Design of series-fed, single-layer, and wideband millimeter-wave microstrip arrays

YQ Guo, YM Pan, SY Zheng - IEEE Transactions on Antennas …, 2020 - ieeexplore.ieee.org
A series-fed millimeter-wave (mm-wave) microstrip linear array with single-layer structure
and wide operating bandwidth is proposed and investigated. The antenna array simply …

Multiplexed OAM wave communication with two-OAM-mode antenna systems

D Liu, L Gui, Z Zhang, H Chen, G Song, T Jiang - IEEE Access, 2018 - ieeexplore.ieee.org
In order to improve the channel capacity, waves carrying orbital angular momentum (OAM)
in communication systems have attracted much attention. A two-OAM-mode antenna system …

System and method for combining MIMO and mode-division multiplexing

S Ashrafi, RD Linquist - US Patent 9,998,187, 2018 - Google Patents
A communications system includes first signal processing circuitry for receiving a plurality of
input data streams and applying a different orthogonal function to each of the plurality of …

Re-generation and re-transmission of millimeter waves for building penetration

S Ashrafi - US Patent 10,014,948, 2018 - Google Patents
A system for enabling signal penetration into a building includes first circuitry, located on an
outside of the building, that receives millimeter wave signals and converting the millimeter …

Re-generation and re-transmission of millimeter waves for building penetration

S Ashrafi - US Patent 10,153,845, 2018 - Google Patents
A system for enabling signal penetration into a building comprising a receiver located on an
outside of the building for receiving millimeter wave signals. At least one frequency …

Generation of orbital angular momentum beam with circular polarization ceramic antenna array

K Bi, J Xu, D Yang, Y Hao, X Gao… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
Orbital angular momentum (OAM) beams can be generated at many microwave frequencies
by using antenna array. However, the complexity of the system and inability to transmit over …

Re-generation and re-transmission of millimeter waves for building penetration

S Ashrafi - US Patent 10,374,710, 2019 - Google Patents
A system for enabling signal penetration into a building includes first circuitry, located on an
outside of the building, for receiving signals at a first frequency that experiences losses …

Systems and methods for focusing beams with mode division multiplexing

S Ashrafi, R Linquist, N Ashrafi - US Patent 9,413,448, 2016 - Google Patents
A system for focusing a multiplexed beam includes OAM signal processing circuitry for
generating a multiplexed OAM multiplexed signal. A plurality of antennas comprises an …

Characterization of Compact and Efficient Patch Antenna with single inset feeding technique for Wireless Applications

S Palanivel Rajan, M Paranthaman - Journal of applied research and …, 2019 - scielo.org.mx
Microstrip patch antenna has made great progress in recent years. Wireless applications
including radars, cellular phones, wireless sensor networks, and in medical applications are …

Spectroscopy with correlation matrices, ratios and glycation

S Ashrafi - US Patent 10,209,192, 2019 - Google Patents
NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C (= O) C (NC (= O)
C (CCC (N)= O) NC (= O) C (CCC (O)= O) NC (= O) C (C (C) C) NC (= O) C (NC (= O) CN) C …