Doug Lung / RF Report
06.05.2014 11:40 AM
Freescale Claims New Amp Is More Than 50 Percent Efficient
300 Watt UHF amplifier uses Doherty LDMOS technology
Among the new device announcements resulting from this week's International Microwave Symposium in Tampa Bay, Fla. was one from Freescale which touted its Airfast LDMOS power devices' ability to break the 50 percent Doherty efficiency barrier.
One of the initial second-generation Airfast products is the A2T07H310-24S 300 Watt asymmetrical Doherty transistor for wireless infrastructure applications in the 720-960 MHz band. Freescale said the device breaks the 50 percent efficiency barrier at 8 dB back-off with 55 dBm peak power (316 Watts) and 18.9 dB gain.
The Freescale news release said: "Additionally, second-generation Airfast power amplifiers expand the portfolio’s breadth to include two-stage integrated circuits, incorporating multiple gain stages in a single package; as well as adding new offerings based on gallium nitride (GaN) and 48V LDMOS process technology."
For more information on Freescale power devices, including devices for VHF/UHF broadcasting, see the Freescale RF Power product page.

Post New Comment
If you are already a member, or would like to receive email alerts as new comments are
made, please login or register.

Enter the code shown above:

(Note: If you cannot read the numbers in the above
image, reload the page to generate a new one.)

No Comments Found

Tuesday 06:00 AM
Eleven FCC Scenarios for The 600 MHz Band Plan
I suspect that the estimated $44 billion of auction proceeds do not take into account the fact that some spectrum the FCC will buy cannot be resold because it must be used as guard intervals in the 600 MHz band plan.~ Charles W. Rhodes

Zazil Media Group /   Thursday 11:07 AM
NAB 2015 Preview: Dalet Spearheads the Facility of the Future
Wall Street Communications /   Thursday 07:36 PM
Digital Alert Systems 2015 NAB Show Preview

Featured Articles
Discover TV Technology