An Isolation Enhanced, Printed, Low-Profile UWB-MIMO Antenna with Unique Dual Band-Notching Features for WLAN and WiMAX

Bhattacharya, Ankan; Roy, Bappadittya; Chowdhury, S. K.; Bhattacharjee, Anup Kumar

doi:10.1080/03772063.2019.1612284

Cited by 22 publications

(16 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar to protruding almost T‐shaped ground stub along with some variations like an etched slot in the T‐shaped stub, stepped T‐shaped stub, and more similar structures have been used in Bhattacharya et al. (2019), Huang and Xiao (2015), Kumar et al. (2020a), Li et al.…”

Section: Isolation Techniques Discussionmentioning

confidence: 99%

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

et al. 2021

View full text Add to dashboard Cite

With the advancement in the high data rates wireless transmission, the demand for high channel capacity planar antennas, especially for handheld devices, has shown a significant market. Multiple-Input-Multiple-Output (MIMO) antennas can fulfill the top requirement. MIMO antenna helps in increasing data throughput and link coverage without sacrificing additional bandwidth or increased transmit power (Kumar et al., 2018a, 2018b). The MIMO antenna's other advantages are: high data throughput and link range without additional spectrum requirement, increased transmit power, spatial diversity and pattern diversity, and less signal dropout (Kumar et al., 2019a). In MIMO, multiple antennas radiate simultaneously and act as a transmitter or receiver depending upon its purpose. Multiple antennas placed on a single substrate sharing at least one standard radiating frequency will be considered an MIMO antenna. The MIMO antenna should have a common ground, easing the integration with monolithic integrated circuits (ICs) (Kumar et al., 2020a). However, sometimes the MIMO antenna does not have a common ground plane, but such cases should be avoided for better integration purposes and standard voltage levels. MIMO antenna should be more compact to have a reduced form factor. The MIMO antenna's compactness is another primary concern when multiple antennas are placed on a single substrate. If the antenna element spacing is less than the λ 0 /2, i.e., half of the free-space wavelength, then the antenna suffers from the surface wave and the space wave coupling effect between the antenna elements (Dama et al., 2011). For that reason, as the compactness increases, the chances of MC effect increase, resulting in degradation in the MIMO antenna performance due to power losses in a rich scattering environment. Therefore, an effective isolation technique is a must in the design of a compact MIMO antenna. Besides this, pattern and spatial diversity

show abstract

Section: Isolation Techniques Discussionmentioning

confidence: 99%

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

et al. 2021

View full text Add to dashboard Cite

show abstract

“…F‐shaped stub is used for isolation enhancement in UWB–MIMO antenna as presented in Iqbal et al 9 Park et al developed a compact circular‐shaped MIMO antenna for UWB application with operating bandwidth from 3 to 9 GHz 10 . A two‐port fractal antenna is designed for UWB region by Bhattacharya et al in their work, 11 and to enhance the isolation, a strip loaded T‐shaped stub is used. Mchbal et al proposed the owl‐shaped MIMO antenna, which uses simple vertical strip for isolation enhancement and to achieve operating bandwidth from 3.1 to 11.15 GHz 12 .…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of a novel compact spanner‐shaped ultra‐wideband antenna for MIMO systems

Addepalli

Anitha²

2021

Int J Communication

View full text Add to dashboard Cite

Summary In this communication, a novel compact spanner shaped ultra‐wideband (UWB) antenna is designed for multiple input multiple output (MIMO) system applications. The proposed structure of size 24 × 32 mm2 (0.24λ0 × 0.32λ0, λ0 is calculated at lower band frequency) is designed and fabricated on widely available FR4 dielectric material with a dielectric constant of 4.4 and loss tangent of 0.02. The proposed structure comprises two spanner shaped antennas, a defected T‐shaped stub and a pair of small vertical strips. The defected T‐shaped stub and vertical strips are used for getting a complete UWB bandwidth and good isolation between two elements. It is performing from 3.0 to 11.0 GHz with isolation more than 20 dB in most of the operating region. The parametric studies have been done for the required parameters and figured out the surface current distribution at different resonant frequencies within the working region. The MIMO antenna diversity performance is confirmed with low values of envelope correlation coefficient (ECC < 0.005), channel capacity losses (CCL < 0.04 bits/s/Hz), acceptable mean effective gain (MEG ≤ −3 dB, MEG ratio = 0 dB), and total active reflection coefficient (TARC ≤ −10 dB) values. The peak gain values are varying from 1.5 to 6.0 dBi, and the radiation efficiency values are above 83% for the entire operating region. The simulated and measured values are well matched.

show abstract

“…In [9], a novel method of estimating the average channel capacity per user of a spread spectrum MIMO multiple-user system is evaluated. The eminence of proposed UWB MIMO antenna with reported literature [10][11][12][13][14] is given in Table 1. In [10], a CPW-fed UWB MIMO antenna of 40 × 40 mm 2 dimension is proposed with WLAN and X-band notch peculiarities having 111% fractional bandwidth, mutual coupling of < −15 dB, ECC of < 0.5, and a peak gain of 5.3 dBi.…”

Section: Introductionmentioning

confidence: 99%

“…The antenna covers an impedance bandwidth of 3.1-10.6 GHz with the isolation of < −15 dB, ECC of < 0.3, peak gain of 5.1, and radiation efficiency ranging from 63 to 90%. An isolation enhanced, low profile, printed MIMO-UWB antenna with WiMAX and WLAN band notch characteristics is reported in [13]. The Abbreviation: ECC -Envelope correlation coefficient, NR -Not Reported.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual Band Notched Mimo Uwb Antenna

Devana¹,

Rao²

2020

PIER Letters

View full text Add to dashboard Cite

A novel, miniature multiple input multiple output (MIMO) ultra wide band (UWB) antenna with dual notched characteristics is proposed. The antenna incorporates a tapered microstrip feed line with two radiating patch structures procured by the incorporation of two ellipses with a circle and a reduced ground structure. The proposed antenna is printed on an FR-4 substrate having a concise size of 40 × 22 mm 2 to cover −10 dB bandwidth of 3.18-11.26 GHz with fractional bandwidth of 112%. The two notched bands 3.31-3.99 GHz for WiMAX and 4.97-5.93 GHz for WLAN accomplished by two T-shaped parasitic structures are etched above ground plane and inverted U-shaped slots etched on radiating patch, respectively. The isolation of < −15 dB is realized by inserting a T-shaped stub in between two patch elements. The measured MIMO diversity characteristics are the evidence of that the proposed antenna is appropriate for portable wireless applications.

show abstract

An Isolation Enhanced, Printed, Low-Profile UWB-MIMO Antenna with Unique Dual Band-Notching Features for WLAN and WiMAX

Cited by 22 publications

References 20 publications

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

A Review on Different Techniques of Mutual Coupling Reduction Between Elements of Any MIMO Antenna. Part 1: DGSs and Parasitic Structures

Design and analysis of a novel compact spanner‐shaped ultra‐wideband antenna for MIMO systems

A Novel Dual Band Notched Mimo Uwb Antenna

Contact Info

Product

Resources

About