A coplanar waveguide (CPW) fed flexible interconnected 4-port MIMO antenna is proposed for UWB, X, and Ku band applications having a size <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$0.67\lambda \times 0.81\lambda 0.0028\lambda $ </tex-math></inline-formula> (at 3.58 GHz). The parameters are characterized by using sets of real measurements to validate the design modelling. precise milling machine used...

A flexible transparent wideband four-element MIMO antenna with a connected ground plane is proposed numerical computation and experimental measurement studies. The optical transparency obtained using conductive oxide material AgHT-4 Melinex substrate. radiating elements are in the form of circular stub-loaded C-shaped resonators, which positioned carefully structured substrate an interconnected partial L-shaped resonator, attaining overall size 0.33λ × 0.48λ at lowest operating frequency....

A compact size, coplanar waveguide (CPW) fed two-antenna multiple input output (MIMO) with high isolation and excellent impedance matching operating in n77/n78/n79 5G NR sub-6 GHz/Wi-Fi-5/V2X/DSRC/Wi-Fi-6/INSAT-C is proposed for future wireless applications. Each antenna element a CPW-fed type composed of an “inverted-A,” “y-shaped,” “small extended stub” structures. The two-antennas are deployed the same orientation at edge-to-edge distance 0.06λ (λ represents free-space wavelength 3.70...

Multiple-input multiple-output (MIMO) antennas with four and eight elements having connected grounds are designed for ultra-wideband applications. Careful optimization of the lines connecting leads to reduced mutual coupling amongst radiating patches. The proposed antenna has a modified substrate geometry comprises circular arc-shaped conductive element on top ground plane geometry. Polarization diversity isolation achieved by replicating orthogonally forming plus shape structure. consists...

A compact, dual polarized, multiband four-port flexible Multiple Input Output (MIMO) antennae with the connected ground and high isolation is designed computation experimental measurement studies. All four monopole radiators are embedded decagon-shaped FR-4 substrate an outer radius of 10 mm in order to accomplish circularly polarized (CP) radiations, bandwidth enhancement, compact size only 45×38×0.2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...

A dual-band Multiple Input Output (MIMO) antenna with low mutual coupling is analyzed and studied for Fifth Generation (5G) Sub-6 GHz Wireless Fidelity (Wi-Fi) 6E frequency-band applications. Each of the identical monopole radiators consists a rectangular patch, inverted-E, asymmetrical T-shaped strip to generate 5G Wi-Fi frequency bands. The deployment horizontally end-to-end separation 5mm makes compact an overall dimension <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML"...

A compact quad-port multiple-input–multiple-output (MIMO) antenna with dual polarization is proposed. Each of the four elements features a modified rectangular radiator backed by partial ground plane and fed T-shaped microstrip line. The are interconnected an X-shaped strip isolated plus-shaped structure, resulting in over −18 dB isolation. With small footprint only 36 mm × 27 mm, exhibits 10 impedance bandwidth completely overlapping 3 axial-ratio 19.32% (7.90–9.59 GHz). Additionally, it...

A single radiator that is a part of four-port diversity Multiple-Input Multiple-Output (MIMO) antenna design composed four octagonal rings embedded between the two opposite sides T-shaped conductive layer surrounded by inverted angular edge cut L-shaped and E-shaped structures. The radiators are placed at corners with common ground center smartphone to form four-element mobile MIMO antenna. printing carried out on flexible polyamide substrate (dielectric constant = 3.5 loss tangent 0.0027)...

A tapered symmetrical coplanar waveguide (S-CPW) fed monopole antenna is initially studied. To achieve multiband characteristics, the radiating element of this loaded with multiple narrow slots and slotted stubs (MSS). The designed slot-loading further transformed into a two-antenna MIMO type gap distance only 0.12λ (at 5 GHz), thus it has small overall size 32 × 20 0.8 mm3. By deploying five concentric ring elements between two adjacent elements, desirable isolation better than dB yielded....

