Nujira Ltd of Cambridge, UK, a maker of Envelope Tracking (ET)
technology, released its new “Woodstock” 16-band Multi-Mode,
Multi-Band (MMMB) ET reference design for 4G smartphone RF Front
Ends. The new reference design uses the company’s NCT-L1200 ET chip.
It covers up to 16 frequency bands from 700MHz to 2.7GHz in a PCB
area of less than 200 mm2. The company claims that it provides
multi-band 2G, 3G and 4G performance, using less PCB area and
battery power than today’s 3G smartphones.
Mobile handsets need to simultaneously support LTE, TD-LTE, WCDMA,
HSPA and GSM in one handset, while supporting an increasing number
of frequency bands. Nujira notes that LTE is today deployed
worldwide in 20 frequency bands from 700 MHz to 2.7 GHz, which each
require a dedicated PA and RF filter. Therefore, up to nine variants
of some popular smartphone models are required to cover all regions
The design’s integration reportedly reduces the need for numerous
regional product variants. The design incorporates a multi-mode,
multi-band ET Power Amplifier (PA), a broadband 2.3-2.7 GHz ET PA,
and an additional region- or operator-specific LTE ET PA.
Tim Haynes, CEO, Nujira stated, “Our new reference design
provides vendors with a rapid solution for single-SKU global 4G
handsets which can beat today’s 3G phones on cost, size, RF
performance and power consumption.”