US 9,070,966 B2Granted

Multi-band, wide-band antennas

AssigneeLaird Technologies, Inc.

InventorsKok Jiunn Ng, Kean Meng Lim

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Abstract

Disclosed herein are various exemplary embodiments of multi-band, wide-band antennas. In exemplary embodiments, the antenna generally includes an upper portion and a lower portion. The upper portion includes two or more upper radiating elements and one or more slots disposed between the two or more upper radiating elements. The lower portion includes three or more lower radiating elements and one or more slots disposed between the three or more lower radiating elements. A gap is between the upper and lower portions such that the upper radiating elements are separated and spaced apart from the lower radiating elements. The antenna may be configured such that coupling of the gap and the upper and lower radiating elements enable multi-band, wide-band operation of the antenna within at least a first frequency range and a second frequency range, with the upper radiating elements operable as a radiating portion of the antenna, the lower radiating elements operable as a ground portion, and the gap operable for impedance matching.

Claims20

Dependent claims

A multi-band, wide-band antenna comprising:

an upper portion including two or more upper radiating elements and one or more slots disposed between the two or more upper radiating elements;
a lower portion including two or more lower radiating elements and one or more slots disposed between the two or more lower radiating elements;
a gap having two open ends between the upper and lower portions such that the upper radiating elements are separated and spaced apart from the lower radiating elements, the gap including a plurality of rectangular portions defining a stepped configuration,
wherein the plurality of rectangular portions of the gap comprises a first rectangular portion and a second rectangular portion that is narrower than the first rectangular portion, the second rectangular portion extending from an edge of the antenna towards an opposite edge of the antenna to intersect with the first rectangular portion;
whereby coupling of the gap and the upper and lower radiating elements enable multi-band, wide-band operation of the antenna within at least a first frequency range and a second frequency range, with the upper radiating elements operable as a radiating portion of the antenna, the lower radiating elements operable as a ground portion, and the gap operable for impedance matching.

2 more elements

A multi-band, wide-band antenna comprising:

an upper portion including two or more upper radiating elements and one or more slots disposed between the two or more upper radiating elements;
a lower portion including two or more lower radiating elements and one or more slots disposed between the two or more lower radiating elements;
a gap between the upper and lower portions such that the upper radiating elements are separated and spaced apart from the lower radiating elements, the gap including a plurality of rectangular portions and having two open ends;
wherein the plurality of rectangular portions of the gap comprises a first rectangular portion and a second rectangular portion that is narrower than the first rectangular portion, the second rectangular portion extending from an edge of the antenna towards an opposite edge of the antenna to intersect with the first rectangular portion;
wherein the one or more slots of the upper portion includes a plurality of rectangular slot portions;
and
wherein the one or more slots of the lower portion include a plurality of rectangular slot portions;
whereby the antenna is operable within at least a first frequency range and a second frequency range, with the upper radiating elements operable as a radiating portion of the antenna, the lower radiating elements operable as a ground portion, and the gap operable for impedance matching.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/877,715Filed 5 Oct 2010
Published: US 2013/0187820 A125 Jul 2013
Granted: 30 Jun 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H01Q 5/25
Characterised by the operating wavebands: ultra-wideband [UWB] systems, e.g. multiple resonance systems; Pulse systems
H01Q 5/15
Resonant antennas: for operation of centre-fed antennas comprising one or more collinear, substantially straight or elongated active elements
H01Q 5/357
For different propagation modes: using a single feed point
H01Q 5/371
Creating multiple current paths: branching current paths