Wideband Differentially Fed Patch Antennas Under Dual High-Order Modes for Stable High Gain

Xiao, Zhang; Hong, Kai‐Dong; Li, Zhu; Bi, Xiao‐Kun; Yuan, Tao

doi:10.1109/tap.2020.3006394

Cited by 36 publications

(24 citation statements)

References 28 publications

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“…But it employs differential feeding and shows conical radiation patterns due to the presence of higher order modes. A larger gain reported in [7,8] is due to the higher patch size whereas the MSA reported in [9] does not offer wider BW around the fundamental patch mode. The sectoral MSA designs reported in [10,11] require additional shorting post, slot, or stub, and yet offer smaller BW.…”

Section: Regular Shape Msas Using H-shape Ground Planementioning

confidence: 85%

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Wideband Designs of Regular Shape Microstrip Antennas Using Modified Ground Plane

Chavali¹,

Deshmukh²

2021

PIER C

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Wideband designs of proximity fed regular shape microstrip antennas using bow-tie and H-shape ground plane profiles are proposed in the 1000 MHz frequency range. The modified ground plane alters the quality factor of the patch cavity which enhances the impedance bandwidth. In terms of the results obtained for the bandwidth and gain together, circular and square patches backed by bow-tie shape ground plane, followed by circular patch backed by H-shape ground plane yield optimum results. For substrate thickness of 0.097λ g , against the conventional ground plane, bow-tie shape gives 12% and 24% bandwidth increment for the circular and square patches, respectively, and H-shape ground plane yields bandwidth increment by 17% in the circular patch. All these wideband designs offer a peak gain around 6 dBi with a broadside radiation pattern. Further, a modified ground plane profile helps in optimizing the proximity fed antennas on lower substrate thicknesses. Amongst all the configurations, for ∼ 0.03λ g reduction in the substrate thickness, square microstrip antenna using bow-tie shape ground plane yields 19% increase in the impedance bandwidth against the equivalent thicker substrate design with a peak broadside gain of above 6 dBi. Thus, the proposed modified ground plane antennas yield bandwidth improvement but for a smaller substrate thickness.

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Section: Regular Shape Msas Using H-shape Ground Planementioning

confidence: 85%

“…A simpler way of achieving this is the use of parasitic elements [1,[3][4][5]. With a single patch, MSA BW is increased by using slots or stubs [6][7][8][9][10][11]. However, these techniques are complex in design, and they require a thicker substrate to achieve optimum BW.…”

Section: Introductionmentioning

confidence: 99%

Wideband Designs of Regular Shape Microstrip Antennas Using Modified Ground Plane

Chavali¹,

Deshmukh²

2021

PIER C

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“…To ensure the stability of a reception link from plenty of the sensor nodes, high-performance antennas with high gains, orthogonal polarizations, and omnidirectional coverage are required in sink nodes. First, high-gain antennas allow a longer wireless transmission distance between the sink node and sensor nodes [ 5 , 6 , 7 ]. Second, dual-polarized antennas have the capabilities of avoiding the polarization mismatch and reducing the system volume compared with a pair of spatially-separated single-polarized antennas [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

High-Gain Omnidirectional Dual-Polarized Antenna for Sink Nodes in Wireless Sensor Networks

Zhang

2022

Sensors

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In wireless sensor networks (WSN), a sink node receives signals from a large number of sensor nodes. Hence, the sink nodes are required to integrate compact antennas with high performances, such as high gain, dual polarizations, and omnidirectional radiation. In this paper, a high-gain omnidirectional dual-polarized (HGODP) antenna with a slot-cavity structure is proposed for WSN. The proposed antenna integrates dual omnidirectional antennas with orthogonal polarizations, i.e., a thin open-ended cavity for horizontal polarization and four folded slots for vertical polarization. Due to the orthogonal operating modes of the dual polarizations, the antenna configuration is constructed within a compact volume, but with an independent design. A prototype of the proposed antenna is fabricated and measured within a ruler-like profile. The experimental results show that the realized gains are higher than 6.5 dBi and are achieved for both dual polarizations in 2.37~2.54 GHz. With the merits of high gain, high isolation, and omnidirectional radiation, the proposed compact antenna exhibits promising usage for sink nodes in WSN.

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“…Some recent works have tried to enhanced antenna's gain with high-order modes [20]- [26]. It is found in [22] [23] so as to enhance the bandwidth and gain of a patch antenna operating in dual high-order modes. Apart from above-mentioned advantage of high-order mode antennas, they also are good candidates for beam-reconfigurable design due to abundant mode resources.…”

Section: Introductionmentioning

confidence: 99%

A High-Gain and Pattern-Reconfigurable Patch Antenna Under Operation of TM₂₀ and TM₂₁ Modes

Hong

Zhang

et al. 2021

IEEE Open J. Antennas Propag.

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In this article, a high-gain square patch antenna with reconfigurable broadside and bidirectional beams under operation of TM20 and TM21 modes is proposed. Initially, two open slots are loaded to the edges in two opposite sides of the radiating patch so as to reshape the current distribution of TM21 mode, by which its four-beam radiation pattern is transformed into the desired broadside beam. With this arrangement, the resonant frequency of TM21 mode can additionally get reduced towards that of TM20 mode. By utilizing a simple feeding network with four p-i-n diode switchers, TM20 and TM21 modes can be further excited with common-mode and differential feeding schemes, respectively, thus bringing out switchable broadside and bidirectional patterns. The simulated and measured results are found in good agreement, both demonstrating that the antenna achieves an overlapping bandwidth of 7.3% in a range from 2.35 to 2.54 GHz, and the measured peak gains as high as 10.4 and 9.6 dBi for the broadside and bidirectional states, respectively.

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Wideband Differentially Fed Patch Antennas Under Dual High-Order Modes for Stable High Gain

Cited by 36 publications

References 28 publications

Wideband Designs of Regular Shape Microstrip Antennas Using Modified Ground Plane

Wideband Designs of Regular Shape Microstrip Antennas Using Modified Ground Plane

High-Gain Omnidirectional Dual-Polarized Antenna for Sink Nodes in Wireless Sensor Networks

A High-Gain and Pattern-Reconfigurable Patch Antenna Under Operation of TM₂₀ and TM₂₁ Modes

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