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

Archive ouverte : Communication dans un congrès

Schoch, B. | Tessmann, A. | Leuther, A. | Szriftgiser, P. | Ducournau, Guillaume | Kallfass, I.

Edité par HAL CCSD ; Institute of Electrical and Electronics Engineers Inc.

International audience. 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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