Pre-filtered GPS LNA
Configurable, pre-filtered, GPS low noise amplifier modules for navigation and timing systems, are a necessity in almost every marketplace. Operating reliably in an increasingly crowded RF spectrum is a continuously evolving challenge to system designers. Performance depends upon receiving a clean signal free from intentional and unintentional interference. The product exhibits excellent anti-jam performance and a Sub 2 dB noise figure.
The 312 Series pre-filtered GPS LNA is qualified for the most critical of environments for military and airborne applications and is available in low-order quantities with a short lead time. The 312 series is a high-performance product that was designed for custom platforms without the high cost associated with a custom solution.
Assembly has the flexibility built in to allow for various gain levels, supply bias options, GPS band frequencies, and the number of outputs. The amplifier assembly is housed in one of three laser-welded, hermetic housings which provides for a variety of field-removable mating connectors.
Features like customized GPS filters and limiter protection are provisioned on the amplifier assembly and are considered semi-standard. This means that these features can easily be added without significantly impacting the cost or lead time.
Built to allow the designer to specify which GPS Band(s) that the module must operate in, the level of gain from 16 to 40 dB in 3 dB increments, either single or dual output, the bias option, and the mating RF and DC interfaces.
In many cases, the operational environment is the reason a user seeks a custom solution. Utilizing internal test labs, the 312 Series GPS LNA has been subjected to the most popular testing. When possible, the 312 has been included in testing of other product lines. This environmental testing is critical to provide confirmation that the 312 Series product will perform as well as a custom solution.
The 312 Series product line is very adaptable making it ideal for most applications, even those applications where a custom design seems like the only solution.
For example, the 312 Series has been adapted using custom filters with additional rejection performance. It has been modified to provide 3 outputs instead of the single or dual only. One application required an ultra-lightweight version, so Spectrum Control utilized magnesium and SSMA connectors to reduce the 312 Series weight by about 30%. All of these adaptations were done without significant redesign or NRE charges.