Broadband multiple‐input–multiple‐output antenna using castor leaf‐shaped quasi‐self‐complementary elements

Patre, Situ Rani; Singh, S. P.

doi:10.1049/iet-map.2016.0058

Cited by 31 publications

(23 citation statements)

References 18 publications

(21 reference statements)

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“…In comparison with the antennas in refs. [19][20][21][22][23][24], the proposed MIMO configuration has considerable advantages in terms of the number of radiating patches, compact size, bandwidth ratio, and isolation. In addition, the proposed MIMO antenna is CPW-fed, which facilitates its easy integration into portable devices or MMICs.…”

Section: Results Discussionmentioning

confidence: 99%

“…The effective length of S 1 ≈ 0.29λ gi and that of S 2 and S 3 ≈ 0.52λ gi , which are calculated as

S_{1} = ((), L_{1} + L_{2} + L_{3} + W_{a}) \approx 0.29 λ_{g 1}

S_{2} = ((), 6 H_{1} - G_{1} + 2 W_{a}) \approx 0.52 λ_{g 2}

S_{3} = ((), 6 H_{2} - G_{2} + 2 W_{a}) \approx 0.52 λ_{g 3}

λ_{gi} = \frac{v}{f_{italicri}} ((), \frac{1}{\sqrt{ε_{r, eff}}}), i = 1, 2, 3

ε_{r, italiceff} = \frac{(ε_{r} + 1)}{2}

…”

Section: Antenna Designmentioning

confidence: 99%

“…For obtaining high isolation, the two radiators were arranged symmetrically, with their faces oriented opposite to each other. A two‐port castor leaf‐shaped QSC MIMO antenna with dual band‐notched behavior was reported . The Wi‐MAX and WLAN bands were rejected by using a slit and split ring slot on the radiating patches.…”

Section: Introductionmentioning

confidence: 99%

“…A two-port castor leaf-shaped QSC MIMO antenna with dual band-notched behavior was reported. 24 The Wi-MAX and WLAN bands were rejected by using a slit and split ring slot on the radiating patches. However, the SWB antenna designs reported in the literature focus mainly on single radiating element with single or dual-band rejection characteristics and the four- element SWB MIMO antenna with multiple band rejection features is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Low profile four‐port super‐wideband multiple‐input‐multiple‐output antenna with triple band rejection characteristics

Raheja

Kanaujia

Kumar³

2019

Int J RF Microw Comput Aided Eng

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A quad‐port planar multiple‐input‐multiple‐output (MIMO) antenna possessing super‐wideband (SWB) operational features and triple‐band rejection characteristics is designed. The proposed MIMO configuration consists of four modified‐elliptical‐self‐complementary‐antenna (MESCA) elements, which are excited by tapered co‐planar waveguide (TCPW) feed lines. A radiator‐matched complementary slot is present in the ground conductor patch of each MESCA element. The proposed MIMO antenna exhibits a bandwidth ratio of 36:1 (|S11| < −10 dB; 0.97‐35 GHz). Further, a step‐like slit‐resonator is etched in the radiator to eliminate interferences at 3.5 GHz. A hexagonal shaped complementary split ring resonator (CSRR) is also loaded on the MESCA radiator to remove interferences at 5.5 and 8.5 GHz. The MIMO antenna is fabricated on FR‐4 substrate of size 63 × 63 mm2 and experimental results are found in good agreement with the simulated results. The MIMO antenna exhibits inter‐element isolation >17 dB and envelope correlation coefficient (ECC) <0.01 at all the four ports.

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Section: Results Discussionmentioning

confidence: 99%

“…The effective length of S 1 ≈ 0.29λ gi and that of S 2 and S 3 ≈ 0.52λ gi , which are calculated as

S_{1} = ((), L_{1} + L_{2} + L_{3} + W_{a}) \approx 0.29 λ_{g 1}

S_{2} = ((), 6 H_{1} - G_{1} + 2 W_{a}) \approx 0.52 λ_{g 2}

S_{3} = ((), 6 H_{2} - G_{2} + 2 W_{a}) \approx 0.52 λ_{g 3}

λ_{gi} = \frac{v}{f_{italicri}} ((), \frac{1}{\sqrt{ε_{r, eff}}}), i = 1, 2, 3

ε_{r, italiceff} = \frac{(ε_{r} + 1)}{2}

…”

