Technical memorandum: Bandwidth of a square hard horn
- 1 January 1988
- journal article
- Published by Institution of Engineering and Technology (IET) in IEE Proceedings H Microwaves, Antennas and Propagation
- Vol. 135 (4) , 275-278
- https://doi.org/10.1049/ip-h-2.1988.0056
Abstract
Horn antennas with dielectrically-filled longitudinal corrugations have recently been presented, and have been referred to as hard horns. Cylindrical hard horns can support a TEM wave at the design frequency, providing uniform aperture distribution and zero cross polarisation: this makes them attractive to use as compact elements in cluster feeds. In the paper the characteristic equation of a square hard waveguide is presented, and the crosspolar bandwidth is determined.Keywords
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