Abstract
| Original language | English |
|---|---|
| Patent number | WO2018215647 |
| Publication status | Published - 29 Nov 2018 |
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Keywords
- Millimeter-Wave
- phased array
- Wireless communication
- interpolation
- delay
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Efficient wideband phased antenna array using true time delays and interpolation. / Baltus, P.G.M. (Inventor); Matters - Kammerer, M. (Inventor); Koonen, A.M.J. (Inventor); Wang, B. (Inventor).
Patent No.: WO2018215647.Research output: Patent › Patent publication
TY - PAT
T1 - Efficient wideband phased antenna array using true time delays and interpolation
AU - Baltus, P.G.M.
AU - Matters - Kammerer, M.
AU - Koonen, A.M.J.
AU - Wang, B.
PY - 2018/11/29
Y1 - 2018/11/29
N2 - A wireless front-end includes a phased antenna array [400], a weighting factor computation circuit [434], and hybrid time delays including a set of variable true time delays [420,422] and a set of phase-shifting interpolators [418] that interpolate between the true time delays using weighting factors computed by the weighting factor computation circuit [434], where the weighting factor computation circuit uses non-orthogonal base vectors to compute the weighting factors. The phase-shifting interpolators [418] may be implemented using signal splitters [410], weighting multipliers [412], and signal combiners [414]. The weighting multipliers [412] may be implemented using variable gain amplifiers, variable attenuators, or switched resistor networks. The number of variable true time delays [420,422] is preferably less than half the number of antenna elements in the phased antenna array [400]. In the case were the phased antenna array is a linear array, the number of variable true time delays may be just one. In the case where the phased antenna array is a 2-dimensional array, the number of variable true time delays may be just two, but preferably three.
AB - A wireless front-end includes a phased antenna array [400], a weighting factor computation circuit [434], and hybrid time delays including a set of variable true time delays [420,422] and a set of phase-shifting interpolators [418] that interpolate between the true time delays using weighting factors computed by the weighting factor computation circuit [434], where the weighting factor computation circuit uses non-orthogonal base vectors to compute the weighting factors. The phase-shifting interpolators [418] may be implemented using signal splitters [410], weighting multipliers [412], and signal combiners [414]. The weighting multipliers [412] may be implemented using variable gain amplifiers, variable attenuators, or switched resistor networks. The number of variable true time delays [420,422] is preferably less than half the number of antenna elements in the phased antenna array [400]. In the case were the phased antenna array is a linear array, the number of variable true time delays may be just one. In the case where the phased antenna array is a 2-dimensional array, the number of variable true time delays may be just two, but preferably three.
KW - Millimeter-Wave
KW - phased array
KW - Wireless communication
KW - interpolation
KW - delay
M3 - Patent publication
M1 - WO2018215647
ER -