摘要:
The present invention relates to an antenna system comprising a metal cover (1) for a radio communication device and a complementary antenna (19,20). The metal cover comprises a front side part (5), a first back side part (4) connected to the front side part through a top side part (6), a second back side part (7) connected to the front side part through a bottom side part (8), wherein the bottom and top side parts are positioned at opposite ends of the front side part, and the first and second back side parts are positioned coplanar and distanced from each other by a gap, and the front side part comprises a recess at said bottom side part and/or at said top side part in which recess said complementary antenna (19,20) is positioned in.
摘要:
The invention relates to an antenna device for a communication device operable in at least two frequency bands. The antenna device (1) comprises a generally planar driven radiating element (2) having a feeding portion (5) connectable to a feed device of the communication device (20) and a generally planar parasitic element (3, 3') having a grounding portion (G) connectable to a ground device of the communication device (20). The driven radiating element (2) and the parasitic element (3, 3', 3") are essentially coplanar and separated by a gap (7). In accordance with the invention the parasitic element (3, 3', 3") comprises a slit (6, 6'), by means of which a double-resonance is provided in a first frequency interval. The invention also relates to a parasitic element and to a communication device comprising such an antenna device.
摘要:
An antenna device for a portable radio communication device adapted for receiving radio signals in at least a first frequency band and a separate second frequency band, said antenna device comprising a half-loop radiating element (1) wherein said first frequency band includes the first harmonic for said half-loop radiating element (1), and wherein said half-loop radiating element (1) comprises inductive loading at a high current section for the third harmonic for said half-loop radiating element (1), such that said second frequency band includes said third harmonic for said half-loop radiating element (1).
摘要:
The present invention relates to an antenna arrangement for a portable radio communication device having a metal casing, wherein the antenna arrangement comprises: a front side part (5) of the metal casing, a first back side part (4) connected to the front side part through a top side part (6) of the metal casing, a second back side part (7) connected to the front side part through a bottom side part (8) of the metal casing, wherein the bottom and top side parts are positioned at opposite ends of the front side part, and the first and second back side parts are positioned and distanced from each other by a gap.
摘要:
The present invention relates to an antenna arrangement for a portable radio communication device having a metal casing, the antenna arrangement comprising: a front side part (5) also forming a ground plane means for the portable radio communication device, a first back side part (4) connected to the front side part through a top side part (6), a second back side part (7) connected to the front side part through a bottom side part (8), wherein the bottom and top side parts are positioned at opposite ends of the front side part, and the first and second back side parts are positioned and distanced from each other by a gap, and the front side part and back side part also forming a back piece of the metal casing for the portable radio communication device, and the antenna arrangement comprises a magnetic type antenna element (1) positioned partly in the gap and positioned partly over the first back side part, partly over the top side part or partly over the front side part.
摘要:
The present invention relates to an antenna device for a portable radio communication device configured for simultaneous multi frequency band operation. The antenna device comprises a first elongated radiating element (1), a second elongated radiating element (2), a third elongated radiating element (3), first filtering means (4) arranged between the first and second elongated radiating elements, second filtering means (5) arranged between the second and third elongated radiating elements, and third filtering means (6) connecting the second elongated radiating element (2) to ground, wherein the first filtering means (4) is configured to block BT operating frequencies and to pass FM operating frequencies, the second filtering means (5) is configured to pass FM operating frequencies, and the third filtering means (6) is configured to ground GPS operating frequencies.
摘要:
The present invention relates to an antenna device for a portable radio communication device. The antenna device comprises a metal cover for the portable radio communication device, wherein the metal cover comprises a front side part (3), a first back side part (1) connected to the front side part through a top side part (4), a second back side part (2) connected to the front side part through a bottom side part (5), wherein the bottom and top side parts are positioned at opposite ends of the front side part, and the first and second back side parts are positioned essentially coplanar and distanced from each other by a slot, the first back side part comprises a feed point (6; 12; 16) and a ground point (7; 13; 14, 15), and the first back side part is fed through the feed point.
摘要:
The present invention relates to an FM antenna for a portable radio communication device, wherein the FM antenna comprises a multiple turn coil radiating element (2) connected to a monopole radiating element (1).
摘要:
The present invention relates to an antenna device for a portable radio communication device, comprising a first radiating element (1) having a first feed portion (5), a second radiating element (2) having a second feed portion (6), a first filter (3) and a second filter (4), wherein said first and second radiating elements (1, 2) are interconnected through said first filter (3), said first radiating element (1) is configured to be tuned to a first frequency band, and said second radiating element (2) is configured to be tuned to a second frequency band, wherein said first radiating element (1) is configured to be fed by at least said first frequency band and a third frequency band lower than said first frequency band and said second frequency band through said first feed portion (5), said second radiating element (2) is configured to be fed by said second frequency band through said second filter (4), said first filter (3) is configured to block said first and second frequency bands and pass said third frequency band, and said second filter (4) is configured to block said third frequency band and pass said second frequency band.
摘要:
The present invention relates to antenna device for a portable radio communication device, wherein the antenna device comprises a main radiating element (1) and a diversity radiating element (2). The main radiating element (1) is tuned (8; 11) to a transmitting frequency band of the antenna device and is tuned (8; 11) to part of a receiving frequency band of the antenna device corresponding to the transmitting frequency band, and that the diversity radiating element is tuned (9) to part of the receiving frequency band.