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Two compact switchless dual-band load networks for class-E power amplifier (PA) operating at 800 and 1900 MHz are proposed, featuring small area and low loss which will be suitable for non-concurrent dual-band PA module in handset. Theoretical analysis and design equations are provided along with a loss model, including loss in the transistor and in the load network. Loss model is extracted for each...
This paper presents two different switchless (concurrent) dual-band load networks for class E power amplifier at 800 MHz and 1.9 GHz for 4G LTE standards. The two presented load structures, the all-lumped element and the transformer-based structure not only provide optimal impedance at both fundamental frequencies but also present high impedance up to their 3rd harmonics. Simulated PAEs for the all-lumped...
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