A novel compact ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna system with dual polarization and band-rejection capabilities is proposed. The proposed MIMO consists of two quasi-self-complementary (QSC) elements. elements are arranged orthogonally fed perpendicularly to obtain diversity. High isolation can be achieved without additional decoupling structure owing the inherent advantage self-complementary structure. Notched band at WLAN realized by etching a bent slit in...

The rapid development of modern communication systems propels the demand high performance and miniaturization RF/microwave components. Power dividers filters are indispensable circuit components in amplifiers antenna feed-networks which occupy large footprint broads, particularly at low frequency. purpose this study is to initiate a new type planar transmission line with unique dual signal-path characteristics ultimately achieve miniaturization. In paper, novel technique consolidating...

A low-profile microstrip antenna with stable radiation pattern in a relatively wide band is presented for 5G operation. Four resonant modes different frequencies are integrated single structure to enhance the bandwidth gain, and well matched by introducing folded walls. An impedance of 58.3% has been achieved from 2.84 5.17 GHz compact 0.84λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> × 0.68λ 0.06λ , where λ free-space wavelength at...

A dual circularly polarized (CP) magnetoelectric dipole antenna is presented in this article. The dual-CP was devised to form a circular ring shape and fabricated using 3-D printing technology. To overcome the conflict between high (broadside) gain wide (half-power) beamwidth, new beamwidth broadening technique proposed. Twelve metacolumns were placed evenly along circumference close ring-shaped dipole. design approach elaborated, where number size of meta-columns decided according curves....

A tri-polarized antenna with diverse radiation characteristics is proposed in this paper. This design mainly consists of two pairs loop radiating dipoles and an omnidirectional monopole element, which are used for the fifth generation (5G) vehicle to everything (V2X) communications, respectively. By adding eight inverted L-shaped patches unequal sizes around dipoles, wide beamwidths both E- H-planes can be obtained across desired lower upper frequency bands. Furthermore, by employing...

A dual-wideband dual-polarized antenna using metasurface for the fifth generation (5G) millimeter wave (mm-wave) communications is proposed. It designed and analyzed based on characteristic mode theory (CMT). The proposed mainly composed of a 3×3 square-patch, in which its four corner patches are further sub-divided into 4×4 sub-patch array, while size other edge reduced center patch etched with pair orthogonal slots. By doing so, side lobe level can be effectively main beam radiation...

In this communication, a dual-polarized filtering magneto-electric dipole (FMED) antenna and arrays are proposed for 5G n258 (24.25–27.5 GHz) operations. The FMED was devised to incorporate mechanisms using built-in substrate integrated waveguide (SIW)-based filter plus slot-and-notch etching on the element. As such, lower upper radiation cutoffs nulls were produced tuned, independently. To overcome problem of "high selectivity" that has not been correctly quantified thus no comparison, new...

A substrate integrated magneto-electric (ME) dipole antenna with metasurface is proposed for the 5G/WiMAX/WLAN/X-band MIMO applications. In order to provide a low profile, radiated electric dipoles shorted wall are used in multi-layer substrates at different heights. Owing coordination of and ME dipole, dual wideband high gain have been obtained. As result 3-D hexagonal structure, good envelope correlation coefficient mean effective performance can be achieved by system. The element an...

This contribution presents a novel 3-D circular conformal MIMO antenna system composed of three magneto-electric dipoles (MED) antennas. The single MED element was delicately designed to include one main (lower-band) dipole and two auxiliaries (upper-band) in order achieve the dual-band radiation. proposed owns low-profile geometry but features wide H-plane beamwidth (minimum 103°). By embedding metamaterial broadside-coupled E-shaped unit cells into magnetic dipole, height can be...

A compact wideband circularly polarized (CP) magneto-electric (ME) dipole antenna array is proposed. In order to achieve size and characteristics, a novel substrate integrated waveguide (SIW) coaxial transition (SCT) was designed connect the lightning-shaped ME-dipole element an SIW feeding network. Particularly, SCT-based power divider network together with sequential-rotation (SR) technique employed improve axial ratio (AR) bandwidth of 4×4 array. The prototype fabricated verify design....

A dual-band dual-polarized stacked microstrip antenna with high-isolation and band-notch characteristics is proposed. The proposed comprised of three layers substrate. To obtain high isolation between two input ports, a pair orthogonal differentially driven feeding lines are printed on the top side bottom layer. yield desired lowerand upper-frequency bandwidths for 5G microcell communications, sets 2×2 radiating patch arrays second layer substrates, respectively. Compared conventional...

In this article, a three-element circularly polarized multiple-input-multiple-output (CP-MIMO) antenna array with self-decoupled probing method is introduced. Three unidirectional radiated Guo-shaped patch antennas were arranged in triangular lattice and excited by L-shaped feeding probes at different locations respect to the center. Meanwhile, patches themselves remained artistic placed upward position. Namely, main motivation generate CP directional beams without requiring orthogonal...

