## RWGT (Rectangular Waveguide Termination)

##### Symbol

##### Illustration

##### Available in ADS

##### Parameters

Name |
Description |
Units |
Default |
---|---|---|---|

A | Inside width of enclosure | mil | 900.0 |

B | Inside height of enclosure | mil | 400.0 |

Er | Relative dielectric constant | None | 1.0 |

Rho | Metal resistivity (relative to copper) | None | 1.0 |

TanD | Dielectric loss tangent | None | 0 |

Mur | Relative permeability | None | 1 |

TanM | Permeability | None | 0 |

Sigma | Dielectric conductivity | None | 0 |

Temp | Physical temperature | °C | None |

##### Range of Usage

A > B

TE10 and evanescent (below cutoff) modes are supported.

##### Notes/Equations

- The power-voltage definition of waveguide impedance is used in the frequency-domain analytical model.
- Conductor losses can be specified using Rho or TanM or both. Dielectric loss can be specified using TanD or Sigma or both.
- For time-domain analysis, an impulse response obtained from the frequency-domain analytical model is used.
- If the values of A and B are such that B > A, then B is assumed to be the width, and A is assumed to be the height.
- The "Temp" parameter is only used in noise calculations.
- For noise to be generated, the transmission line must be lossy (loss generates thermal noise).
- This component has no default artwork associated with it.

##### References

- R. Ramo and J. R. Whinnery.
*Fields and Waves in Modern Radio,*2nd Ed., John Wiley and Sons, New York, 1960.

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