10
Wave Guides
10.1 INTRODUCTION
A transmission line guides electromagnetic (EM) energy from one point (generator point) to another point (load point). A “wave-guide” has a similar function. However, wave guide fundamentally differs from a transmission line. Wave guides are special cases of transmission lines. Table 10.1 summarizes the distinction between transmission line and a wave guide.
Table 10.1 Comparison between a transmission line and wave guide
| Sl No. | Transmission Line | Wave Guide |
|---|---|---|
1. |
It supports the transverse electromagnetic wave (TEM) only | It supports many possible configurations |
2. |
Due to the “skin effect” and higher dielectric losses, especially in frequency range 3–300 GHz, the transmission line becomes inefficient ... |
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