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Two-tone intermodulation performance of a 300GHz power amplifier MMIC

Abstract : Intermodulation effects play a decisive role in any system relying on the linear transmission of signals, such as highspeed wireless communication. For the first time, this paper presents measured third-order and fifth-order intermodulation performance of a 300GHz monolithic integrated circuit with a new photonic approach. Conventional amplifier characterization in this frequency range showed a small-signal gain of more than 15dB, operating frequency range from 279 to 313GHz, and a 1dB compression point and saturated output power of 1.6dBm and 6dBm, respectively, from a one-tone power sweep. Using a novel photonic-based measurement setup, the amplifiers' output-related IP3 and IP5 are measured to 13dBm and 11dBm, respectively. The two-tone measurement uses the photonic mixing of three laser lines to generate the two-beat frequencies at 299 and 301GHz.
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Submitted on : Friday, October 1, 2021 - 4:50:17 PM
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B. Schoch, A. Tessmann, A. Leuther, P. Szriftgiser, G. Ducournau, et al.. Two-tone intermodulation performance of a 300GHz power amplifier MMIC. 2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021, Jan 2021, San Diego, CA, United States. pp.16-19, ⟨10.1109/PAWR51852.2021.9375586⟩. ⟨hal-03362257⟩



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