Impedance Measurement by Means of a Broadband Circular-Polarization Coupler
- 1 October 1954
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 42 (10) , 1554-1558
- https://doi.org/10.1109/JRPROC.1954.274762
Abstract
This paper describes a waveguide component particularly useful as a broadband impedance-measurement instrument. The component consists of a length of circular waveguide at right angles to the broad wall of a rectangular waveguide, and coupled to it by three apertures. A probe rotated one turn in the circular waveguide will sample a field variation exactly equivalent to that in one guide wavelength of the rectangular waveguide. This condition may be maintained with high accuracy over approximately a 20-per cent bandwidth. The principle of operation of the device is discussed in the paper and design equations given. Several possible applications are described.Keywords
This publication has 3 references indexed in Scilit:
- Microwave Coupling by Large AperturesProceedings of the IRE, 1952
- Determination of Aperture Parameters by Electrolytic-Tank MeasurementsProceedings of the IRE, 1951
- An Oscillographic Method of Presenting Impedances on the Reflection-Coefficient PlaneProceedings of the IRE, 1947