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This paper proposes a design scheme of concurrent dual-band Doherty power amplifier (DPA) which can be reconfigured to two different pairs of concurrent dual bands for multiband and carrier aggregation applications. In addition to the reconfiguration of frequencies of operation, the output power back-off (OPBO) region for efficiency enhancement can also be reconfigured in this DPA. As a proof of concept,...
This paper proposes a reconfigurable and concurrent dual-band power amplifier for upcoming wireless applications such as LTE carrier aggregation. The designed power amplifier operates concurrently at 1600 MHz and 2100 MHz when the switches are OFF; whereas, when the switches are ON, the power amplifier operating frequencies shifts to 1800 MHz and 2300 MHz. Thus, the proposed power amplifier topology...
This paper presents the analysis and design of reconfigurable concurrent dual-band quarter-wave transformer using two single pole single throw Micro-Electro-Mechanical Switches. The transformer will behave as concurrent dual-band quarter-wave transmission line at 800 MHz and 1800 MHz, when both the switches are OFF; whereas, when the two switches are ON, the same quarter-wave transformer will reconfigure...
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