Low harmonic distortion in a Josephson arbitrary waveform synthesizer

被引：50

作者：

Benz, SP ^{[1
]}

Burroughs, CJ ^{[1
]}

Dresselhaus, PD ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Boulder, CO 80303 USA

来源：

APPLIED PHYSICS LETTERS | 2000年 / 77卷 / 07期

关键词：

D O I：

10.1063/1.1288597

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The use of broadband integrated filters has enabled practical operating margins for ac waveforms synthesized from the perfectly quantized voltage pulses of Josephson junction arrays. This improvement enabled the digital synthesis of arbitrary waveforms with low harmonic distortion; the second and higher harmonics are all at least 94 dB below the fundamental [-94 dBc (carrier)]. This is a 47 dB lower distortion compared to that of the same sine wave synthesized by the semiconductor-based code generator which drives the array. We present operating margins for synthesized dc voltages and demonstrate synthesized waveforms with multiple tones at kilohertz and megahertz frequencies with harmonic distortion and intermodulation products below -80 dBc. [S0003-6951(00)00133-9].

引用

页码：1014 / 1016

页数：3

共 6 条

[1] AC and DC bipolar voltage source using quantized pulses [J].