A broadband and compact size circularly polarized (CP) two-port multiple input output (MIMO) antenna with a footprint of 25 mm <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\times20$ </tex-math></inline-formula> is investigated. The designed oval-shaped MIMO employs concentric rings oval slots (CROS), along circular radiator two open-ended parallel protruded stubs. CP radiation achieved by embedding...

A novel compact fractal loaded two- and eight-element multiple input output (MIMO) with strong diversity is designed for 5G Sub 6 GHz WLAN applications. The suggested antenna manufactured on inexpensive FR4 dielectric material small size of 72 mm × 1.6 (0.792λ 0.792λ 0.0176λ, where λ calculated at a lower operating frequency). proposed layout features partially grounded, protruding T-shaped stub the underside substrate set fractally circular patch elements top. Four triangular slots ground...

A novel and compact microstrip-line fed printed antenna for wideband circular polarization (CP) radiation is proposed.The designed utilizes a crescent-shaped substrate, rotated L-shaped monopole, defected ground structure (DGS) to achieve wide 3-dB axial ratio (AR) bandwidth 10-dB impedance (ZBW) across the entire 5 GHz Wireless Local Area Network (WLAN) Vehicle Everything (V2X) operational bands.As substrate of proposed only 0.8 mm thick, it has very low profile 0.014λ in terms free space...

In this letter, a low-profile (3.5 mm) dual-band operation laptop antenna designed for wireless fidelity 6E (2.4/5/6 GHz) bands is proposed. The proposed double-slit loaded modified inverted-L (ILA) structure that can excite multifrequency mode, allowing it to fully cover the desired 5 and 6 GHz (5150–7125 MHz). To further 2.4 band (2400–2485 MHz), C-shaped coupling strip printed behind ILA. Besides exhibiting small planar size of only 22.3 mm × 3.5 allows be applied in narrow screen bezel...

A very low profile and ultra-thin "H-Shaped" antenna for IEEE 802.11a HIPERLAN 2 wireless applications in the laptop computer is developed. The designed using only a pure copper strip of size 17.5(L) × 4(W) mm2 with thickness 0.035 mm. novelty proposed that one rectangular radiating without any additional reactive components, vias or three dimensional structure. Furthermore, does not require ground plane installing laptops. comprised strip, stub, two resonating slots, namely, "X" "Y" length...

Purpose This paper aims to present a triple-band monopole antenna design of 0.2-mm thickness with an overall dimension 21 × 8 mm 2 for wireless local area network (WLAN)/worldwide interoperability microwave access (WiMAX) multiple input and output (MIMO) applications in the laptop computer. Design/methodology/approach It comprises three radiating elements, namely, strip AD (inverted C), EG J) FI U) along two rectangular open-end tuning stubs, “m” “n” size 1.5 0.9 1.8 , respectively. The...

A low-profile, compact, microstrip-fed two port MIMO antenna conforming Wi-Fi-5/Wi-Fi-6/V2X/DSRC/ INSAT-C for wireless industrial applications is proposed. In proposed antenna, the 2-antenna elements are separated by a distance of approximately 7mm, where each element induces wide resonance at 5.8 GHz with frequency range (4.85-7.32) covering 10dB impedance bandwidth above aforementioned standards. Along this, exhibits an isolation greater that 15dB throughout band, omnidirectional radiation...

A novel multifrequency printed monopole antenna applied to WLAN and WiMAX standards for futuristic wireless operations is developed. The novelty of the proposed simple design obtain multi-band operation without using any reactive components, expensive substrate or additional hardware. structure with footprint only 17.5 × 8mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> . on a FR-4 relative permittivity 4.3 loss tangent 0.025....

This paper presents six-port multiple input output antenna for hybridization of Fifth Generation (5G) and Long-Term Evolution Advanced (LTE-A) Fourth (4G) communication standards current futuristic smart phone applications. Each elements used in MIMO occupies an area 28×26 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> printed on FR-4 substrate having dimension 150×75 ×0.8 xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> which is...