Antenna system for circularly polarized radio waves including antenna means and interface network
First Claim
1. Antenna system for a radio communication device having communication circuits and to be operating by circularly-polarized radio waves, said system comprising:
- a radiation means for circularly-polarized radio waves having an interface coupling means,an interface circuit means having first and second coupling means,said first coupling means being adapted for coupling to said communication circuits,said second coupling means being coupled to said interface coupling means,said interface circuit means including a closed loop means,said closed loop means being a resonator means,said resonator means having at least a first portion associated with said first coupling means,said resonator means having separated at least second, third and fourth portions forming said second coupling means.
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Accused Products
Abstract
An antenna system for a radio communication device, in particular a hand-portable telephone, having communication circuits and to be operating by circularly-polarized radio waves. In the system (1) there is provided a radiation means, preferably helical elements (2, 3, 4), a feeding network (8) having first coupling means (9) adapted for coupling to said communication circuits and second coupling means coupled to said helical elements (2, 3, 4). The interface means includes a closed resonator means (14), which has at least a first portion associated with said first coupling means (9), and having separated at least second (11), third (12) and fourth (13) portions forming said second coupling means (11, 12, 13).
76 Citations
28 Claims
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1. Antenna system for a radio communication device having communication circuits and to be operating by circularly-polarized radio waves, said system comprising:
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a radiation means for circularly-polarized radio waves having an interface coupling means, an interface circuit means having first and second coupling means, said first coupling means being adapted for coupling to said communication circuits, said second coupling means being coupled to said interface coupling means, said interface circuit means including a closed loop means, said closed loop means being a resonator means, said resonator means having at least a first portion associated with said first coupling means, said resonator means having separated at least second, third and fourth portions forming said second coupling means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification