Excess loss of TE/11/ modes in curved circular waveguide
Abstract
The additional attenuation in a transmitted TE(11) mode caused by the presence of bends in the waveguide is calculated by the perturbation method for a perfect bend. The field expansion in the cross section, the couple differential equations, the fields in the curved waveguide, and the transmitted power and additional losses for a bend are analyzed. It is shown that the additional losses of the two cross-polarized TE(11) modes are not identical. The consequences of this include plane polarization rotation and elliptical polarization at the output port of the bend.
- Publication:
-
2nd International Conference on Antennas and Propagation
- Pub Date:
- 1981
- Bibcode:
- 1981icap.conf..525F
- Keywords:
-
- Antenna Feeds;
- Circular Tubes;
- Propagation Modes;
- Transmission Loss;
- Waveguides;
- Cross Polarization;
- Electromagnetic Fields;
- Microwave Antennas;
- Electronics and Electrical Engineering