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(11) | EP 0 718 909 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Retractable top load antenna |
(57) An antenna assembly comprises an elongate antenna element (11) mounted in a support
(5) and movable between a retracted position and an extended position. A helical antenna
element (12) in electrical contact with the helical element is carried at one end
of the elongate element. The coupling between the feed point and the antenna in the
retracted and extended positions allow the same matching circuitry to be used in both
conditions. The invention provides a compact and convenient dual antenna arrangement
ideally suited for use in a portable cellular radio telephone. |