| Citation: |
Li Qin, Wang Zhigong, Li Wei. Design of 20–44 GHz broadband doubler MMIC[J]. Journal of Semiconductors, 2010, 31(4): 045012. doi: 10.1088/1674-4926/31/4/045012
Li Q, Wang Z G, Li W. Design of 20–44 GHz broadband doubler MMIC[J]. J. Semicond., 2010, 31(4): 045012. doi: 10.1088/1674-4926/31/4/045012.
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Design of 20–44 GHz broadband doubler MMIC
doi: 10.1088/1674-4926/31/4/045012
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Abstract
This paper presents the design and performance of a broadband millimeter-wave frequency doubler MMIC using active 0.15 μm GaAs PHEMT and operating at output frequencies from 20 to 44 GHz. This chip is composed of a single ended-into differential-out active Balun, balanced FETs in push-push configuration, and a distributed amplifier. The MMIC doubler exhibits more than 4 dB conversion gain with 12 dBm of output power, and the fundamental frequency suppression is typically??20 dBc up to 44 GHz. The MMIC works at VDD = 3.5 V, VSS =-3.5 V, Id = 200 mA and the chip size is 1.5×1.8 mm2.-
Keywords:
- frequency doubler,
- active Balun,
- distributed amplifier
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References
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