Compact, multi-port, MIMO antenna with high port isolation and low pattern correlation and method of making same
First Claim
Patent Images
1. An antenna comprising:
- a frustoconical ground support having a first contoured surface;
an electrically conductive, endless element mounted at a distance from the ground support, the endless element having a second contoured surface that is complementarily contoured to the first contoured surface; and
a trio of ports arranged along the endless element for conveying radio frequency signals in an operating band of frequencies, the ports being successively spaced apart along the endless element by a spacing defined by a wavelength associated with the operating band.
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Abstract
An antenna includes a ground support, an electrically conductive, endless element mounted at a distance relative to the ground support, and a trio of ports arranged along the endless element for conveying radio frequency signals in an operating band of frequencies. The antenna is compact and has high port isolation and low pattern correlation due to successively spacing the ports apart along the endless element by a spacing of one-half of a guided wavelength at a center frequency of the operating band.
81 Citations
16 Claims
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1. An antenna comprising:
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a frustoconical ground support having a first contoured surface; an electrically conductive, endless element mounted at a distance from the ground support, the endless element having a second contoured surface that is complementarily contoured to the first contoured surface; and a trio of ports arranged along the endless element for conveying radio frequency signals in an operating band of frequencies, the ports being successively spaced apart along the endless element by a spacing defined by a wavelength associated with the operating band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of making an antenna comprising:
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mounting an electrically conductive, conically-shaped endless element at a distance from a frustoconical ground support having a first contoured surface; arranging a trio of ports along the endless element for conveying radio frequency signals in an operating band of frequencies; and successively spacing the ports apart along the endless element by a spacing defined by a wavelength associated with the operating band, the endless element have a second contoured surface that is complementarily contoured to the first contoured surface. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification