STMicroelectronics is working to help avoid dropped calls and increase battery life with a new range of highly miniaturized adaptive devices that dynamically optimize handset antenna performance.
ST's new ParaScan Tunable Integrated Capacitors (STPTIC) are electrically adjustable to maintain efficient transfer of energy from the handset amplifier to the antenna under various operating conditions.
The STPTIC helps maximize radiated RF power for better call performance, overcoming the challenges of use in multiple frequency bands. Unlike alternatives that typically contain multiple switched capacitors, the STPTIC allows capacitance to be adjusted smoothly, without steps, for greater precision.
“Our latest and most advanced STPTIC family now delivers an even more compelling option for future 4G LTE handsets, which will demand high wireless performance for reliable voice and high-speed data communications with longer battery life” said Ricardo De-Sa-Earp, Group VP and General Manager, Application-Specific Discretes& IPAD Division.
The STPTIC devices meet the demands of wireless system designers by displaying high Qfactor at frequencies up to 2.7 GHz, more than 3:1capacitance change with varying control voltage, and stable performance over the specified temperature range.
Major features of the STPTIC family includes: Range of capacitance values: 2.7 to 8.2 pF, High power capability (+36 dBm), High tuning range (3.5:1), High linearity device (IP3 > 60dB) and Compatible with ST antenna tuning circuit (STHVDAC series).
The STPTIC devices in the 6-pin microDFNand flip-chip packages are sampling now to lead customers direct from ST only, at prices starting at $0.50 and $0.48 respectively for volumes in the range of 1,000 pieces.
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