02.02.23 -- Secondary Surveillance Radar — How Can It Be Tested More Effectively?

This application note describes how SKY65120 may be used with reduced bias control to obtain better thermal performance.

At Knowles Precision Devices, we know it takes high-quality and high-reliability electronic components to meet the rigorous standards required for military and space applications. After all, when launching expensive mission-critical equipment into space or using highly sophisticated electronic warfare devices to protect your citizens, there is no room for failure.

XF’s Huygens surface collects steady-state electric and magnetic fields on a closed surface encapsulating a device. These field values accurately capture antenna radiation characteristics.

Learn how Wi-Fi's next generation will improve the home user experience and how the upcoming Matter standard will bridge interoperability challenges to create a seamless home network.

Recent semiconductor technologies require more of the frequency range beyond 50 GHz, especially in wideband applications, such as 802.11ad, microwave links, or automotive RADAR. Low phase noise is essential for these applications to work properly, and accurate measurement of phase noise is needed to improve the performance. However, test setups at these frequencies become difficult, especially when cross correlation of two receive paths is needed to suppress additional phase noise.

Amplifiers are designed in many ways. We discuss in this application note the differences between the different classifications and what it means with respect to performance. 

Mismatch loads can be used to test amplifiers and help characterize their performance under conditions that might occur in the field. To do so, a mismatch load (or mismatch termination) is used to present a specified VSWR, rather than the usual 1:1 perfect 50 ohm load.