third-order intermodulation intercept point are 12.9 dB and 17.64 dBm, respectively. The operation of the proposed diode is modeled by a physical equivalent circuit, wit the element values extracted from the measured S-parameters. The voltage-biasing dependence of the CL can be explained by a the model. The high-temperature operation of the mixer shows that the proposed mixer can perform well in high-temperature and ultralow-power applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189383
- Volume :
- 56
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Electron Devices
- Publication Type :
- Academic Journal
- Accession number :
- 47399966
- Full Text :
- https://doi.org/10.1109/TED.2009.2032279