The players contributing to the small cell power amplifier
market include TekTelic Communication Inc.; Skyworks Solution; RFHIC Corp; Qorvo Inc.; Anadigics Inc.; Broadcom Corporation; Texas Instruments; and NXP Semiconductors.
The previous world record for power amplifier
output density in the W-band for transmitters was 3.6 watts per millimeter of gate width with technology developed by Fujitsu Laboratories.
The broadband power amplifier
was implemented on a Rogers substrate with the dielectric constant of 3.66 and thickness of 0.762 mm, as shown in Figure 8.
(2015) High-Efficiency Harmoic-Peaking Class-EF Power Amplifiers
with Enhanced Maximum Operating Frequency.
In this study, we proposed a mode-locking technique for a cascode CMOS power amplifier
. Using the drain voltage of a common-source transistor as the input of the cross-coupled transistor, the time delay between the common-source and cross-coupled transistors was minimized to maximize the advantage of the mode-locking technique.
The characteristic impedances of the offset lines and the phase compensation lines of the proposed conventional Doherty power amplifier
are all 50[ohm], the widths are 1.69mm (66.37mil).
In general, the power stage of the switching-mode power amplifier
is designed using class-E or class-F types so as to obtain watt-level output power .
Jeonghyeon, "The Doherty power amplifier
," IEEE Microwave Magazine, Vol.
To maximize efficiency, modern wide-band power amplifiers
must operate in a nonlinear region.
ParkerVision is offering two families of RF power amplifier
products - the vector power amplifier
(VPA) and digital power amplifier
Over the years, tutorials have appeared in EMC journals explaining how to estimate the power required from a power amplifier
intended for use in an RF immunity test system.
Other applications include power amplifier
biasing for RF, audio and amplifiers that require gain or phase control.