Itasca, Illinois, September 30, 2026 / PRNewswire / -- Knowles Corporation (NYSE ticker: KN) today announced the launch of a new ATT A series of attenuators. Knowles is a manufacturer specializing in specialty electronic components, with products including high-performance capacitors, radio frequency RF filters, advanced medical technology microphones, and dynamic iron speakers. This release expands Knowles's RF product portfolio and the markets it can serve, further advancing its strategy to become a one-stop supplier of high-performance RF components.
Knowles indicates that the ATT A series is designed to meet the growing market demand for compact, robust, and cost-effective attenuators. This series combines excellent attenuation accuracy, high power handling capacity, and broadband performance, and is packaged using industry-standard formats. The A series utilizes precision thin-film technology to provide stable electrical performance and repeatable attenuation within the range of DC to 20 GHz, making it suitable for high-density, space-constrained designs.
Attenuators are crucial for matching signal levels in multi-channel systems, improving echo loss, protecting sensitive components, and optimizing the dynamic range of the entire RF signal path. As the system bandwidth and operating frequency of RF continue to increase, designers require smaller and more precise components to maintain electrical accuracy and reliability in harsh environments.
Knowles RF and Vice President of Microwave Products, Robert Wagner, stated: "Our new A-series attenuator product family fills a key market gap by offering DC-20GHz broadband performance, high power handling capacity, and excellent attenuation accuracy in a compact SMT package. Compared to many other attenuators on the market today, our A-series provides a more cost-effective solution with higher power handling capacity, a wider operating temperature range, MSL level 1 protection, and ESD protection capabilities."
According to Knowles, the new A-series attenuators utilize precision thin-film resistor technology on ceramic substrates, which enables them to provide stable and reliable performance under extreme conditions of frequency, temperature, and environment. This product series is suitable for a variety of applications, including radar systems, electronically scanned phased array antennas ( ESA ), electronic support measures ( ESM ) systems, transmit/receive (T/R) modules, wireless infrastructure ( WI ), satellite communications ( SATCOM ), as well as RF testing and measurement (T&M).
Main features include:
- Compact SMT packaging, only 0.080 inches × 0.065 inches × 0.012 inches (2.03 × 1.65 × 0.30 millimeters)
- Standard decay value ranges from 0 dB to 20 dB.
- Outstanding attenuation flatness and precision
- 50Ω matched RF input and output, facilitating seamless integration into the RF signal chain
- Can withstand a maximum continuous wave power of 6.5 W at 100°C
- Operating temperature range is from -55°C to +125°C.
Its compact design and compatibility with SMT packaging make it easy to integrate into space-constrained components, making it suitable for demanding applications in national defense, aerospace, industry, and communications. The A series is also compatible with existing industry-standard chip attenuator pins, providing a more direct upgrade path with minimal need for redesign of PCB, thereby enhancing performance, expanding bandwidth, and strengthening supply chain resilience.
The A series offers standard attenuation values ranging from 0 dB to 20 dB. In addition, customized attenuation values, power levels, and specialized configurations can be provided through Knowles's design according to specifications and full-process customization solutions.
For complete performance data and specifications, please refer to the ATT A series data manual.
About Knowles
Knowles is a leading manufacturer of special electronic components. The components designed by the company can play a unique and crucial role in innovative technologies. With their extremely high reliability, customized engineering capabilities, and scalable manufacturing capacity, the company supports the most demanding applications in the medical technology, defense, and industrial markets, helping customers to succeed.
The company's high-performance capacitors, RF / microwave filters, advanced medical technology microphones, dynamic iron units, and miniaturized products are capable of enhancing and improving technical performance that has the power to change, improve, and save lives. Knowles was founded in 1946, with its headquarters located in Itasca, Illinois, and has since developed into a global organization with employees in 11 countries.
For more information, please visit https :// www.knowles.com.
