F5QA836M5M2AR-J Filters

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SAW Filters

Surface Acoustic Wave (SAW) filters are used in various electronic devices such as mobile phones, radios, and television sets to separate desired radio frequency signals from unwanted frequency signals, as well as to reduce unwanted noise. SAW filters have been widely used in consumer electronics, telecommunication fields, and commercial integrated circuits since they offer a wide variety of advantages which include low insertion loss, high reliability, and quick response time.

The F5QA836M5M2AR-J SAW filter is a digitally-controlled annular ring filter with a frequency band ranging from 5.8 to 7.2GHz. It is designed to provide an additional level of performance, reliability, and flexibility for the system designer. The F5QA836M5M2AR-J filter has a low insertion loss, high linearity, and fast settling time with an adjustable center frequency.

The F5QA836M5M2AR-J filter is composed of two small circular structures, the Radiating Element (RE) and the Absorbing Element (AE). The RE is composed of a metal ground plate and a two-dimensional array of metal lines etched into a thin film of quartz with thin gold layers between the lines. The RE structures form an array of small antenna elements that act as an electrical impedance frequency filter. The AE is made up of a metal plate and several metal lines that are etched onto the film of quartz. The AE forms an opposite electrical impedance that absorbs energy, allowing only the intended signal to pass through.

The F5QA836M5M2AR-J filter utilizes a patented micro-electro-mechanical system that allows it to be digitally tuned for an adjustable center frequency and bandwidth. The micro-electronic-mechanical system is composed of two interlocking drives, a tuning actuator, and a signal-processing unit. The actuator is a miniature motor which is used to adjust the center frequency of the filter by applying an electrostatic force. The signal-processing unit consists of a series of ASICs, which detect the signal strength, determine the setting, and control the tuning. The system can be programmed with parameters such as center frequency, bandwidth, gain, tuning sensitivity, and stability.

The F5QA836M5M2AR-J SAW filter is ideally suited for communication applications such as wireless mobile phones, satellite receivers, and other radio communication equipment. The filter offers improved performance over traditional SAW filters due to its strong signal-to-noise ratio, low insertion loss, high reliability, and fast response time. Additionally, its digitally controlled tuning feature makes it easy to adjust the center frequency and bandwidth of the filter.

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