Coupling element for realizing electromagnetic coupling and apparatus for coupling a radio telephone to an external antenna
First Claim
1. A coupling element for transferring an electromagnetic field between an element radiating at a radio frequency and a particular signal port forming the end of a cable, comprising a dielectric body block and in connection with said dielectric body block,a coupling hole arranged to intercept an electromagnetic field and to direct said electromagnetic field into said dielectric body block,an outer conductor to provide an electric ground plane for guiding said electromagnetic field through said body block, andan inner conductor connected galvanically to a conductor of said cable to guide said electromagnetic field through said dielectric body block to said signal port.
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Accused Products
Abstract
The antenna (D) of a radio telephone radiates electromagnetic RF radiation which is directed to a dielectric body block (10) according to the invention. By means of an inner and an outer conductor (1, 2) formed on the surface of the block a signal carried by the electromagnetic radiation is coupled to a coaxial cable (12) which takes it to an external antenna.
50 Citations
13 Claims
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1. A coupling element for transferring an electromagnetic field between an element radiating at a radio frequency and a particular signal port forming the end of a cable, comprising a dielectric body block and in connection with said dielectric body block,
a coupling hole arranged to intercept an electromagnetic field and to direct said electromagnetic field into said dielectric body block, an outer conductor to provide an electric ground plane for guiding said electromagnetic field through said body block, and an inner conductor connected galvanically to a conductor of said cable to guide said electromagnetic field through said dielectric body block to said signal port.
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10. An apparatus for connecting a radio telephone having a first antenna, to an external antenna, comprising:
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a cable for feeding an external antenna; a coupling element between the first antenna and said feed cable, comprising a dielectric body block, a coupling hole to feed an electromagnetic field from the first antenna to said dielectric buy block, an outer conductor on the outer surface of said dielectric body block to provide an electric ground plane for guiding said electromagnetic field through said dielectric body block, and an inner conductor on the opposite surface of said dielectric body block to guide said electromagnetic field through said dielectric body block to said field cable; and means for detachably contacting said radio telephone to said apparatus. - View Dependent Claims (11, 12, 13)
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Specification