UHF TRANSMISSION LINE CAPABLE OF CONTINUOUS RADIATION ALONG ITS AXIS,
FURUKAWA ELECTRIC CO LTD TOKYO (JAPAN)
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A radiative coaxial cable for VHF and UHF bands can be manufactured by cutting slots in its outer conductor and a slit on the opposite side. Any coupling loss can be obtained by changing the length of the slot or by changing its angle. While the loss as a transmission line is not very large in case the coupling loss is 60 db 2 m off or over, the radiation loss rapidly increases at less than 60 db, with a resultant increase in transmission line loss, which fact is undesirable from the practical point of view. Accordingly, design should be made at a coupling loss of 60 db or over.
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