Isolation and frequency reconfigurable compact MIMO antenna for wireless local area network applications

Thummaluru, Sreenath Reddy; Kumar, Rajkishor; Chaudhary, Raghvendra Kumar

doi:10.1049/iet-map.2018.5895

Cited by 42 publications

(30 citation statements)

References 32 publications

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“…Moreover, the same decoupling circuit performs well in both the bands of two states, which makes it further compact. The proposed design is 98.6%, 70.2%, 37.3%, 82.9%, 77%, 92%, and 82% smaller than the ones reported in References , respectively. These all characteristics of the proposed MIMO antenna makes it suitable for adaptive small form factor devices.…”

Section: Performance Validation Of the Proposed Frequency Reconfiguracontrasting

confidence: 58%

Compact planar frequency reconfigurable multiple‐input‐multiple‐output antenna with pattern and polarization diversity characteristics for WiFi and WiMAX standards

Sipal

Abegaonkar

Koul

2020

Int J RF Microw Comput Aided Eng

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A compact planar frequency reconfigurable dual‐band multiple‐input‐multiple‐output (MIMO) antenna with high isolation and pattern/polarization diversity characteristics is presented in this article for WiFi and WiMAX standards. The MIMO configuration incorporates two symmetrically placed identical antenna elements and covers overall size of 24 mm × 24 mm × 0.762 mm. Reconfiguration of each antenna element is achieved by using a PIN diode which allows antennas to switch from state‐1 (2.3‐2.4 GHz and 4.6‐5.5 GHz) to state‐2 (3.3‐3.5 GHz and 4.6‐5.5 GHz). In state‐1, the configuration offers isolation ≥18 dB and 20 dB in lower band (LB) and upper band (UB) respectively; whereas, in state‐2, isolation ≥21 dB and 20 dB in LB and UB respectively is achieved. The same decoupling circuit provides high isolation in dual‐band of two states, which makes overall size of the proposed design further compact. The antennas are characterized in terms of envelope correlation coefficient, radiation pattern, gain, and efficiency. From measured and simulated results, it is verified that the proposed frequency reconfigurable dual‐band multi‐standard MIMO antenna design shows desirable performance in both operating bands of each state and compact size of the design makes it suitable for small form factor devices used in future wireless communication systems.

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Section: Performance Validation Of the Proposed Frequency Reconfiguracontrasting

confidence: 58%

Compact planar frequency reconfigurable multiple‐input‐multiple‐output antenna with pattern and polarization diversity characteristics for WiFi and WiMAX standards

Sipal

Abegaonkar

Koul

2020

Int J RF Microw Comput Aided Eng

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“…However, compared with other RF switches, it requires a high-control voltage and has a slow switching speed and a limited life cycle. Extensive studies on various kinds of reconfigurable antennas with electronic switching components are introduced in [39][40][41][42][43].…”

Section: Memsmentioning

confidence: 99%

Reconfigurable Antennas: Switching Techniques—A Survey

et al. 2020

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Due to the fast development of wireless communication technology, reconfigurable antennas with multimode and cognitive radio operation in modern wireless applications with a high-data rate have drawn very close attention from researchers. Reconfigurable antennas can provide various functions in operating frequency, beam pattern, polarization, etc. The dynamic tuning can be achieved by manipulating a certain switching mechanism through controlling electronic, mechanical, physical or optical switches. Among them, electronic switches are the most popular in constituting reconfigurable antennas due to their efficiency, reliability and ease of integrating with microwave circuitry. In this paper, we review different implementation techniques for reconfigurable antennas. Different types of effective implementation techniques have been investigated to be used in various wireless communication systems such as satellite, multiple-input multiple-output (MIMO), mobile terminals and cognitive radio communications. Characteristics and fundamental properties of the reconfigurable antennas are investigated. writing-review and editing, N.O.P. and R.A.A.-A.; investigation, N.O.P., H.J.B., Y.I.A.A.-Y. and A.M.A.; resources, N.O.P. and R.A.A.-A.; for other cases, all authors have participated. All authors have read and agreed to the published version of the manuscript.

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“…Multiple-Input Multiple-Output (MIMO) aids in enhancement of data throughput due to multipath effects [6]. Integration of the antenna module corresponding to a MIMO design in handheld portable devices is much more challenging than single element integration with motherboard.…”

Section: Introductionmentioning

confidence: 99%

“…Integration of the antenna module corresponding to a MIMO design in handheld portable devices is much more challenging than single element integration with motherboard. It must also be observed that patterns must be significantly distinct with low isolation which becomes challenging for design at low frequency with spatially and electrically closed environment [7].…”

Section: Introductionmentioning

confidence: 99%

Electrically Small Acs-Fed Flipped Mimo Antenna for Usb Portable Applications

Magray¹,

Karthikeya²,

Muzaffar³

et al. 2019

PIER C

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An electrically small Asymmetric Co-planar Strip (ACS)-fed MIMO antenna for USB wireless applications is proposed. MIMO antenna consists of two electrically small antennas inserted inside a 3D-printed USB prototype. Electrically small ACS-fed antenna consists of an F-shaped monopole radiator with a U-shaped slot inserted into it. The proposed antenna is compact with dimensions 11×20×0.508 mm 3 . The proposed MIMO antenna has dual bands which caters to WiMAX-3.5/5.5 GHz, WLAN-5.8 GHz, and C-band-6.3 GHz. The proposed architecture attains reasonable gain for the available aperture. Also, ACS-fed antenna achieves fractional bandwidth of 22% and 20% in the lower and upper bands respectively complying with the theoretical bandwidth as defined by Chu's limit. Isolation between the radiators is greater than 15 dB in both the operating bands. Radiation patterns have high integrity, and actual USB deployment is presented. Simulation and measurement results are presented.

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Isolation and frequency reconfigurable compact MIMO antenna for wireless local area network applications

Cited by 42 publications

References 32 publications

Compact planar frequency reconfigurable multiple‐input‐multiple‐output antenna with pattern and polarization diversity characteristics for WiFi and WiMAX standards

Compact planar frequency reconfigurable multiple‐input‐multiple‐output antenna with pattern and polarization diversity characteristics for WiFi and WiMAX standards

Reconfigurable Antennas: Switching Techniques—A Survey

Electrically Small Acs-Fed Flipped Mimo Antenna for Usb Portable Applications

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