by Lee Cloer | Dec 18, 2017 | General Interest, Repair and Engineering, Video |
A radar detects an aircraft by sending out a high-frequency radio wave and then measuring the time it returns to understand the distance and direction to a target. If you have a slotted planar antenna like the APG-66/68 or the APQ-159, the HF radio wave is directed to...
by Lee Cloer | Nov 10, 2017 | Ask an Engineer, General Interest, Video |
Not only are there space and weight savings because of the Integrated transmit and receive chain, an AESA radar provides opportunity for many performance improvements over a mechanically scanned radar antenna. This video discusses a couple of them. The high movement...
by Lee Cloer | Nov 2, 2017 | Ask an Engineer, Video |
The concepts of phase shifting antenna elements to create a high-gain antenna can be extended to allow digital control of the antenna direction in what is known as an Electronically Scanned Antenna. Electronically scanned antenna arrays use phase shifting elements to...
by Lee Cloer | Oct 31, 2017 | Ask an Engineer, Video |
Directional, high-gain antennas can be made using arrays of individual elements rather than through large horn or parabolic antennas. Individual radiating elements with controlled phase shift combine to create more gain in a desired direction. Initially arrays of...
by Lee Cloer | Oct 25, 2017 | Ask an Engineer, Video |
This video below discusses an individual antenna element, an array (e.g. leaky waveguide, PESA, AESA). What role does phase shift play in a system and the idea that relative distance and element size is related to frequency. We encourage you to pass this video along...
