A simple method based on AM-AM, AM-PM measurements and CDMA signal statistics for RF power amplifier characterization

Arno, Patrik; Launay, Frédéric; Fournier, Jean‐Michel; Grasset, J.C.

doi:10.1109/mwscas.2004.1354276

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Additionally, in the case of passive Device Under Test (DUT) on GaN, capable of high-power handling, very high input power levels are required to drive the device into its non-linear region. Most literature has focused on AM/AM and AM/PM characterization of power amplifiers (PAs), as discussed in [28,29,[31][32][33][34][35][36][37][38]. However, only a few articles deal with AM/AM characterization, and even fewer deal with AM/PM characterization of passive circuits.…”

Section: Introductionmentioning

confidence: 99%

“…Some examples are presented in [39][40][41][42][43][44][45] and [39,46,47], respectively. Specialized test benches have been developed and somehow exploited for amplifiers [28,[31][32][33][34][35][36][37]48,49], but not for passive circuits. No reported works explicitly focus on AM/PM characterization of PAS GaN HEMT circuits at such high input power (37 dBm) and frequency ranges (Ku Band, 12 GHz to 18 GHz).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

AM/AM and AM/PM Characterization of a GaN Phase and Amplitude Setting Circuit

Colangeli,

Das,

Longhi

et al. 2023

Electronics

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This contribution presents the AM/AM and AM/PM characteristics of a 6-bit Phase and Amplitude Setting Circuit realized in Gallium Nitride technology and operating at the Ku band. A test bench, based on three vector receivers and an absolute power reference, has been purposely devised to capture the deviation with respect to the linear behavior (known by the S-parameters) for both the magnitude and the phase of the vector response. The complete 64-state constellation is reported up to a 37 dBm of input power level, at which the effects of the static AM/AM and AM/PM distortion become evident, with about 3 dB of gain compression and 2.7 deg of phase conversion. The key figure of merit of the proposed test bench is the capability of operating with very high driving power levels (potentially up to 41 dBm), with possible applications in phased arrays, AESAs, and other signal conditioning systems.

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