A Highly Linear Dual-Stage Amplifier With Beyond 1.75-THz Gain-Bandwidth Product

被引：0
|
作者：
Shivan, T. [1 ]
Hossain, M. [1 ]
Doerner, R. [1 ]
Yacoub, H. [1 ]
Johansen, T. K. [2 ]
Heinrich, W. [1 ]
Krozer, V. [1 ]
机构：
[1] Ferdinand Braun Inst FBH, D-12489 Berlin, Germany
[2] Tech Univ Denmark DTU, Dept Elect Engn, DK-2800 Lyngby, Denmark
来源：
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2021年 / 31卷 / 06期
基金：
欧盟地平线“2020”;
关键词：
Bandwidth; Gain; Linearity; Optical fiber amplifiers; DH-HEMTs; Optical variables measurement; Optical buffering; Distributed amplifier (DA); gain-bandwidth product (GBP); InP double heterojunction bipolar transistor (DHBT); monolithic microwave integrated circuit (MMIC); DISTRIBUTED-AMPLIFIER;
D O I：
10.1109/LMWC.2021.3067145
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 work reports a multipurpose highly linear ultrawideband amplifier with a gain-bandwidth product (GBP) of 1.75 THz, the highest reported in any monolithic microwave integrated circuit (MMIC) process. A transimpedance amplifier is cascaded with a distributed amplifier, emulating a receiver subsystem. Using a diamond heat spreader, to dissipate heat from transistors, the cascaded amplification subsystem can achieve very high output third-order-intercept point (OIP3) from 20 to 24 dBm when measured between 5 and 65 GHz. A small-signal average gain of 24 dB is observed over a frequency range exceeding the maximum measurable bandwidth from dc to 110 GHz. Compared with other ultrawideband MMIC amplifiers beyond 110-GHz bandwidth, the circuit offers a unique combination of high linearity (OIP3) and high gain. As a result, the cascaded amplifier is suitable for applications in optical-electrical converters, spectroscopy, and ultrawideband measurement systems in the subterahertz frequency range.
引用
收藏
页码：717 / 720
页数：4
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