Crystal Filters
We offer a wide range of crystal filter types and specifications
All of our highlighted key crystal filter products are chosen for their combination of competitive commercial pricing compact packages and a wide range of developed frequencies and bandwidths. If you cannot find the product you are looking for, don’t hesitate to contact our expert advisers.
Please browse our full range of crustal filters below or use our product search bar to find the exact crystal filter you require.
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What is a crystal filter?
Crystal filters are electronic filters that use quartz crystals as the resonating elements. They are commonly used in radio frequency (RF) and microwave frequency receiver and transmitter circuits
Crystal filters are available in a number of different selectivity options characterized by the number of resonant elements referred to as the number of poles. For Gollege products this a number between 2 and 8. The greater the number of the poles the sharper the cutoff and the greater the rejection of out-of-band signals but also the larger the package. We are happy to help you chose the right one for your application.
What are crystal filters used for?
The main advantage of crystal filters is their narrow bandwidth, high stability and being passive devices have no power consumption, which makes them ideal for use in narrowband systems where high performance is required without the power penalty of digital processing.
Crystal filters are widely used in some high performance communications applications, such as professional radio, military and aerospace systems, where the performance and stability offered by crystal filters is critical.
Other common applications where crystal filters are used include amateur radio communications and many other types of radio frequency devices.