Combined Wideband Active Load-Pull and Modulation Distortion Characterization with a Vector Network Analyzer

被引：6

作者：

Angelotti, Alberto M. ^{[1
]}

Gibiino, Gian Piero ^{[1
]}

Santarelli, Alberto ^{[1
]}

Nielsen, Troels S. ^{[2
]}

Verspecht, Jan ^{[2
]}

机构：

[1] Univ Bologna, Dept Elect Elect & Informat Engn, Bologna, Italy

[2] Keysight Technol Inc, Commun Solut Grp, Santa Rosa, CA USA

来源：

97TH ARFTG MICROWAVE MEASUREMENT CONFERENCE: CONDUCTED AND OTA MEASUREMENT CHALLENGES FOR URBAN, RURAL & SATCOMM CONNECTIVITY | 2021年

关键词：

Load-pull; power amplifiers; error-vector magnitude; modulated signals;

D O I：

10.1109/ARFTG52261.2021.9639924

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a demonstrator set-up for amplifier error-vector magnitude (EVM) characterization in the presence of wideband load termination arbitrarily set by the user through active modulated signal injection. In the proposed implementation, both the EVM characterization and the wideband active load-pull (WALP) technique are solely based on iso-frequency ratioed measurements obtainable with legacy vector network analyzer (VNA) technology. By avoiding broadband signal demodulation, this approach allows to remove any receiver bandwidth limitation, thus enhancing measurement accuracy and enabling realistic modulation distortion assessment across arbitrarily-wide test bandwidths. The method is tested on a packaged power amplifier circuit for 5 and 30 MHz modulation bandwidths around 1.2 GHz.

引用

页数：4

共 11 条

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[3]

Angelotti AM, 2018, IEEE MTT S INT MICR, P1021, DOI 10.1109/MWSYM.2018.8439845

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