A comprehensive explanation of distortion sideband Asymmetries

被引：138

作者：

de Carvalho, NB ^{[1
]}

Pedro, JC ^{[1
]}

机构：

[1] Univ Aveiro, Inst Telecommun, P-3810193 Aveiro, Portugal

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2002年 / 50卷 / 09期

关键词：

amplifier distortion; describing functions; multitone signals; nonlinear circuits; Volterra series;

D O I：

10.1109/TMTT.2002.802321

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：

This paper presents a comprehensive study of intermodulation-distortion response asymmetries often observed in microwave nonlinear systems subject to a two-tone or multitone test. The reasons for the different amplitudes of the two adjacent tones are first investigated under small- and large-signal regimes, using a general circuit with frequency-dependent embedding impedances and resistive and reactive nonlinearities. It is shown that this intriguing phenomenon can be mainly attributed to the terminating impedances at the baseband or difference frequencies. Multitone behavior is also addressed and its main differences from the two-tone case explained. Those theoretical conclusions are then extrapolated for real circuits and validated by measured results obtained from microwave power amplifiers of two different technologies, i.e., a GaAs MESFET and an Si bipolar junction transistor.

引用

页码：2090 / 2101

页数：12

共 18 条

[1]

Aparin V, 1999, IEEE MTT S INT MICR, P977, DOI 10.1109/MWSYM.1999.779549

[2] ANALYSIS AND DESIGN OF MICROWAVE LINEARIZED AMPLIFIERS USING ACTIVE FEEDBACK [J].

BALLESTEROS, E ;

PEREZ, F ;

PEREZ, J .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1988, 36 (03) :499-504

[3] MEASUREMENT AND SIMULATION OF MEMORY EFFECTS IN PREDISTORTION LINEARIZERS [J].

BOSCH, W ;

GATTI, G .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1989, 37 (12) :1885-1890

[4] Large- and small-signal IMD behavior of microwave power amplifiers [J].

de Carvalho, NB ;

Pedro, JC .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (12) :2364-2374

[5] Multitone frequency-domain simulation of nonlinear circuits in large- and small-signal regimes [J].

de Carvalho, NB ;

Pedro, JC .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (12) :2016-2024

[6]

de Carvalho NB, 2001, IEEE MTT S INT MICR, P455, DOI 10.1109/MWSYM.2001.966929

[7] Characterizing the gate-to-source nonlinear capacitor role on GaAs FET IMD performance [J].

García, JA ;

Sánchez, AM ;

Pedro, JC ;

de Carvalho, NB ;

Puente, AT ;

García, JL .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1998, 46 (12) :2344-2355

[8]

Kenington P.B., 2000, ARTECH MICR, P21

[9]

Lu K, 1996, IEEE MTT-S, P1373, DOI 10.1109/MWSYM.1996.512191

[10] INTERMODULATION IN HETEROJUNCTION BIPOLAR-TRANSISTORS [J].

MAAS, SA ;

NELSON, BL ;

TAIT, DL .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1992, 40 (03) :442-448

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