Aj. Robinson et al., WAVE GUIDANCE AND RADIATION FROM A HOLLOW TUBE FORMED FROM FREQUENCY-SELECTIVE SURFACES, Electronics Letters, 29(17), 1993, pp. 1531-1533
A hollow tube (rectangular cross-section) employing a frequency select
ive surface of conducting elements has been constructed and tested as
a waveguiding structure. The measured results presented include the fr
equency response of the waveguide and radiation pattens observed at fr
equencies away from the guiding region. The important aspects of the r
esults are discussed with reference to fast and slow wave structures.