Multibeam array antennas with stable beam peaks and beam widths through multiplexers
AssigneeCommunication Components Antenna Inc.
InventorLin-Ping Shen
Life of this patent
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Abstract
A multibeam antenna operating over a plurality of frequency bands includes a plurality of planar multibeam arrays, each array corresponding to an operating frequency band ΔFi within the plurality of the frequency bands. Each array has a plurality of antenna elements for transmitting and receiving signals where distances between the antenna elements on each of the arrays is arranged as a function of a center frequency fi of the operating frequency band. The multibeam antenna has a plurality of multiplexers, each coupled to plurality of planar multibeam arrays, each of the multiplexers having a common beam port for sending and receiving the signals through the antenna elements.
Claims14
A multibeam antenna operating over a plurality of frequency bands comprising:
- a plurality of planar multibeam arrays, each array corresponding to an operating frequency band ΔFi within said plurality of said frequency bands, each array having a plurality of antenna elements for transmitting and receiving signals wherein distances between said antenna elements on each of said arrays is arranged as a function of a center frequency fi of said operating frequency band;
- and
- a plurality of multiplexers, each coupled to beam ports of said plurality of planar multibeam arrays,
- each of said plurality of multiplexers has a common beam port for sending and receiving said signals through said antenna elements, wherein beam peaks and beam widths of said multibeam antenna remain substantially the same across said plurality of frequency bands.
Dependencies are inferred from the claim text.