Design of a patch antenna with square ring-shaped-coupled ground for on-/off body communication

Gupta, Anupma; Kansal, Ankush; Chawla, Paras

doi:10.1080/00207217.2019.1625970

Cited by 23 publications

(11 citation statements)

References 19 publications

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“…71 While for muscles and Skin, the insert dimensions are more minor but permittivity is high, so their resonance loss becomes lesser. 72 For bones, dielectric permittivity is found to be smaller than that of muscles and Skin. Hence, more miniaturization of the implantable antennas is required.…”

Section: For Monitoring Different Pathological Changes Relating Bonesmentioning

confidence: 99%

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Systemic Overview of Microstrip Patch Antenna’s for Different Biomedical Applications

et al. 2020

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Section: For Monitoring Different Pathological Changes Relating Bonesmentioning

confidence: 99%

“…71 While for muscles and skin, the insert dimensions are more minor but permittivity is high, so their resonance loss becomes lesser. 72 …”

Section: Comparison Of the Design Considerations Of Mspas For Bone Muscles And Skinmentioning

confidence: 99%

Systemic Overview of Microstrip Patch Antenna’s for Different Biomedical Applications

et al. 2020

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“…Ultra-wideband (UWB) technology provides a unique solution in the field of high-speed short-range indoor communication. [1][2][3][4][5][6] However, it is still a major challenge to avoid interference with already existing bands in the UWB spectrum, such as , 5.8 GHz), X-band downlink, and uplink for satellite communication and 7.9 GHz to 8.4 GHz), C-band uplink and downlink for satellite communication (5.925-6.425 GHz and 3.7-4.2 GHz), and ITU-R (7.725-8.50 GHz). 3,4 Thus, UWB antennas should possess band notch characteristics.…”

Section: Introductionmentioning

confidence: 99%

“…3,4 Thus, UWB antennas should possess band notch characteristics. [5][6][7][8][9] Multiple design techniques have been provided in the literature for achieving band-notch characteristics in the UWB antennas, that is, slot and parasiticelementloading, 10,11 using fractals, 12 embedding split-ring resonators (SRRs) and electromagnetic bandgap (EBG) structures. 1,3,[13][14][15][16][17] Further, Varactor diodes, PIN diodes, variable capacitors, optically controlled switch, magnetodielectric materials and microelectro-mechanical systems (MEMS) have been also used to achieve reconfigurable operation in UWB antennas with band-notch characteristics.…”

mentioning

confidence: 99%

A planar CPW fed UWB antenna with dual rectangular notch band characteristics incorporating U‐slot, SRRs , and EBGs

Kumar

Singh

Kumar

2021

Int J RF Microw Comput Aided Eng

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In this article, a planar ultra-wideband (UWB) antenna with dual rectangular notchband characteristics (ie, GHz) is presented.The two-notch bands are chosen based on various wireless applications operating in C-band and X-band. The size of the antenna is very compact (25 × 25 × 1.6 mm 3 ) and is designed on a low-cost FR4 substrate. Co-planar waveguide (CPW) feed and beveling techniques are utilized for achieving the UWB operation. In order to yield the first rectangular notch, a U-slot and a pair of split-ring resonators are embedded into the radiating patch and the backside of the design, respectively. The coupling between these two structures is adjusted so as to achieve a rectangular band-notch operation. The second rectangular notch has been achieved by introducing the two mushroom type electromagnetic band-gap structures on the opposite side of the CPW feed. The parametric analysis for controlling band notches, time-domain analysis, and filter synthesis is also presented. Finally, simulated as well as measured results of S 11 , gain, radiation pattern, group delay, and total efficiency are demonstrated to show the suitability of this design for UWB systems. K E Y W O R D Sco-planar waveguide (CPW), electromagnetic bandgap (EBG), fidelity factor, filter synthesis, rectangular notch, split ring resonator (SRR) | INTRODUCTIONUltra-wideband (UWB) technology provides a unique solution in the field of high-speed short-range indoor communication. [1][2][3][4][5][6] However, it is still a major challenge to avoid interference with already existing bands in the UWB spectrum, such as , 5.8 GHz), X-band downlink, and uplink for satellite communication and 7.9 GHz to 8.4 GHz), C-band uplink and downlink for satellite communication (5.925-6.425 GHz and 3.7-4.2 GHz), and ITU-R (7.725-8.50 GHz). 3,4 Thus, UWB antennas should possess band notch characteristics. [5][6][7][8][9] Multiple design techniques have been provided in the literature for achieving band-notch characteristics in the UWB antennas, that is, slot and parasiticelementloading, 10,11 using fractals, 12 embedding split-ring resonators (SRRs) and electromagnetic bandgap (EBG) structures. 1,3,[13][14][15][16][17] Further, Varactor diodes, PIN diodes, variable capacitors, optically controlled switch, magnetodielectric materials and microelectro-mechanical systems (MEMS) have been also used to achieve reconfigurable operation in UWB antennas with band-notch characteristics. 3,[18][19][20][21][22][23] The aforementioned designs have a common drawback that has not been assessed meticulously, that is, all these designs have a spiculate curve for notch band

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“…Resonance frequency of antenna may detune when operated in heterogeneous tissue environment. Thus, larger bandwidth is important feature of implantable antenna 7 . PIFA with Π‐shaped radiator, 8 PIFA with open end slot, 9 slotted radiator loaded with metamaterial 10 and adding of double split ring resonators at the ground plane 11 are recently used methods to achieve broader bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of a CPW‐fed circularly polarized implantable antenna for 2.45 GHz ISM band

Gupta

Thakur

2020

Micro & Optical Tech Letters

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A CPW-fed, circularly polarized (CP)antenna operating at 2.45 GHz ISM band is investigated for in-body biotelemetry. Antenna has compact volume of 98mm 3 (14 mm × 14 mm × 0.5 mm) and printed on RO 3010 substrate. By using inverted z-shaped radiator with square ring-shaped ground, wide impedance bandwidth of 450 MHz (2.25-2.7 GHz).In addition, it also contributes to excite two orthogonal modes (TM01 and TM10) for CP generation and 3-dB axial ratio bandwidth of 170 MHz (2.39-2.56 GHz)is achieved. Results are simulated in muscle tissue, three-layer rectangular and cylindrical phantom tissues and measured in pork tissue. Proposed structure demonstrates robust performance in heterogeneous bio-environment. High gain of −15.96 dB confirms good radiation characteristics, low SAR value of 0.494 W/Kg and radiation efficiency of 2.83% make antenna suitable for low power in-body bio-telemetry.

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Design of a patch antenna with square ring-shaped-coupled ground for on-/off body communication

Cited by 23 publications

References 19 publications

Systemic Overview of Microstrip Patch Antenna’s for Different Biomedical Applications

Systemic Overview of Microstrip Patch Antenna’s for Different Biomedical Applications

A planar CPW fed UWB antenna with dual rectangular notch band characteristics incorporating U‐slot, SRRs , and EBGs

Design and performance analysis of a CPW‐fed circularly polarized implantable antenna for 2.45 GHz ISM band

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