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Patent Agency Ranking
公开(公告)号：US10431870B2
公开(公告)日：2019-10-01
申请号：US15483827
申请日：2017-04-10
Applicant: City University of Hong Kong
Inventor： Quan Xue , Liang Wu , Shaowei Liao
IPC: H01Q13/10 , H01Q1/22 , H01Q21/06 , H01Q1/38 , H01Q1/48 , H01Q21/00 , H01Q11/12 , H01Q5/00 , H01Q1/24
Abstract: Systems and methods which provide an antenna in a chip-and-package distributed configuration as disclosed. Chip-and-package distributed antenna configurations of embodiments comprise an on-chip integrated circuit component and an in-package component. For example, embodiments of a chip-and-package distributed antenna comprise an exciting element on chip (i.e., formed as an integrated component in an integrated circuit die) and a primary radiator in package (i.e., disposed within an package while being external to the integrated circuit die). The on-chip exciting element may be configured to excite electromagnetic waves and to provide relatively wide bandwidth operation while occupying a relatively small area of the die. The in-package primary radiator may be configured to leverage the relatively large space in the integrated circuit product package to enhance the gain and/or configure the radiation pattern of RF signals with respect to the exciting element.
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公开(公告)号：US20180351510A1
公开(公告)日：2018-12-06
申请号：US15611496
申请日：2017-06-01
Applicant: City University of Hong Kong
CPC classification number: H03K3/0315 , H03B5/1215 , H03B5/1228 , H03B27/00 , H03B2200/0074
Abstract: Systems and methods which provide oscillator configurations implementing phase rotation (rotated-phase-tuning (RPT)) are described. Embodiments of a RPT oscillator may employ phase interpolation, whereby two current vectors having different phases are superimposed to provide a resultant current vector having a tunable phase to vary a phase shift in a feedback loop of an oscillator circuit and correspondingly tune the oscillation frequency. Phase rotation provided by an RPT oscillator configuration of embodiments inserts a negative phase shift (rotation phase shift) into each of two current branches to rotate the phase shifts of a phase-tuning technique, such as for avoiding phase ambiguity with respect to tunable oscillation frequencies. RPT oscillators of embodiments are varactor-less and are particularly well suited for operation to provide output frequencies in the millimeter-wave (mmW) band.
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公开(公告)号：US09923599B1
公开(公告)日：2018-03-20
申请号：US15492876
申请日：2017-04-20
Applicant: City University of Hong Kong
CPC classification number: H04B3/06 , H01Q21/20 , H03B5/1215 , H03B5/1228 , H03B5/1852 , H03B27/00 , H03B2200/0074 , H03B2200/0084 , H04B3/466
Abstract: Systems and methods which provide injection-locked circuit configurations for radiating signals in the terahertz frequency range with improved phase noise and signal output power are described. Embodiments of the invention provide an injection-locked terahertz radiator system comprising a half-quadrature voltage controlled oscillator (HQVCO), a plurality of injection-locked frequency quadruplers (ILFQs), and antenna elements. In operation according to embodiments, injection-locking provided by the ILFQs may be utilized to facilitate individual optimization of the output power and the phase noise. Intrinsic-delay compensation and harmonic boosting techniques may be utilized in configurations of the foregoing injection-locked terahertz radiator system to optimize the phase noise of the HQVCO and the output power of the ILFQs, respectively. Embodiments of an injection-locked terahertz radiator system herein are implemented as a fully integrated solution with compact form factor, providing high reliability and low cost.
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公开(公告)号：US10382015B2
公开(公告)日：2019-08-13
申请号：US15611496
申请日：2017-06-01
Applicant: City University of Hong Kong
Abstract: Systems and methods which provide oscillator configurations implementing phase rotation (rotated-phase-tuning (RPT)) are described. Embodiments of a RPT oscillator may employ phase interpolation, whereby two current vectors having different phases are superimposed to provide a resultant current vector having a tunable phase to vary a phase shift in a feedback loop of an oscillator circuit and correspondingly tune the oscillation frequency. Phase rotation provided by an RPT oscillator configuration of embodiments inserts a negative phase shift (rotation phase shift) into each of two current branches to rotate the phase shifts of a phase-tuning technique, such as for avoiding phase ambiguity with respect to tunable oscillation frequencies. RPT oscillators of embodiments are varactor-less and are particularly well suited for operation to provide output frequencies in the millimeter-wave (mmW) band.
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公开(公告)号：US20180294545A1
公开(公告)日：2018-10-11
申请号：US15483827
申请日：2017-04-10
Applicant: City University of Hong Kong
Inventor： Quan Xue , Liang Wu , Shaowei Liao
CPC classification number: H01Q1/2283 , H01Q1/24 , H01Q1/38 , H01Q1/48 , H01Q5/00 , H01Q11/12 , H01Q13/10 , H01Q13/106 , H01Q21/00 , H01Q21/0075 , H01Q21/064
Abstract: Systems and methods which provide an antenna in a chip-and-package distributed configuration as disclosed. Chip-and-package distributed antenna configurations of embodiments comprise an on-chip integrated circuit component and an in-package component. For example, embodiments of a chip-and-package distributed antenna comprise an exciting element on chip (i.e., formed as an integrated component in an integrated circuit die) and a primary radiator in package (i.e., disposed within an package while being external to the integrated circuit die). The on-chip exciting element may be configured to excite electromagnetic waves and to provide relatively wide bandwidth operation while occupying a relatively small area of the die. The in-package primary radiator may be configured to leverage the relatively large space in the integrated circuit product package to enhance the gain and/or configure the radiation pattern of RF signals with respect to the exciting element.
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