A Broadband SiGe HBT Cascode Power Amplifier Achieving Watt-Level Peak Output Power With 38.6 PAE and 90.9 Large-Signal Fractional Bandwidth

被引：10

作者：

Wan, Chuanchuan ^{[1
]}

Zhang, Hao ^{[1
]}

Zhao, Yuan ^{[1
]}

Zeng, Ming ^{[1
]}

Dong, Jiayu ^{[1
]}

Li, Ling ^{[2
]}

Wang, Keping ^{[3
]}

机构：

[1] Nanjing Res Inst Elect Technol, Integrated Circuits Div, Nanjing 210039, Peoples R China

[2] Southeast Univ, EAST Lab, Nanjing 210096, Peoples R China

[3] Tianjin Univ, Sch Microelect, EAST Lab, Tianjin 300072, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2022年 / 69卷 / 12期

关键词：

Phased-array; power amplifier (PA); SiGe; balanced; power combing; broadband; transformer; 90 degrees coupler; TRANSFORMER;

D O I：

10.1109/TCSII.2022.3206113

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 brief presents a broadband SiGe power amplifier that achieves 30.1 dBm peak PSAT, 38.6% peak power-added efficiency (PAE), 90.9% large-signal fractional bandwidth (FBW) and a 3 dB bandwidth from 5.4 to 13.8 GHz. A balanced topology with two-stage, four-way combing is utilized to achieve watt-level output power and high-power efficiency in a wide range of operating frequency. Power stage is optimized and simulated from the perspective of high output power. At the output stage, a 90 degrees coupler and two transformers are co-optimized for broadband output power combining as well as power matching. This balanced PA is implemented in a 0.13-mu m SiGe BiCMOS process with a chip area (with pads) of 2.31 mm(2).

引用

页码：4734 / 4738

页数：5

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