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US 9,871,296 B2Granted
Mixed structure dual-band dual-beam three-column phased array antenna
AssigneeHuawei Technologies Co., Ltd.
InventorSenglee Foo
Life of this patent
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Abstract
Dual-band antenna elements can be used to construct a dual-beam three-column antenna array. The dual-band antenna elements include both a high-band and a low-band radiating element, which allows the dual-band antenna elements to radiate signals in two frequency bands. The dual-band antenna elements also include a resonating box to isolate the co-located radiating elements from one another, as well as to mitigate inter-band distortion. The dual-band antenna elements may be interleaved with single-band elements to achieve a dual-beam three-column antenna array. Individual elements in the dual-beam three-column antenna array may be separated by non-uniform offsets/spacings to achieve improved performance.
Claims20
A dual-band radiating antenna comprising:
- an antenna reflector;
- a first dual-band radiating element comprising:
- a low-band radiating portion comprising a low-band radiating patch mounted to the antenna reflector;
- and
- a high-band radiating portion positioned above the low-band radiating portion, the high-band radiating portion being fed through a first set of coupling slots, and the high-band radiating portion comprising:
- a high-band radiating patch;
- and
- a high-band back cavity positioned below the high-band radiating patch for housing components;
- a second dual-band radiating element horizontally aligned with the first dual-band radiating element;
- a first high-band radiating element horizontally aligned with and located between the first and the second dual-band radiating elements;
- a second high-band radiating element, a third dual-band radiating element, and a fourth dual-band radiating element horizontally aligned with each other, wherein the third and the fourth dual-band radiating elements are out of vertical alignment with each of the first and the second dual-band radiating elements;
- and
- a third high-band radiating element, a fourth high-band radiating element, and a fifth dual-band radiating element horizontally aligned with each other, wherein the third and the fourth high-band radiating elements are out of vertical alignment with each of the first and the second dual-band radiating elements, and are separated by a smaller spacing than the first and the second dual-band radiating elements, and wherein the fifth dual-band radiating element is located between the third and the fourth high-band radiating elements, and between the first and the second high-band radiating elements.
10 more elements
A method, comprising:
- mounting a first dual-band radiating element to an antenna reflector, wherein the first dual-band radiating element comprises:
- a low-band radiating portion comprising a low-band radiating patch mounted to the antenna reflector;
- and
- a high-band radiating portion positioned above the low-band radiating portion, the high-band radiating portion being fed through a first set of coupling slots, and the high-band radiating portion comprising:
- a high-band radiating patch;
- and
- a high-band back cavity positioned below the high-band radiating patch for housing components;
- mounting a second dual-band radiating element to the antenna reflector, the second dual-band radiating element being horizontally aligned with the first dual-band radiating element;
- mounting a first high-band radiating element to the antenna reflector, the first high-band radiating element being horizontally aligned with and being located between the first and the second dual-band radiating elements;
- mounting a second high-band radiating element, a third dual-band radiating element, and a fourth dual-band radiating element to the antenna reflector, the second high-band radiating element, the third dual-band radiating element, and the fourth dual-band radiating element being horizontally aligned with each other, wherein the third and the fourth dual-band radiating elements are out of vertical alignment with each of the first and the second dual-band radiating elements;
- and
- mounting a third high-band radiating element, a fourth high-band radiating element, and a fifth dual-band radiating element to the antenna reflector, the third high-band radiating element, the fourth high-band radiating element, and the fifth dual-band radiating element being horizontally aligned with each other, wherein the third and the fourth high-band radiating elements are out of vertical alignment with each of the first and the second dual-band radiating elements, and are separated by a smaller spacing than the first and the second dual-band radiating elements, and wherein the fifth dual-band radiating element is located between the third and the fourth high-band radiating elements, and between the first and the second high-band radiating elements.
9 more elements
Dependencies are inferred from the claim text.