CER0138B

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Ceramic filters are an increasingly popular choice among electronic circuits due to their high tolerance to heat and low signal loss. The CER0138B is one of the latest in this family of filters and is a high-temperature, low-loss filter with a bandwidth of 1.8 GHz. This filter is ideal for a wide range of applications, from wireless communications to commercial and military use.

The CER0138B filter is designed to maintain a very low noise level and a broad dynamic range of signal frequencies. Its performance is optimized for wide bandwidth applications, such as third generation (3G) and fourth generation (4G) wireless systems. It has a frequency range of 1.8GHz, with a stopband frequency range of DC to 500MHz, and passband frequency range of 500MHz to 1.8GHz. The insertion loss is less than 1dB in the passband, with typical values of 0.4–0.7dB, and stopband rejection is greater than 25dB.

The CER0138B"s excellent performance is due to its unique, high-temperature ceramic construction. It features both silver and gold plated electrodes, which provide greater isolation and more accurate filtering than conventional filters. The ceramic material also offers superior temperature stability, ensuring better performance in high-temperature environments. Additionally, it features a built-in voltage regulator that protects the filter from voltage and current surge.

The CER0138B is suitable for a wide range of applications. It is used in radio frequency (RF) receivers, GPS receivers, satellite receivers, and VideoCD systems. It is also used in medical and computer applications, particularly when precision control of electo-acoustic signals is required. The filter also finds use in filter banks for fractional-N frequency synthesis.

The CER0138B"s working principle is based on classic filter-theory principles. It uses a combination of inductors and capacitors constructed from ceramic materials to form a series of resonant circuits. These circuits act as bandpass filters, allowing the desired signal frequency to pass while rejecting all other frequencies. The filter relies on the principles of resonance and reactance to ensure that only the desired frequency passes through, while all others are rejected.

The CER0138B is the perfect choice for applications requiring a high-temp, low-loss filter. Thanks to its unique ceramic construction, it offers greater stability and improved performance. With its wide range of applications, it is a versatile solution for a variety of uses.

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