Avago Technologies, a supplier of analog interface components for wireless, wireline and industrial applications, has announced design wins for multiple products based on their Film Bulk Acoustic Resonator (FBAR) filter technology for use in avoiding interference in multi-band smart phones operating in areas of “congested spectrum.”
According to Bryan Ingram, Sr. Vice President and General Manager of Avago Wireless Semiconductor Division, the FBAR filter technology has been a success for the company. “Three years ago, when most applications were 3G based, only 4-5 different bands benefited from using FBAR filtering.” He adds that as more wireless carriers begin to adopt 4G/LTE, filter specifications are becoming increasingly more stringent. In an effort to fulfill this demand, Avago now supports “as many as 15 different frequency bands with FBAR products.”
Avago offers several filters for various applications in different industries. The Avago ACMD-6107 duplexer provides protection to allow operation on closely-located Wi-Fi channels without interference. The combination of a roll-off FBAR duplexer with a highly linear power amplifier in an integrated Front End Module (FEM) also created a product designed to allow B13 handsets to operate at full power without interfering with PSR operation. Other FBAR filters are also designed for use in the 700 MHz bands and the AWS spectrum as well as at higher frequencies.
