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What is TEM?

This page explains what is TEM(Transverse Electromagnetic) and provides useful links.

As we know that electrical signals are propagated from one place to the other in various forms as mentioned below:
•  in the form of current/voltage through conductors(of transmission lines)
•  in the form of guided electromagnetic waves through waveguides/fiber optic
•  in the form of radiated electromagnetic waves through space using antennas

Electromagnetic wave propagation mainly depends on medium between transmitting and receiving ends. The electrical parameters of the medium which will have effect on the EM waves are σ , ε and μ.

TEM Transverse Electromagnetic mode

In free space, at a large distance away from the source, propagation takes place in Transverse Electromagnetic mode (TEM mode). The same is depicted in the figure. In TEM mode, E and H fields are orthogonal to each other and both are perpendicular to the direction of propagation.

WAVEGUIDE RELATED LINKS

RF Switch basics and applications along with manufacturers of RF switch refer following link:
RF Switch

For types of waveguide viz. rectangular & circular, waveguide propagation modes, impedance matching of waveguide read following waveguide tutorial.
waveguide basics tutorial

Manufacturers of waveguide components such as waveguide to coaxial adapter, coupler, flanges, gasket, tees, termination, shorts, isolator, circulator, horn antenna, attenuator, feed-thrus, bends, loads, twists, straights, pressure windows, transformers, sliding short circuits, fixed short circuits, sliding mismatches etc. visit following link.
Waveguide components manufacturer

Rectangular waveguide dimensions as per USA standard including frequency, broad dimension and narrow dimensions, visit following link.
Waveguide dimensions table

This article describes microstrip line basics and mention types of microstrip lines and their advantages. READ MORE.

Microwave semiconductor devices.

What is?

what is RF?  what is wireless ?  what is zigbee?  what is Bluetooth?  what is lightwave RF?  what is z-wave?  what is microcontroller?  what is GSM?  what is GPRS?  what is infrared? 

RF and Wireless Terminologies


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