Title :
Modes of crossed rectangular waveguide
Author :
Stalzer, Henry J., Jr. ; Greenman, Mark D. ; Willwerth, Francis G.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
3/1/1976 12:00:00 AM
Abstract :
The cutoff frequencies and modal fields of dually polarized crossed rectangular waveguide are calculated numerically and the cutoff frequencies verified experimentally. Symmetry arguments and group theory are used to explain mode degeneracies and mode splitting. The single mode bandwidth is 38 percent of center frequency for both polarizations when the guide dimensions are chosen appropriately. For applications where symmetric excitation is assured, bandwidths in excess of 2:1 can be obtained.
Keywords :
Phased arrays; Waveguide arrays; Waveguides; Attenuation measurement; Bandwidth; Boundary conditions; Cutoff frequency; Loaded waveguides; Microwave antenna arrays; Phased arrays; Polarization; Rain; Rectangular waveguides;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1976.1141316
