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Groove guide as a low-loss transmission system for short millimetric waves

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2 Author(s)
Harris, D.J. ; UWIST, Department of Physics, Electronics & Electrical Engineering, Cardiff, UK ; Lee, K.W.

Groove guide promises low-loss transmission at short millimetric wavelengths, coupled with simple construction and convenient dimensions. Even though the guide is of overmoded dimensions, the groove acts as a higher-order-mode filter. Approximate analytical solutions are shown to be adequate to give sufficiently accurate propagation characteristics. Higher-mode suppression is investigated and shown to be effective at 8 mm wavelength.

Published in:

Electronics Letters  (Volume:13 ,  Issue: 25 )