Section: Antenna Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low profile four‐port super‐wideband multiple‐input‐multiple‐output antenna with triple band rejection characteristics

Raheja

Kanaujia

Kumar³

2019

Int J RF Microw Comput Aided Eng

View full text Add to dashboard Cite

show abstract

“…In [17], a UWB MIMO antenna containing two QSC radiating patches located opposite to each other to realize high isolation was proposed. In [18], a dual-port MIMO antenna with a castor leaf-shaped structure and possessing WLAN and Wi-MAX band rejection characteristics was reported. In [19], the authors presented a UWB MIMO antenna with two QSC half-circular monopoles, where the notch band and isolation were obtained by introducing parasitic strips of Levy's and Hilbert fractal-shaped strips, respectively.…”

Section: Introductionmentioning

confidence: 99%

Design of Quad-Port MIMO/Diversity Antenna with Triple-Band Elimination Characteristics for Super-Wideband Applications

Kumar

Urooj

Alrowais

2020

Sensors

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A compact, low-profile, coplanar waveguide (CPW)-fed quad-port multiple-input–multiple-output (MIMO)/diversity antenna with triple band-notched (Wi-MAX, WLAN, and X-band) characteristics is proposed for super-wideband (SWB) applications. The proposed design contains four similar truncated–semi-elliptical–self-complementary (TSESC) radiating patches, which are excited through tapered CPW feed lines. A complementary slot matching the radiating patch is introduced in the ground plane of the truncated semi-elliptical antenna element to obtain SWB. The designed MIMO/diversity antenna displays a bandwidth ratio of 31:1 and impedance bandwidth (|S11| ≤ − 10 dB) of 1.3–40 GHz. In addition, a complementary split-ring resonator (CSRR) is implanted in the resonating patch to eliminate WLAN (5.5 GHz) and X-band (8.5 GHz) signals from SWB. Further, an L-shaped slit is used to remove Wi-MAX (3.5 GHz) band interferences. The MIMO antenna prototype is fabricated, and a good agreement is achieved between the simulated and experimental outcomes.

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Millimeter‐wave planar antennas for 5G‐based remote monitoring and treatment of COVID‐19 patients

Nahar

Rawat

2021

Trans Emerging Tel Tech

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Spreading of COVID‐19 intensely affected the social life, economics, and health care system globally. Remote treatment of COVID‐19 is required to prevent healthcare professionals from being infected and solve the shortage of health resources which is generated due to large number of COVID patients. Tele‐health services require low latency, high data rate connections between various sensors, and Internet of Things devices with reliable and uninterrupted networks, which can support massive number of devices. 5G‐based remote health care solutions are provided by various researchers to solve the aforementioned problems. Various technologies such as millimeter‐wave (mm‐wave), beamforming, and multiple‐input‐multiple‐output (MIMO) are used to fulfill the requirements. mm‐Wave spectrum provides wide available bandwidth, high speed, low latency, and compact antenna size but range of communication is limited due to high link losses and environmental attenuation. High‐gain, narrow beam‐steerable radiation properties of antenna are required to mitigate these losses. This article first presents the design of 16 elements mm‐Wave beam‐steerable planar array for 5G‐based COVID‐19 tracking and health care management. The proposed antenna provides 1.83 GHz of bandwidth with gain of 19.3 dB and side‐lobe levels of less than −24 dB at 28.67 GHz. Narrow main beam having 0.9° beamwidth can be steered from −50° to +45° with less than 5 dB reduction in gain. MIMO configurations of the proposed antenna are also discussed. MIMO performance parameters are under acceptable limit. The proposed antenna is potential cost efficient solution for 5G‐based COVID‐19 tracking and treatment applications.

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Broadband multiple‐input–multiple‐output antenna using castor leaf‐shaped quasi‐self‐complementary elements

Cited by 31 publications

References 18 publications

Low profile four‐port super‐wideband multiple‐input‐multiple‐output antenna with triple band rejection characteristics

Low profile four‐port super‐wideband multiple‐input‐multiple‐output antenna with triple band rejection characteristics

Design of Quad-Port MIMO/Diversity Antenna with Triple-Band Elimination Characteristics for Super-Wideband Applications

Millimeter‐wave planar antennas for 5G‐based remote monitoring and treatment of COVID‐19 patients

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