Murata : Bluetooth and WiFi SAW filter has high power capability

The latest advances in Murata’s filter technology have led to development of a new SAW filter whose high power capability means it can be used as a top filter, replacing two interstage filters with a single component. In addition, the filter’s external matching circuit requires just two inductors. This overall reduction in component count minimises a design’s bill of materials and will be of particular benefit to OEMs making wireless consumer devices such as mobile phones.

The new SAW filter (part number SAFEA2G45AC0F00) has a nominal centre frequency of 2450MHz, suitable for Bluetooth and WiFi systems. Its high power capability means it can be used directly after the power amplifier, replacing two separate interstage filters in the transmit and receive paths. The resulting reduction in component count simplifies the design, lowers cost and saves space.

The filter can handle input signal levels of +27dBm for 500 hours at up to 85°C, or +24dBm for 5000 hours at up to 85°C. Voltage standing wave ratio (VSWR) is typically 1.4, with insertion loss typically 1.7 dB. Operating temperature is -30 to +85°C.

For further information and reader enquiries:
Aya Tonooka, Murata Electronics (UK) Ltd., Oak House, Ancells Road, Ancells Business Park, Fleet, Hampshire  GU51 2QW , United Kingdom
Tel: +44 (0) 1252 811666
Fax: +44 (0) 1252 811777
E-mail: ayatonooka@murata.co.uk
Web: www.murata.eu

About Murata

Murata is a leading manufacturer of electronics components, modules, and devices. The complete range of this Ceramics Technology house includes ceramic capacitors, resistors/thermistors, inductors/chokes, ceramic resonators, buzzers, sensors and EMI suppression filters. Whilst the company gets 40% of its revenue from its ceramic capacitor products, it is also the world leader in Bluetooth & WiFi Modules, and a key manufacturer of power supplies. Murata also designs and manufactures mobile handset antenna families, piezoelectric actuators for fuel injection systems, short focal length ceramic lenses and speaker products.

Established in 1944, Murata is headquartered in Japan and has European offices in Germany, the Netherlands, the UK, Switzerland, Italy, France, Spain, Denmark, Sweden, Finland and Hungary.