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Power-Combined Multipliers at 60 GHz Based on Fundamental
Power-Combined Multipliers at 60 GHz Based on Fundamental

Learning material
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... Look at the equations. Equation (1) says that a time varying B field, of the right form, generates an E field. This is just Faraday’s law of induction. Equation (2) says that the E field regenerates the B field. Why? Because the E-field is acting as a current in Ampere’s law. This is still not a par ...
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advanced research in on-chip optical interconnects
advanced research in on-chip optical interconnects

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Waveguide (electromagnetism)



In electromagnetics and communications engineering, the term waveguide may refer to any linear structure that conveys electromagnetic waves between its endpoints. However, the original and most common meaning is a hollow metal pipe used to carry radio waves. This type of waveguide is used as a transmission line mostly at microwave frequencies, for such purposes as connecting microwave transmitters and receivers to their antennas, in equipment such as microwave ovens, radar sets, satellite communications, and microwave radio links.A dielectric waveguide employs a solid dielectric rod rather than a hollow pipe. An optical fibre is a dielectric guide designed to work at optical frequencies. Transmission lines such as microstrip, coplanar waveguide, stripline or coaxial cable may also be considered to be waveguides.The electromagnetic waves in a (metal-pipe) waveguide may be imagined as travelling down the guide in a zig-zag path, being repeatedly reflected between opposite walls of the guide. For the particular case of rectangular waveguide, it is possible to base an exact analysis on this view. Propagation in a dielectric waveguide may be viewed in the same way, with the waves confined to the dielectric by total internal reflection at its surface. Some structures, such as non-radiative dielectric waveguides and the Goubau line, use both metal walls and dielectric surfaces to confine the wave.
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