Two dual SAW Filters for use in multi-band communication systems

Nisshinbo Micro Devices has released the NSNJ2023 and NSNJ2024.

Credit: Nisshinbo Micro Devices

These are two advanced dual Surface Acoustic Wave (SAW) filters in a compact package with advanced capabilities used in signal processing to filter out specific frequencies from a signal and are designed to enhance performance in various applications, such as general-purpose multi-band communication systems.

A SAW filter operates on the principle of surface acoustic waves, which are sound waves that travel along the surface of a material. The filters are typically built on a piezoelectric substrate and these materials can convert electrical signals into mechanical vibrations (acoustic waves) and vice versa.

The output converts the mechanical vibrations back into an electrical signal. Due to the properties of the substrate and the design of the interdigital transducers (IDTs), only specific frequencies are efficiently transmitted, effectively filtering the signal.

Using two SAW filters in one package offers several advantages, particularly in the context of modern electronic devices and communication systems.

Combining two SAW filters into a single package significantly reduces the component's overall size, which is particularly valuable in compact electronic devices where board space is at a premium. Integrating two filters into one package simplifies the design and manufacturing process, reduces the number of components on the circuit board, and is more cost-efficient.

The NSNJ2023 and NSNJ2024 are available in a space-saving package measuring only 3 x 3 x 1.08 mm, suitable for use in small-sized applications.