Description

Dynamic transmit-power control is critical for improving spectral efficiency and reducing adjacent channel interference in wireless local area networks (WLANs). In addition: regulatory agencies worldwide require that transmit power be limited to a certain level to reduce interference with other communication equipment. Another benefit of transmit power control in WLAN systems is to prolong battery life by reducing power-supply voltage to the power amplifier. This reference design is a closed-loop dynamic transmit power control for WLAN application. Although this particular design implements WLAN transmit power control: similar concepts can be used to implement power control schemes for other wireless technologies: such as LTE.Applications for transmit power control span a very wide range: from mobile handheld devices to industrial to automotive applications. For example: LMH2110 can be employed in automotive electronics to satisfy transmit power control needs of LTE or WiFi communication systems.