Microwave Antenna Types

Microwaves are high-frequency electromagnetic waves that produce short-range radiated signals of one meter to one millimeter in length. These translate as signal frequencies of between 300 MHz (0.3 GHz) and 300 GHz. Uses for microwave technology include: signal-directed communications, utility and signal power propagation, remote sensor management, pulse-type RADARs, high-rate navigation and, of course, typical consumer goods such as household cooking appliances. In the case of antenna configurations, the approach is to focus a series of microwave signals on a close-in surface, then "slingshot" the total radiated volume back in order to produce an increase in overall gain.
  1. Electromagnetic Horn Antennas

    • Electromagnetic Horn Antennas are fully integrated systems that are simple, rugged and require virtually no signal tuning. As a result, these designs are perfect for man-portable or transportation purposes. The system applies a pyramidal structure to the horn radiator to allow the signal to bounce forward. These systems produce a very wide signal pattern. As such, these designs are excellent solutions for navigation purposes where a large receiving footprint is desired.

    Metal-plate Lens Antennas

    • Metal-plate Lens systems employ light aluminum wafers and can be fabricated on the fly. This configuration is very useful for mobile communications requirements. Typically a small radiator, or "horn," is pointed at the lens, which in turn produces a very narrow high-gain signal footprint. As a result these designs are sometimes referred to as "point and shoot" systems.

    Parabolic Dishes

    • Semi-circular parabolic dishes offer an excellent way to produce signal strength for communications purposes. This antenna configuration has been shown to create up to a 30 percent increase in ambient radiated signal gain. While this expected gain increase is typical for these designs, there are limitations such as geographical location, and/or constraints associated with external factors such as local electromagnetic interference or physical structure blockages.

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