3-D Eight-Port Ultrawideband Antenna Array for Diversity Applications

Palaniswamy, Sandeep Kumar; Selvam, Yogeshwari Panneer; Alsath, M. Gulam Nabi; Kanagasabai, Malathi; Kingsly, Saffrine; Subbaraj, Sangeetha

doi:10.1109/lawp.2016.2590144

Cited by 48 publications

(45 citation statements)

References 20 publications

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“…An eight‐port MIMO configuration with cylindrical dielectric resonator antennas (cDRAs) was reported for wireless access point systems . In Reference , an eight‐element UWB MIMO antenna was proposed with good diversity performance. However, among the existing MIMO antenna designs with/without notch‐band characteristics, it is very difficult to locate numerous antenna elements, with low mutual coupling level, compact size, and diversity performance.…”

Section: Introductionmentioning

confidence: 99%

“…A number of MIMO antenna designs with two, four, and eight radiating elements have been reported in the last few years. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] However, there was always a trade-off of antenna dimensions, isolation, resonating range, radiation characteristics, and complexity in all of these presented designs and techniques.…”

Section: Introductionmentioning

confidence: 99%

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Compact eight‐port MIMO/diversity antenna with band rejection characteristics

Srivastava

Kumar

Kanaujia

et al. 2020

Int J RF Microw Comput Aided Eng

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A new compact three‐dimensional multiple‐input‐multiple‐output (MIMO) antenna comprised of eight antenna elements is presented. The unit cell of the proposed MIMO/diversity antenna consists of three elliptical rings connected together in the region close to the feed line and a rectangular‐shaped modified ground plane. To achieve polarization diversity with the proposed eight‐port MIMO configuration, four antenna elements are horizontally arranged and the remaining four are vertically oriented. The proposed antenna has an impedance bandwidth (S11 < −10 dB) of 25.68 GHz (3.1‐28.78 GHz) with a wireless local area network notch‐band at 5.8 GHz (5.2‐6.5 GHz). In addition to polarization diversity, the proposed antenna provides a reliable link with wireless devices. The prototype antenna design is fabricated and measured for diversity performance. Also, the proposed MIMO antenna provides good performance metrics such as apparent diversity gain, channel capacity loss, envelope correlation coefficient, isolation, mean effective gain, multiplexing efficiency, and total active reflection coefficient.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compact eight‐port MIMO/diversity antenna with band rejection characteristics

Srivastava

Kumar

Kanaujia

et al. 2020

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…This phenomenon becomes more evident in portable terminals, where limited space is provided, thus deteriorating the overall performance of the MIMO systems. Adding more radiating elements within a MIMO antenna improves the link reliability of the system . Over the past few years, considerable research efforts have been made to deal with the problems of mutual coupling.…”

Section: Introductionmentioning

confidence: 99%

Multiple‐input‐multiple‐output/diversity antenna with dual band‐notched characteristics for ultra‐wideband applications

Kumar

Lee

Kim

et al. 2019

Micro & Optical Tech Letters

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Design and implementation of a four‐port ultra‐wideband (UWB) multiple‐input‐multiple‐output (MIMO)/diversity antenna with dual band‐notched characteristics are presented. The proposed diversity antenna is composed of four identical rhombic‐shaped monopole radiators arranged orthogonally to achieve better interelement isolation and polarization diversity. At each port, the MIMO antenna shows an impedance bandwidth (S11 ≤ –10 dB) of 10.5 GHz (2.8‐13.3 GHz) and an interelement isolation larger than 18 dB. Furthermore, in order to eliminate 3.5 GHz (Wi‐MAX) and 5.5 GHz (WLAN) bands from the UWB range, the antenna radiators are loaded with elliptical complementary split ring resonator structures. The MIMO performance metrics such as isolation, envelope correlation coefficient, and apparent diversity gain are calculated and presented. The MIMO/diversity antenna prototype is fabricated, and experimental results are verified with simulated results.

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“…Antenna geometries such as rectangle, triangle, circle, ellipse, polygon and fused polygon have been proposed for printed monopole antennas [3][4][5]. Planar monopole antenna is a substitute for conical and cylindrical structures, and was first reported by Meinke and Gundlach in 1968 [6].…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Wideband Monopole Antennas for Flexible/Wearable Wireless Device Applications

Reddy¹,

Kumar²,

Rao³

et al. 2017

PIER M

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Abstract-Compact wideband flexible monopole antennas are designed and analyzed for its performance for Body Centric Wireless Communications (BCWC). Two antennas with identical radiators on different substrates are designed and fabricated on polyamide and teslin paper substrates, deploying a modified rectangle-shaped radiator. With the aid of modifications in the radiating plane and defecting the ground plane, the polyamide based antenna is designed to operate between 1.8 and 13.3 GHz, and teslin paper based antenna is designed to operate between 1.45 and 13.4 GHz to cover the wireless communication technology frequencies and ultra-wideband range for various wireless applications. The reflection coefficient characteristics of the fabricated antennas on free space and on various sites of the body are measured and match reasonably well with the simulated reflection coefficient characteristics. The specific absorption rate (SAR) analysis is also carried out by placing the antennas on tissue layered model.

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3-D Eight-Port Ultrawideband Antenna Array for Diversity Applications

Cited by 48 publications

References 20 publications

Compact eight‐port MIMO/diversity antenna with band rejection characteristics

Compact eight‐port MIMO/diversity antenna with band rejection characteristics

Multiple‐input‐multiple‐output/diversity antenna with dual band‐notched characteristics for ultra‐wideband applications

Design and Analysis of Wideband Monopole Antennas for Flexible/Wearable Wireless Device Applications

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