Experimental studies of magnetically scannable leaky-wave antennas having a corrugated ferrite slab/dielectric layer structure
- 1 July 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 36 (7) , 911-917
- https://doi.org/10.1109/8.7195
Abstract
The radiation characteristics of a magnetically scannable leaky-wave antenna using a corrugated ferrite slab supported by a Teflon waveguide have been demonstrated experimentally. A corrugated polycrystalline yttrium iron garnet (YIG) slab having the dimensions 150.0 mm*15.0 mm*10 mm has been fabricated. The corrugation depth, corrugation spacing, and number of corrugations are 150.0 mu m, 2.0 mm, and 55.0, respectively. Experiments have been carried out in the millimeter-wave frequency range from 40.0 to 50.0 GHz. The main beam direction of the leaky wave shifts continuously about 41.0 degrees at the operating frequency 46.8 GHz by altering the DC magnetic field up to 1.4 T. It is found that the corresponding half-power beamwidth varies from 3.2 degrees to 3.6 degrees and a maximum scanning rate is 1.0 degrees /0.02 T. Experimental results are compared with theory based on the dispersion relation of the ferrite slab/dielectric layer structure.<>Keywords
This publication has 6 references indexed in Scilit:
- Horn Image Guide Leaky-Wave AntennaPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Radiation of millimeter waves from a grooved ferrite image lineProceedings of the IEEE, 1982
- Electronic Modulated Beam-Steerable Silicon Waveguide Array AntennaIEEE Transactions on Microwave Theory and Techniques, 1980
- Simulation Study of Electronically Scannable Antennas and Tunable Filters Integrated in a Quasi-Planar Dielectric WaveguideIEEE Transactions on Microwave Theory and Techniques, 1978
- Silicon Waveguide Frequency Scanning Linear Array AntennaIEEE Transactions on Microwave Theory and Techniques, 1978
- Surface Electromagnetic Modes of a Ferrite SlabIEEE Transactions on Microwave Theory and Techniques, 1974