Qualcomm Technologies, in addition to , introduced the pioneering ultraSAW RF filter technology for 4G/5G mobile devices. It significantly improves RF performance in the ranges up to 2,7 GHz and, according to the manufacturer, outperforms competitors in terms of parameters and cost.
Radio frequency (RF) filters separate radio signals in various ranges used in mobile phones to receive and transmit information. By reducing insertion loss by at least 1dB, Qualcomm ultraSAW filters for surface acoustic waves (SAW) are more efficient than competing solutions - filters based on bulk acoustic waves (BAW) in the range up to 2,7 GHz.
Qualcomm ultraSAW features high filtering performance in the 600 MHz - 2,7 GHz band, and is characterized by the advantages of:
- very good selection of received and transmitted signals and crosstalk suppression;
- high frequency selectivity;
- quality factor up to 5000 - significantly higher than that of competing OAW filters;
- very low insertion loss;
- high temperature stability with very low temperature drift of the order of x10-6/deg. TO.
The technology allows manufacturers to improve the energy efficiency of multi-mode 5G and 4G devices while lowering costs compared to competitive solutions with similar specifications. As a result of the application of technology, smartphones will work autonomously longer, and the quality of communication will increase. Production of Qualcomm's ultraSAW family of discrete and integrated products will begin in the current quarter, and the first flagship devices based on it will appear in the second half of 2020.
Qualcomm ultraSAW is a key technology to further enhance the performance of the company's portfolio of RFFE products and Snapdragon 5G Modem-RF modem systems. Qualcomm ultraSAW technology is used in power amplification modules (PAMiD), front end modules (FEMiD), diversity modules (DRx), Wi-Fi extractors, navigation signal extractors (GNSS extractors) and RF multiplexers.
Source: 3dnews.ru