G6QL2G140M2PA-J

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Surface acoustic wave (SAW) filters are electronic components used to separate signals by frequency in order for a desired frequency to pass through a filter unaltered. SAW filters are commonly used in radio frequency (RF) communications such as mobile phones and wireless networking. The G6QL2G140M2PA-J is a type of SAW filter manufactured by Murata Electronics.

The G6QL2G140M2PA-J is a high-reliability device primarily used to filter near UHF bandwidths. It is a high-performance filter meant for applications with demanding requirements. The G6QL2G140M2PA-J has a wide operating range of -40°C to +85°C and is constructed using a multilayer ceramic process with gold and silver plated terminations. It features very low insertion loss and high selectivity, both of which assist in providing a quality signal path for communications applications.

One of the primary applications of the G6QL2G140M2PA-J is to provide a transmitting filter for mobile phones. In this scenario, the filter is used as an audio frequency (AF) filter to isolate the receive and transmit frequencies from one another. The G6QL2G140M2PA-J provides a very low insertion loss, allowing the mobile phone to transmit signals efficiently at the desired frequency without interference from other frequencies. It also assists in reducing or eliminating adjacent channel interference, improving the overall quality of the signal.

The working principle behind the G6QL2G140M2PA-J filter is the use of surface acoustic waves (SAWs) to separate different frequencies. A SAW filter is made up of a piezoelectric substrate coated with an interdigital transducer (IDT). When an electrical signal is applied to the IDT, it creates a wave in the substrate which is used to filter the signal. The frequency of the wave is determined by the spacing of the IDT, which in turn determines which frequencies are blocked and which pass through the filter.

The G6QL2G140M2PA-J also incorporates a second type of filter called a duplexer. A duplexer is a device with two ports that allow for two different frequency signals to be passed through without interference. The duplexer is used in combination with the SAW filter, providing a second layer of filtering to ensure that the desired frequency is passed through without interference and with minimal loss.

The G6QL2G140M2PA-J is a high-performance SAW filter used for filtering near UHF bandwidths. It is constructed using a multilayer ceramic process and features very low insertion loss and high selectivity, allowing for efficient signal transmission in mobile communications such as cell phones. Its primary application is to provide a transmitting filter for mobile phones, isolating the receive and transmit frequencies from one another. The G6QL2G140M2PA-J utilizes surface acoustic waves and a duplexer filter to ensure that only the desired frequency is allowed to pass through without interference.

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