Distributed coupling antenna
First Claim
Patent Images
1. An antenna comprising:
- a ground plane region;
a feed element having associated with it a first reactance; and
a coupling element having associated with it a second reactance, said second reactance being of similar magnitude and opposite sign to said first reactance so as to cancel said first reactance, said coupling element being coupled to said feed element and to said ground plane region and being located in close proximity to said ground plane region,wherein an impedance and hence a resonant frequency of the antenna depend on said first and second reactances.
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Abstract
An antenna including a ground plane region, a feed element having associated with it a first reactance and a coupling element having associated with it a second reactance, the second reactance being of opposite sign to the first reactance, the coupling element being coupled to the feed element and to the ground plane region and being located in close proximity to the ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on the first and second reactances.
30 Citations
29 Claims
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1. An antenna comprising:
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a ground plane region; a feed element having associated with it a first reactance; and a coupling element having associated with it a second reactance, said second reactance being of similar magnitude and opposite sign to said first reactance so as to cancel said first reactance, said coupling element being coupled to said feed element and to said ground plane region and being located in close proximity to said ground plane region, wherein an impedance and hence a resonant frequency of the antenna depend on said first and second reactances. - 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, 29)
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Specification