Bandwidth Improvement of MMIC Single-Pole-Double-Throw Passive HEMT Switches with Radial Stubs in Impedance-Transformation Networks
Abstract
:1. Introduction
2. Circuit Design and Implementation
2.1. Analysis
2.2. SPDT Switch With Impedance Transformation Network
2.3. Parametric Study on the Geometry of the Radial-stub
2.4. Chip Design and Implementation
3. Measurement Results and Discussion
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Ref. | Tech. | Structure | Freq. (GHz) | Input Return Loss (dB) | Insertion Loss (dB) | Isolation (dB) | P1dB (dBm) | Chip Size (mm2) |
---|---|---|---|---|---|---|---|---|
[5] | 0.1-μm GaAs pHEMT | Distributed 6 shunt stacked HEMTs | 35–70 | > 15 | < 3 | > 40 | 20.2 @ 31GHz | 0.96 |
[9] | 0.15-μm GaAs pHEMT | Shunt with impedance transform network | 38–43 | > 15 | < 2 | > 30 | N/A | 2 |
[14] | GaAs | Shunt configuration | 20–40 | > 7 | 2 @ 40 GHz | 25-28 | N/A | 1.61 |
[15] | GaAs HEMT | Shunt with Quarter-wavelength | 42–46 | > 12 | < 1.6 | > 35 | N/A | 10 |
[16] | HJFET | Series resonant and shunt | DC-40 | N/A | < 3.5 | > 25 | 21 | 0.55 |
[17] | GaAs FET | Series-shunt configuration | 28 | 12.5 | 3.1 | 28.9 | N/A | 2.18 |
[18] | 0.07-μm GaAs | Shunt configuration | 24–27 | > 17.5 | < 1.5 | > 39 | N/A | < 3 |
[19] | 0.15-μm GaAs | Traveling-wave concept | 36–38 | > 8.1 | < 3.2 | > 28 | 12 @ 37 GHz | 1.1 |
This Work | 0.15-μm GaAs pHEMT | Impedance transform network with radial stub | 33–44 | > 16 | < 2.5 | > 30 | > 24 | 2 |
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Tsao, Y.-F.; Würfl, J.; Hsu, H.-T. Bandwidth Improvement of MMIC Single-Pole-Double-Throw Passive HEMT Switches with Radial Stubs in Impedance-Transformation Networks. Electronics 2020, 9, 270. https://doi.org/10.3390/electronics9020270
Tsao Y-F, Würfl J, Hsu H-T. Bandwidth Improvement of MMIC Single-Pole-Double-Throw Passive HEMT Switches with Radial Stubs in Impedance-Transformation Networks. Electronics. 2020; 9(2):270. https://doi.org/10.3390/electronics9020270
Chicago/Turabian StyleTsao, Yi-Fan, Joachim Würfl, and Heng-Tung Hsu. 2020. "Bandwidth Improvement of MMIC Single-Pole-Double-Throw Passive HEMT Switches with Radial Stubs in Impedance-Transformation Networks" Electronics 9, no. 2: 270. https://doi.org/10.3390/electronics9020270
APA StyleTsao, Y. -F., Würfl, J., & Hsu, H. -T. (2020). Bandwidth Improvement of MMIC Single-Pole-Double-Throw Passive HEMT Switches with Radial Stubs in Impedance-Transformation Networks. Electronics, 9(2), 270. https://doi.org/10.3390/electronics9020270