A matching circuit tuned, multi-band (WLAN and WiMAX), Class — a power amplifier using 0.25μm-SiGe HBT technology

2008 Ph.D. Research in Microelectronics and Electronics Pub Date : 2008-08-12 DOI:10.1109/RME.2008.4595752

M. Kaynak, I. Tekin, Y. Gurbuz

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引用次数: 5

Abstract

In this work, a MOS based output matching network is designed and fabricated using IHP (innovations for high performance), 0.25 mum-SiGe HBT process and measured which can give 4 different impedance values. Also, a multi-band, Class-A, power amplifier (PA) has been designed with same technology and the desired output impedances for matching network are taken from the load-pull simulation results of this PA. The behavior of the amplifier has been optimized for 2.4 GHz (WLAN), 3.6 GHz (UWB-WiMAX) and 5.4 GHz (WLAN) frequency bands for high output power. Multi-band characteristic of the amplifier was obtained by using MOS based switching network. Two MOS switches are used for changing the behavior of the matching network and 4 possible states are achieved. Post-Layout simulation results of the PA circuit provided the following performance parameters: output power of 28-dBm, gain value of 26-dB and efficiency value of %19 for the 2.4 GHz WLAN band, output power of 28-dBm, gain value of 22-dB and efficiency value of %20 for the 3.6 GHz UWB-WiMAX band, and output power of 27-dBm, gain value of 23-dB and efficiency value of %17 for the 5.4 GHz WLAN band.

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匹配电路调谐，多频段(WLAN和WiMAX)， A级功率放大器，采用0.25μm-SiGe HBT技术

在这项工作中，使用IHP(高性能创新)，0.25 μ m- sige HBT工艺设计和制造了基于MOS的输出匹配网络，并对其进行了测量，可以给出4个不同的阻抗值。采用相同的技术设计了一种多频段a类功率放大器，并根据该功率放大器的负载-拉仿真结果得到了匹配网络所需的输出阻抗。放大器的性能在2.4 GHz (WLAN)， 3.6 GHz (UWB-WiMAX)和5.4 GHz (WLAN)频段进行了优化，以获得高输出功率。利用基于MOS的开关网络实现了放大器的多频段特性。两个MOS开关用于改变匹配网络的行为，实现了4种可能的状态。布局后仿真结果显示:2.4 GHz WLAN频段输出功率28-dBm，增益26-dB，效率%19;3.6 GHz UWB-WiMAX频段输出功率28-dBm，增益22-dB，效率%20;5.4 GHz WLAN频段输出功率27-dBm，增益23-dB，效率%17。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2008 Ph.D. Research in Microelectronics and Electronics

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