Generally, radio frequency (RF) modules in handsets face various challenges due to long term evolution (LTE (News - Alert)) networks. To address this issue, manufacturers use Envelope Tracking (ET) technique, which removes space and power problems in power amplifiers (PAs), as this technique replaces fixed dc supply voltage to the RF PA with a very high-bandwidth dynamic supply voltage.
With an objective to be at the forefront of the ET revolution, RFMD (News - Alert), a designer and manufacturer of high-performance RF solutions, has rolled-out many ET PAs till date.
In addition, the company has also experienced strong market acceptance of its ET PAs that consume up to 25 percent less current in latest long term evolution (LTE) platforms.
Continuing this legacy, RFMD has started high-volume production of multiple new PAs and power management integrated circuits (ICs) that incorporate the company’s ET technology.
Customized for latest leading LTE chipsets, RFMD's expanding ET product portfolio includes its RF7389 and RF8085 multimode, multi-band PAs, the RF80xx family of 10 single-band satellite PAs, and its RF8081 ET power management IC, cites a press release.
The ET product portfolio offers complete ET compatible coverage of all FD-LTE and TD-LTE bands (1-14, 17-21, 25-28, 38, 40, 41, and 44).
According to RFMD, its ET technology helps in improving power efficiency in new LTE platforms. This offers: enhanced battery life irrespective of all modes and bands; increased network coverage; and higher data rate throughput.
Eric Creviston, president of cellular products group, RFMD, said in a statement, "This volume ramp-up of a broad family of envelope tracking-enabled products puts RFMD at the forefront of the ET revolution and is a testament to the market success of our technology, which is very well suited for the power demands of new LTE platforms now being rolled out across the globe."
Creviston added, "RFMD is very well positioned with power management technologies such as envelope tracking and average power tracking to expand our RF content in the newest generation of smartphones, tablets, ultrabooks and machine-to-machine (M2M) applications."
Currently, RFMD's portfolio facilitates worldwide mobility, provides enhanced connectivity, and supports advanced functionality in the mobile device, wireless infrastructure, wireless local area network (WLAN or Wi-Fi), cable television (CATV)/broadband, smart energy/advanced metering infrastructure (AMI), and aerospace and defense markets.
Edited by Ryan Sartor