ppt 6(suseva)

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Microwaves are electromagnetic waves with wavelengthsranging from 1 mm to 1 m, or frequencies between300 MHz and 300 GHz. As a consequence, practicalmicrowave technique tends to move away from the discreteresistors, capacitors, and inductors used with lowerfrequency radio waves. Instead, distributed circuit elementsand transmission-line theory are more useful methods fordesign, analysis. The term microwave generally refers to thealternating current.Electromagnetic waves longer (lower frequency) thanmicrowaves are called "radio waves".

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