THE FEASIBILITY OF MICROWAVE POWER TRANSMISSION USING CIRCULAR WAVEGUIDE.
Abstract
A cylindrical waveguide operating in the TE 01 mode can transmit powers of the order of thousands of megawatts in frequency ranges below 10 gc/s with acceptable copper losses over distances of hundreds of miles, provided it can be made with sufficient accuracy to avoid excessive power transfer into other unwanted high-loss modes. Tolerances on the guide straightness, diameter variation, and cross-section ellipticity are evaluated and found to be of the same order of magnitude--10 to 100 mils--in distances of a few hundred feet for typical values of other parameters. The diameter and ellipticity, however, should be easier to control. Low-loss bends with bending radii of the order of 0.5 mile are possible if the length of the bend is accurately controlled and the guide has a dielectric lining of the proper thickness. For systems over 50 miles in length it will be necessary to reduce the percentage of oxygen in the internal air below that of ordinary air. A waveguide using a plastic foam structure appears to be capable of meeting the required tolerances.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1966
- Accession Number
- AD0805068
Entities
People
- Walter Loewenstern Jr
Organizations
- Stanford University