- Efficiency Enhancement of Doherty Amplifier Through Mitigation of the Knee Voltage Effect
[作者:Moon, J; Kim, J; Kim, J; Kim, I; Kim, B,期刊:IEEE Transactions on Microwave Theory and Techniques, 页码:143-152 , 文章类型: Article,,卷期:2011年59-1]
- This paper presents an approach to maximize the efficiency of a Doherty power amplifier (PA) with the knee voltage effect. Since the carrier PA with 2R(opt), which is the usual matching impedance for a carrier PA at a lo...
- Modeling and Design Methodology of High-Efficiency Class-F and Class-F-1 Power Amplifiers
[作者:Kim, JH; Do Jo, G; Oh, JH; Kim, YH; Lee, KC; Jung, JH,期刊:IEEE Transactions on Microwave Theory and Techniques, 页码:153-165 , 文章类型: Article,,卷期:2011年59-1]
- In this paper, efficiency-limiting physical constraint effects imposed on the knee voltage, along with a variation of the optimum load resistance, are investigated for highly efficient Class-F and Class-F-1 amplifiers. F...
- Design and Performance of a 600-720-GHz Sideband-Separating Receiver Using AlOx and AlN SIS Junctions
[作者:Mena, FP; Kooi, JW; Baryshev, AM; Lodewijk, CFJ; Zijlstra, T; Hesper, R; Gerlofsma, G; Klapwijk, TM; Wild, W,期刊:IEEE Transactions on Microwave Theory and Techniques, 页码:166-177 , 文章类型: Article,,卷期:2011年59-1]
- We present the design, modeling, construction, and characterization of a sideband separating heterodyne receiver that covers the frequency range from 600 to 720 GHz. The receiver has been constructed using waveguide tech...
- A Compact Variable-Temperature Broadband Series-Resistor Calibration
[作者:Orloff, ND; Mateu, J; Lewandowski, A; Rocas, E; King, J; Gu, DZ; Lu, XL; Collado, C; Takeuchi, I; Booth, JC,期刊:IEEE Transactions on Microwave Theory and Techniques, 页码:188-195 , 文章类型: Article,,卷期:2011年59-1]
- We present a broadband on-wafer calibration from 45 MHz to 40 GHz for variable temperature measurements, which requires three standards: a thru, reflect, and series resistor. At room temperature, the maximum error of thi...
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