Greensboro, N.C. -- RFMD has launched its first impedance tuner, the RF1105, which offers a broad antenna impedance tuning range to optimize efficiency in LTE and HSPA+ cellular devices. The programmable RF1105 functions as a tuner sub-system across all LTE frequency bands up to 2.7GHz, providing antenna feed matching over a wide frequency range. "This simplifies antenna design and enables smartphone and mobile device OEMs to optimize antenna power and sensitivity while also maximizing battery life," said the company.
Due to its unique topology, the RF1105 offers broad symmetric tuner gain and linear performance for optimal power transfer to the antenna, said RFMD, which is said to improve total system efficiency even under the most adverse operating conditions in multi-band LTE and HSPA+ applications. The impedance tuners provide a dynamic matching environment and can be programmed to offer optimal performance across multiple conditions and usage cases, said RFMD.
Like RFMD's antenna tuners, its impedance tuners improve RF system efficiency between the transceiver and the antenna element. While the antenna tuners optimize radiated efficiency by adjusting or tuning an antenna's resonant frequency, the impedance tuners optimize power transfer to the antenna. With the RF1105, smartphone OEMs can design antennas for optimal radiated efficiency while also reducing the potential tradeoffs associated with fixed matching components, said RFMD.
Along with the antenna tuners and impedance tuners, RFMD offers a portfolio of antenna control solutions including high-performance routing switches that optimize antenna selection and control, and improve cellular data throughput rates.
Availability: The RF1105 is sampling now with lead customers. Volume production is expected to begin in the first quarter of 2014.