Broadband GaN-Based Switch-Mode Core MMICs with 20 W Output Power Operating at UHF
Broadband GaN-Based Switch-Mode Core MMICs with 20 W Output Power Operating at UHF
复制标题
基于 GaN 的宽带开关模式核心 MMIC，在 UHF 下工作时具有 20 W 输出功率
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
O. Ambacher
中科院分区：
文献类型：
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作者：
S. Maroldt;R. Quay;C. Haupt;O. Ambacher
一种高功率宽带开关模式核心MMIC已经被开发用于数字开关模式功率放大器中的应用，例如，S类，用于移动的通信。三级设计可以灵活地用于UHF频段的任何工作频率，最高数字比特率为3 Gbps，相当于1.5 GHz的方波频率。在0.9 Gbps的最大宽带输出功率为20.5 W时，测得的漏极效率为76%，功率附加效率为70%。在峰峰值为3.5 V的数字信号控制下，实现了25.3 dB的大信号增益。
A high power broadband switch-mode core MMIC has been developed for an application in digital switch-mode power amplifiers, e.g., class S, for mobile communications. The three-stage design can be flexibly used at any frequency operating in UHF band up to a maximum digital bit rate of 3 Gbps, equal to a square wave frequency of 1.5 GHz. At 0.9 Gbps a maximum broadband output power of 20.5 W was measured at a drain efficiency of 76% and a power added efficiency of 70%. Controlled by a digital signal with a peak-to-peak amplitude of 3.5 V, a large signal gain of 25.3 dB was achieved.