Allgon Ab

Corbett Rowell

Johan Strand

Jonas Gamalielsson

An antenna device for a hand-portable radio communication unit including a casing with a ground plane means cooperating with the antenna device. The antenna device comprises first and second radiating elements ( ) being tuned to different resonant frequencies and having a common feed point ( ). The radiating elements ( ) are disposed in a compact arrangement on a support means ( ) so as to be confined entirely in the casing ( ).

Antenna device for a hand-portable radio communication unit

The present invention relates to a small microstrip antenna device, mountable inside a hand-held radio communication device, for receiving and transmitting RF signals in one or more frequency bands. The microstrip antenna comprises a ground plane means ( ), at least a first feeding means ( ) and N radiating elements where N is an integer greater than zero. The microstrip antenna structure also has a first conductive path ( ). The feeding means is arranged on the first patch for feeding radio frequency signals to the N radiating elements, wherein at least a first of the N radiating elements has a second patch ( ). The second patch is inductively coupled ( ) to the first patch.

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Hong Kong, China

Corbett Rowell