Portable radio antenna

Details Portable radio antenna Portable radio antenna

H - Electricity

01

Q

351/4

H01Q 1/24 (2006.01) H01Q 1/27 (2006.01) H01Q 9/04 (2006.01) H01Q 9/38 (2006.01)

Patent

CA 1089091

PORTABLE RADIO ANTENNA ABSTRACT OF THE DISCLOSURE An antenna for a hand-held radio transceiver includes first and second elements extending from the radio's case. The first element is comprised of a pair of series coupled members having electrical lengths of one-half and one- quarter wavelength, respectively, with the free end of the second member being coupled to the transmitter output. The second element couples to the radio's electrical ground and is configured to form a transmission line with the second member. The effective electrical length of the second element, including the influence of the elements parasitic coupling to the radio, is adjusted to be one-quarter wave- length. The resulting antenna structure minimizes surface currents across the radio's body, thereby substantially eliminating power loss caused by absorption in the user's body.

305745

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