| 摘要 |
The invention relates to an antenna device for use in a radio communication comprising a substantially flat structure formed by a dielectric substrate (4) with a conductive pattern on at least one surface. The antenna device comprises a radiating portion (9), and a feeding portion (10), where the conducting pattern comprises a signal conductor (1, 1a, 1b, 1c) for transmitting RF-signals to and from said at least one radia-ting element (6, 6a-6c), and at least one ground conductor (2, 2a-2g) connectable to electrical ground. The signal conductor (1, 1a, 1b, 1c) and the ground conductor (2, 2a-2g) extend in parallel from said contact edge portion of the feeding portion (10) to said radiating portion (9) so as to form an essen-tially lossless waveguide for RF-signals. The feeding portion (10) is rigid and is provided with a contact edge portion hav-ing signal and ground contact terminals for making electrical contact with corresponding contact terminals on the communica-tion apparatus. The antenna device may be a meander antenna, a patch antenna, a slot antenna or a PIFA. |
