Chip Filters for Cellular Band Applications

TaiyoYuden's latest lines of chip filtersoptimize the performance, while minimizing the size, of mobile phones. Thecompact EIA 0603 size multilayer dual low pass filter is designed for use withmulti-band smartphones, while two new optimized EIA 0805 size multilayerdiplexers were developed for use with mobile phones. Taiyo Yuden chip filtersfor the cellular band field are based on experience with and development ofmultilayer filters and chip antennas for non-cellular band applications, suchas wireless LAN, Bluetooth and GPS.

The EIA 0603 size dual low pass filter F1168D087018 measures 1.6 x 0.8 mm witha maximum height of 0.45 mm and two differing frequency band low pass filters(the GSM telecommunication standard low band and a high band) are combined intoa single part. This reduction in parts and surface mount area contribute to asmaller overall device size. Smartphones equipped with dual low pass filtertechnology meet the wireless communication standards that are required toachieve high-speed data transmission.

The EIA 0805 size F1212P089208 and F1212P089213 (2.0 x 1.25 x 0.90 mm each)multilayer diplexers are optimized for the RF send/receive systems ofmulti-band mobile phones. To meet the growing demand for multiple frequencyband support, a multi-antenna method is often utilized. Two antennas fordifferent frequency bands are used for sending and receiving RF signals, with adiplexer that performs the required multiplexing and de-multiplexingoperations. This often results in a higher component count and increasedmounting space requirements.

For more detailed specifications, click here for the F1168D087018, click here for the F1212P089208 and click here for the F1212P089213.

Chip Filters for Cellular Band Applications