Until recently phased array radar has been very expensive, used only for military applications where the cost of survival weighs in the balance. With the advent of low-cost microwave devices and ...

Two antennas are used: one antenna measures ... For example, if a radar target doesn’t have a large enough radar cross-section on one frequency, there is a good chance that another frequency ...

DSS-13 antenna to receive the signal that bounced off the asteroid and came back to Earth. The result of this "bistatic" radar observation is a detailed image of the asteroid's surface ...

Antennas used with ground penetrating radar (GPR) come in different shapes and sizes. The largest antennas typically radiate the lower frequencies necessary to detect the deepest targets.

and radar - for more than fifty years. Our earliest TV broadcasts have reached several thousand nearby stars, although any alien viewers would have to build a very large antenna (thousands of acres in ...

The five-person company is developing an electronically steerable, radar-based imaging technology for space. Unlike conventional antennas that ... precise scanning of large areas.

A 6×6 truck carries the radar antenna of Alpha Design Technologies' VHF radar, which will be supplied to the IAF. (Janes/Oishee Majumdar) Bangalore-based Alpha Design Technologies has secured a ...