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Advanced Search Results For "TK5101-6720"

1 - 10 of 22,941 results for
 "TK5101-6720"
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Underdetermined direction of arrival estimation of wideband signal based on sparse array

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 646-653 (2022)

Abstract:Abstract To solve the problem of the mismatch of the wideband underdetermined direction of arrival (DOA) estimation under the condition of the On‐grid model, this paper extends the narrowband Off‐Grid model to wideband and proposes a new DOA estimation...

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A single‐layer circularly polarized planar lens antenna at millimetre‐wave

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 668-678 (2022)

Abstract:Abstract This paper proposes a novel single‐layer planar lens antenna with the capability of keeping circular polarization (CP) of the incoming CP wave and enhanced gain for millimetre‐wave applications. Because of the symmetric design of the lens unit...

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A drawer‐conformal radio‐frequency identification antenna with vertically polarised quasi‐endfire radiation

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 660-667 (2022)

Abstract:Abstract A radio‐frequency identification antenna with a quasi‐endfire radiation beam and a vertical polarisation is presented. A size‐reduced magnetic dipole is used as the radiation source whose radiating waves are restricted by a dual‐layer metasurf...

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Electromagnetic wave propagation through composite building materials in urban environments at mid‐band 5G frequencies

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 627-638 (2022)

Abstract:Abstract In an urban built city environment, the performance of electromagnetic (EM) wave propagation through building materials poses a new set of challenges to radio frequency engineers in the prediction of the 5G‐network coverage planning. We propos...

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Synthesis‐free backscatter directional modulation communication using Van‐Atta arrays

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 654-659 (2022)

Abstract:Abstract Backscatter communication, an emerging ultra‐low‐power wireless communication paradigm, has been studied as a promising solution for wireless communications in some Internet‐of‐Things (IoT) applications. The required ubiquitous data transmissi...

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A low‐cost phased array antenna with axially loaded dielectric laminas

Publication Type:Academic Journal

Source(s):IET Microwaves, Antennas & Propagation, Vol 16, Iss 10, Pp 639-645 (2022)

Abstract:Abstract A low‐cost phased array antenna, consisting of waveguide radiators, dielectric phase shifters and a cooperated feeding network, is proposed and experimentally validated in this paper. The required progressive phases are obtained by controlling...

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Design of dynamic active‐passive beamforming for reconfigurable intelligent surfaces assisted hybrid VLC/RF communications

Publication Type:Academic Journal

Source(s):IET Communications, Vol 16, Iss 13, Pp 1531-1544 (2022)

Abstract:Abstract The hybrid visible light communication (VLC)/radio frequency (RF) communications are investigated with the aid of reconfigurable intelligent surfaces (RISs) in dynamic wireless networks, where the RIS access selection processes of VLC/RF users...

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Multi‐path separation and parameter estimation by single DMA in fading channel

Publication Type:Academic Journal

Source(s):IET Communications, Vol 16, Iss 13, Pp 1475-1485 (2022)

Abstract:Abstract The propagation of electromagnetic waves will produce multi‐path fading of wireless channel, which degrades communication performance substantially. If multi‐path can be separated, better signal transmission and reception strategies can be des...

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RIS‐assisted secure UAV communications with resource allocation and cooperative jamming

Publication Type:Academic Journal

Source(s):IET Communications, Vol 16, Iss 13, Pp 1582-1592 (2022)

Abstract:Abstract Unmanned aerial vehicles (UAVs) are widely used in wireless communication networks due to their rapid deployment and high mobility. However, in practical scenarios, the existence of obstacles and eavesdroppers will seriously interfere with the...

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Optimal design for the artificial‐noise‐aided IRS‐MIMO‐OFDM secure communications

Publication Type:Academic Journal

Source(s):IET Communications, Vol 16, Iss 13, Pp 1570-1581 (2022)

Abstract:Abstract This paper discusses an artificial noise‐aided intelligent reflecting surface‐MIMO–OFDM system physical layer secure communication, in which two cases for the intelligent reflecting surface reflection coefficient models are considered separate...

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