ST’s antenna tuners and tunable capacitors offer high quality and high reliability based on a ferroelectric material composed of baryum strontium and titanate (BST). The adoption of this new tunable material is a breakthrough that enables RF tunable technology to serve the mobile wireless market.
ST markets three product series, derived from its tunable technology:
- Discrete tunable capacitors : the STPTIC devices
- Complete antenna tuner modules : the STRAFT devices, made of tunable capacitors, combined with high-Q inductor and assembled into LGA modules
- Tuning ciruits: the STHVDAC devices, capable of driving both STPTIC and STRAFT devices. These antenna tuning circuits can be controlled via SPI or the new radio-frequency front-end (RFFE) interface developed by the MIPI Alliance
Smart Antenna Tuning with STMicroelectronics (all LTE bands)
Antenna desense medication with ECMF™ common-mode filters integrating ESD protection
STHVDAC, STPTIC: better sensitivity and longer battery life
New BST capacitance controller significantly shrinks Smart Antenna Tuning Controller
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.