A balanced cdma2000 SiGe HBT load insensitive power amplifier

A balanced cdma2000 SiGe HBT load insensitive power amplifier
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平衡cdma2000 SiGe HBT负载不敏感功率放大器

DOI:
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发表时间:
2006
期刊:
IEEE Radio and Wireless Symposium
影响因子:
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通讯作者:
S. Scaccianoce
S. Scaccianoce
中科院分区:
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文献类型:
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作者:
G. Berretta;D. Cristaudo;S. Scaccianoce

文献摘要

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提出了一种用于cdma2000的MMIC SiGe HBT平衡功率放大器。PA提供28.5 dBm线性输出功率,相邻信道功率比ACPR低于-44 dBc,PAE为35%,增益为30 dB。得益于不使用隔离器的平衡方法,PA在4:1 VSWR负载失配下可提供26 dBm线性输出功率,增益变化为1.5 dB,功耗增加15%。该放大器采用0.25 /spl μ/m BiCMOS工艺实现。
A MMIC SiGe HBT balanced power amplifier for cdma2000 is proposed. The PA delivers 28.5 dBm linear output power with an adjacent channel power ratio ACPR below -44 dBc, a PAE of 35% and a gain of 30 dB. Thanks to the balanced approach without the use of an isolator, the PA under a 4:1 VSWR load mismatch delivers 26 dBm linear output power with a 1.5 dB gain variation and a 15% current consumption increase. The PA has been realized by using a 0.25 /spl mu/m BiCMOS technology.