CER0704A

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Ceramic filters are widely used in communication systems because of their ability to reject unwanted signals in their pass band while allowing desired signals to pass through with minimal losses. The CER0704A is a compact filter module with high performance and high reliability.

The CER0704A filter module is a 7-pole low-pass filter that provides improved out-of-band rejection and low insertion loss. It has two electrical configurations, a balanced-to-balanced configuration, and a single-ended configuration. The device is designed to operate in the 700 MHz to 4 GHz frequency range, with 3 dB cut off frequency between 1.8 - 2.3 GHz.

The CER0704A uses eight filters in a series configuration to form a 7-pole filter with input and output of 50 Ω. Each of the eight parallel filter paths is designed with two pole parallel resonators connected in series to maintain a low pass-band insertion loss. The output is then coupled to the next stage giving them extremely low transmission errors between the resonators. The module has a compact form factor and can be laid out on a single-layer board.

The CER0704A is designed to meet the most stringent requirements of a wide range of wireless applications. Its high selectivity and out-of-band rejection capability makes it ideal for Next Generation Communication (NGC) systems, offering reduced interference and improved performance. Applications of the CER0704A include GPS receivers, cordless phones, WIFI and WiMAX systems, as well as digital and satellite radio reception.

The CER0704A is a well-designed filter module that is simple to operate. It features a low insertion loss, small form factor, broad operating bandwidth and a high level of selectivity at the reject frequencies. The device has two electrical configurations, the single-ended and the balanced-to-balanced configuration. It can be easily applied to a wide variety of wireless communication systems.

The working principle of the CER0704A is based on impedance matching and judicious combination of resistors, inductors and capacitors. The combination enables the CER0704A to reject undesired signals in its pass band and allow desired signals to pass through with minimal losses. The eight filters in series configuration form a 7-pole filter to offer improved performance and selectivity. The CER0704A is designed to provide a high level of performance in the 700 MHz to 4 GHz frequency range.

The CER0704A ceramic filter module is a highly efficient and high performance device used in communication systems. It has a low insertion loss, compact form factor, broad operating bandwidth and a high level of selectivity at the reject frequencies. It is well-suited for a variety of wireless communication applications including GPS receivers, cordless phones, WIFI and WiMAX systems, as well as digital and satellite radio reception. The working principle of the CER0704A is based on impedance matching and judicious combination of resistors, inductors and capacitors to reject undesired signals in its pass band and allow desired signals to pass through with minimal losses.

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