A digitally controlled power amplifier with neutralization capacitors for Zigbee™ applications

Fei Jia; Shengxi Diao; Xuejuan Zhang; Zhongqian Fu; Fujiang Lin

doi:10.1088/1674-4926/33/12/125002

A digitally controlled power amplifier with neutralization capacitors for Zigbee™ applications

Fei Jia, Shengxi Diao, Xuejuan Zhang, Zhongqian Fu, Fujiang Lin

University of Science and Technology of China

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

This paper presents a single chip CMOS power amplifier with neutralization capacitors for Zigbee™ system according to IEEE 802.15.4. A novel structure with digital interface is adopted, which allows the output power of a PA to be controlled by baseband signal directly, so there is no need for DAC. The neutralization capacitors will increase reverse isolation. The chip is implemented in SMIC 0.18 μm CMOS technology. Measurement shows that the proposed power amplifier has a 13.5 dB power gain, 3.48 dBm output power and 35.1% PAE at P_1dB point. The core area is 0.73 × 0.55 mm ².

Original language	English
Article number	125002
Journal	Journal of Semiconductors
Volume	33
Issue number	12
DOIs	https://doi.org/10.1088/1674-4926/33/12/125002
State	Published - Dec 2012
Externally published	Yes

Keywords

CMOS
Zigbee™
digital control
neutralization
power amplifier

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10.1088/1674-4926/33/12/125002

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title = "A digitally controlled power amplifier with neutralization capacitors for Zigbee{\texttrademark} applications",

abstract = "This paper presents a single chip CMOS power amplifier with neutralization capacitors for Zigbee{\texttrademark} system according to IEEE 802.15.4. A novel structure with digital interface is adopted, which allows the output power of a PA to be controlled by baseband signal directly, so there is no need for DAC. The neutralization capacitors will increase reverse isolation. The chip is implemented in SMIC 0.18 μm CMOS technology. Measurement shows that the proposed power amplifier has a 13.5 dB power gain, 3.48 dBm output power and 35.1\% PAE at P1dB point. The core area is 0.73 × 0.55 mm 2.",

keywords = "CMOS, Zigbee{\texttrademark}, digital control, neutralization, power amplifier",

author = "Fei Jia and Shengxi Diao and Xuejuan Zhang and Zhongqian Fu and Fujiang Lin",

year = "2012",

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T1 - A digitally controlled power amplifier with neutralization capacitors for Zigbee™ applications

AU - Jia, Fei

AU - Diao, Shengxi

AU - Zhang, Xuejuan

AU - Fu, Zhongqian

AU - Lin, Fujiang

PY - 2012/12

Y1 - 2012/12

N2 - This paper presents a single chip CMOS power amplifier with neutralization capacitors for Zigbee™ system according to IEEE 802.15.4. A novel structure with digital interface is adopted, which allows the output power of a PA to be controlled by baseband signal directly, so there is no need for DAC. The neutralization capacitors will increase reverse isolation. The chip is implemented in SMIC 0.18 μm CMOS technology. Measurement shows that the proposed power amplifier has a 13.5 dB power gain, 3.48 dBm output power and 35.1% PAE at P1dB point. The core area is 0.73 × 0.55 mm 2.

AB - This paper presents a single chip CMOS power amplifier with neutralization capacitors for Zigbee™ system according to IEEE 802.15.4. A novel structure with digital interface is adopted, which allows the output power of a PA to be controlled by baseband signal directly, so there is no need for DAC. The neutralization capacitors will increase reverse isolation. The chip is implemented in SMIC 0.18 μm CMOS technology. Measurement shows that the proposed power amplifier has a 13.5 dB power gain, 3.48 dBm output power and 35.1% PAE at P1dB point. The core area is 0.73 × 0.55 mm 2.

KW - CMOS

KW - Zigbee™

KW - digital control

KW - neutralization

KW - power amplifier

UR - https://www.scopus.com/pages/publications/84871393951

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DO - 10.1088/1674-4926/33/12/125002

M3 - 文章

AN - SCOPUS:84871393951

SN - 1674-4926

VL - 33

JO - Journal of Semiconductors

JF - Journal of Semiconductors

IS - 12

M1 - 125002

ER -

A digitally controlled power amplifier with neutralization capacitors for Zigbee™ applications

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Keywords

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