Dual antenna and methods
First Claim
1. A method of operating a dual antenna capable of operating in first and second frequency bands the antenna comprising a first radiating element disposed on a first substrate, a second radiating element disposed on a second substrate, a feed point common to both said first and second radiating elements, and an intermediate conductor disposed between said first radiating element and said second radiating element, said dual antenna being disposed on an external substrate different from said first or second substrates, the method comprising:
- placing a conductive trace on said external substrate in signal communication with the feed point of the dual antenna; and
operating said dual antenna within said first and second bands.
2 Assignments
0 Petitions
Accused Products
Abstract
A dielectric dual antenna (300) intended especially for small-sized radio apparatuses, with one partial antenna (310) of which is implemented the lower operating band of the antenna and with the second partial antenna (320) the upper operating band. The partial antennas have a shared feed point (FP) in the antenna structure, e.g. at the end of a radiating element (312) of one partial antenna, in which case the other partial antenna receives its feed galvanically through said radiating element by a short intermediate conductor (332). The partial antennas are located so that their substrates (311, 321) are heads face to face, and the main directions of the radiating elements i.e. the conductive coatings of the substrates starting from the shared feed point are opposing. The tunings of the partial antennas corresponding to different operating bands are obtained independent from each other without discrete matching components.
61 Citations
28 Claims
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1. A method of operating a dual antenna capable of operating in first and second frequency bands the antenna comprising a first radiating element disposed on a first substrate, a second radiating element disposed on a second substrate, a feed point common to both said first and second radiating elements, and an intermediate conductor disposed between said first radiating element and said second radiating element, said dual antenna being disposed on an external substrate different from said first or second substrates, the method comprising:
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placing a conductive trace on said external substrate in signal communication with the feed point of the dual antenna; and operating said dual antenna within said first and second bands. - View Dependent Claims (2, 3, 4, 5)
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6. A dual antenna comprising:
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a first partial antenna to implement a lower operating band of the antenna; and a second partial antenna to implement an upper operating band; wherein both partial antennas comprise a respective dielectric substrate and as its conductive coating at least one radiating element, wherein both substrates have a first and a second head, a top, a bottom and a plurality of side surfaces the direction of the plurality of side surfaces normal of the heads being the longitudinal direction of the substrate; and wherein the substrates of the partial antennas are located their first heads face to face, they have substantially the same longitudinal direction, and the partial antennas have a shared feed point in a coupling space defined by the first heads at the end of the radiating element on the side of the first head of the substrate of one partial antenna, and the other partial antenna gets its feed through an intermediate conductor which extends in said coupling space from last-mentioned radiating element to a radiating element of the latter partial antenna. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A dual antenna configured to be disposed on an external substrate, the antenna comprising:
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a first radiating element disposed on a first substrate; a second radiating element disposed on a second substrate; a feed point common to both said first and second radiating elements; an intermediate conductor disposed between said first radiating element and said second radiating element; and a conductive trace on said external substrate electrically coupled with the feed point; wherein said intermediate conductor is configured to tune the first radiating element independently from the second radiating element, said tuning being effected without the use of discrete matching components.
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17. A dual antenna, comprising:
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a first radiating element disposed on a first portion of a first substrate; a second radiating element disposed on a second portion of a second substrate; a feed point common to both said first and second radiating elements; and an intermediate conductor disposed between said first radiating element and said second radiating element; wherein; the first and second substrates are part of a unitary substrate; and at least a portion of the unitary substrate between the first and second radiating elements is free from conductive material so as to electrically isolate the first radiating element from the second radiating element. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A dual antenna, comprising:
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a first radiating element disposed on a first substrate; a second radiating element disposed on a second substrate; a feed point common to both said first and second radiating elements; and an intermediate conductor disposed between said first radiating element and said second radiating element; wherein; the first and second substrates comprise a unitary substrate; and the intermediate conductor comprises a conductive coating on a surface of the unitary substrate, said intermediate conductor extending from the first radiating element to the second radiating element. - View Dependent Claims (24, 25)
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26. A dual antenna, comprising:
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a first radiating element disposed on a first substrate; a second radiating element disposed on a second substrate; a feed point common to both said first and second radiating elements; and an intermediate conductor disposed between said first radiating element and said second radiating element; wherein the first and second substrates comprise a unitary substrate; and the intermediate conductor comprises a conductive coating disposed on an inner surface of a hole formed in said unitary substrate, the conductive coating extending from the first radiating element to the second radiating element. - View Dependent Claims (27, 28)
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Specification