In the context of land scarcity and high-density urban areas, adaptive reuse abandoned historical industrial buildings plays a critical role in achieving sustainable development goals. This study proposes sustainability assessment framework for as exhibition spaces within development, addressing multiple dimensions sustainability, including building’s physical structure, economic factors, environmental impact, social considerations, governance. The consists 55 design indexes, categorized...

A novel dual-wideband complementary patch antenna with a dual-layer cross-magneto-electric (ME)-dipole structure is proposed for 2G/3G/LTE/WLAN applications. In order to provide and characteristics, an inverted U-shaped feeding introduced feed cross-ME-dipole patches. The upper-layer patches mainly serve the upper frequency band, while lower-layer ones chiefly work lower band. addition, hook-shaped are placed on corner of electric dipoles broaden impedance bandwidth Moreover, box-shaped...

ABSTRACT In this letter, a compact ultrawideband polarization diversity MIMO antenna system with dual band‐notched characteristics is proposed. The proposed element consists of metal ground stepped slot etched on it. fed by 50‐Ω microstrip line the top layer. Dual notched bands (5G WLAN and 8G X band) are achieved etching an open ended split ring resonator in plane, respectively. Two identical elements arranged orthogonally perpendicularly to obtain enhance port isolation. A simple Y‐shaped...

A low-profile differentially fed dual-polarized antenna with high gain and isolation is proposed for fifth-generation (5G) microcell communications. By introducing two pairs of symmetrical meandering conductors to connect both ends the radiating cross slots, a compact-size wide bandwidth can be achieved. further adopting an artificial magnetic conductor-backed (AMC) reflector that arranged below patches distance 6 mm, profile reduced from 0.25λ <sub...

A dual-polarized wideband omnidirectional ceiling antenna with low gain variations (GVs) for 2G/3G/LTE/5G sub-6 GHz indoor applications is presented. The vertical-polarized (VP) element that arranged in the center composed of a pair orthogonal semicircular plates and top-loaded circular brass disk, whereas horizontal-polarized (HP) comprised four printed dipoles truncated corners, arc-shaped parasitic patches around dipoles, 1-to-4 power divider feeding network on bottom. “hook”-shaped stubs...

A dual-polarized (DP) antenna with a conical radiation pattern and high gain characteristics is proposed. It mainly comprised of horizontally polarized (HP) array, vertically (VP) element, fence, feeding network. In the HP direction, rotatable stacked substrate-integrated waveguide (SIW)-to-coaxial-to-SIW transition (SCST) meticulously designed to yield omnidirectional low variations transmission loss. As for VP two orthogonal substrates that are arranged above radiating element act as...

A low-profile and wideband patch antenna is proposed for base station applications. In order to realize a wide band, two types of slots are adopted three resonant modes constructed within band interest. The mode analysis conducted clarify the performance. designed has an impedance bandwidth 52.7% (from 1.62 2.78 GHz) with structure 0.7λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0</sub> × 0.47λ 0.084λ , where λ free-space wavelength at...

A novel linearly dual-polarized antenna array with triple elements is proposed for beamwidth reconfigurable base-station communications. By cutting off the arc-shaped corners on radiated patches, single unit can obtain a wide bandwidth of 78.4% SWR ≤ 2, ranging from 1.63 to 3.73 GHz 2G/3G/LTE and 3.5-GHz C-band (3.4-3.6 GHz) applications. In addition, box-shaped reflector inherent characteristic ME dipole antenna, average gain element about 11.5 dBi. Finally, by employing two-stage circuit...

A compact dual-polarized dual-band omnidirectional antenna with high gain is presented for 2G/3G/LTE communications, which comprise two horizontal polarization (HP) and a vertical (VP) elements. The upper HP element consists of four pairs modified printed magneto-electric (ME) dipoles that are fed by four-way power divider feeding network, eight pieces arc-shaped parasitic patches on both sides the circular circuit board alternately. network together ME mainly provide stable 360° radiation...

A dual polarized magneto-electric dipole antenna with wide beamwidths is proposed and investigated. Dual-layer U-shaped electric dipoles are cooperated orthogonal η-shaped feeding line to obtain wideband features for 5G microcell applications. In addition, modified tetrahedral ground together dual-layer three-element that arranged as a triangle array used provide H-plane radiation characteristics. By doing so, large coverage area reduced number of antennas can be achieved at the same time....

Terahertz (THz) vortex waves carrying orbital angular momentum (OAM) hold great potential in dealing with the capacity crunch wireless high-speed communication systems. Nevertheless, it is quite a challenge for widespread applications of OAM THz regime due to beam divergence and stringent alignment requirement. To address this issue, an all-dielectric lens (ADL) proposed arbitrary manipulation quasi-nondiffractive (QTOWs). On basis concept optical conical multivorticity metasurface, number,...

ABSTRACT A compact coplanar waveguide (CPW) fed ultrawideband (UWB) slot antenna for multiple‐input‐multiple‐output (MIMO)/diversity applications is presented in this letter. The consists of two waveguides (CPWs) feeding circular radiating elements and a protruded stub, which placed at between them. are arrange orthogonally perpendicularly to obtain polarization diversity. Notched band X‐band communication downlinks achieved by etching split ring resonator slots the radiators other notched...