WiSpry Inc., Irvine, CA, offers its WS1033 LTE antenna tuner that lets you select the optimum circuit configuration for antenna tuning. The company has used the RF MEMS-based antenna tuner to successfully extend usable bandwidth on an LTE smartphone from 25 MHz to 180 MHz without changing the production antenna. In a demonstration involving two identical, commercially available LTE phones, the company modified one phone with the WS1033-based antenna tuning network and left the other phone unmodified. The modified phone had a 180 MHz usable bandwidth. The device features both an MIPI Alliance RFFE 1.1 interface and a 3/4-wire SPI interface.