Eindhoven, The NetherlandsRoyal Philips Electronics announced a family of advanced, bulk acoustic wave (BAW) filters and duplexers that are designed to improve the performance of multimedia mobile phones. The BAW filters feature patented reduced form factor chip-scale packaging technology. This improves the performance and reception of GSM and 3G mobile phones, while reducing space in mobile handset designs.
"BAW is one of the most significant developments in filter design in recent years," said Scott Smyser, director and principal analyst, wireless and networking communications for the market research firm, iSuppli Corp. in El Segundo, Calif. "BAW filters outperform SAW and dielectric filters to offer smaller size, reduced in-band insertion loss and increased steepness of the filter skirts in lower and upper transition bands."
The filters are optimized for use in 1900 MHz US PCS (W-)CDMA, UMTS, and Bluetooth/WLAN systems. Specifications include:
- 3.5-dB max transmit insertion loss (1850 to 1910 MHz)
- 3.80-dB max receive insertion loss (1930 to 1990 MHz)
- 8-dB minimum return loss
The BAW filters (BWT190A) and duplexers (BWD190A) for US PCS 1900 MHz will be sampling in Q3 2005 with volume production planned for Q4 2005. The BWT190A is priced at USD $0.50 in quantities of 100,000 pieces. The BWD190A is priced at USD $2.20 in quantities of 100,000 pieces.
Royal Philips Electronics, www.semiconductors.philips.com