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意法半导体的可调电容器和相关控制器旨在将无线天线调谐至特定频率。可调电容器的实现使得辐射性能(TRP&TIS)有了显著的提高,令其对外部环境几乎不敏感。

意法半导体的集成可调电容器提供了自适应射频调谐应用所需的优异射频性能、低功耗和高线性度:

无源可调谐集成电路(PTIC)的基本构件是称为Parascan™的可调谐材料,它是Paratek微波公司开发的钛酸钡锶(BST)的一种版本。


Antenna tuners portfolio

New BST capacitance controller significantly shrinks Smart Antenna Tuning Controller

Leveraging ST’s advanced 0.18 µm BCD8 process and 0.35mm-pitch flip-chip package, the STHVDAC-253C7 high-voltage BST capacitance controller is 50% smaller than its predecessor and consumes half the operating current. In addition, the new controller requires no external Schottky diode, thereby reducing the overall circuit footprint even further.
Using the STHVDAC-253C7 with STPTIC capacitors for impedance matching and frequency tuning provides stronger signal reception, fewer dropped calls, faster data rates, and longer battery life for handset users.

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