Compact Wideband CPW-Fed Meandered-Slot Antenna With Slotted Y-Shaped Central Element for Wi-Fi, WiMAX, and 5G Applications

Fang, Xiaochuan; Wen, Guangjun; Inserra, Daniele; Huang, Yongjun; Li, Jian

doi:10.1109/tap.2018.2869254

Cited by 45 publications

(39 citation statements)

References 22 publications

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“…In addition to miniaturization and circular polarization, high forward gain in certain environment and unidirectional radiation patterns are required in RFID reader antennas. A conducting plane can be placed as a reflector at a quarter wavelength distance from the radiator to achieve good unidirectional radiation for avoiding destructive interference between reflected and radiated waves [14]. However, the required quarter-wavelength profile height and large reflector will result in a large antenna dimension.…”

Section: Circularly Polarized Reader Antennas Are Usually Requiredmentioning

confidence: 99%

Compact Circularly Polarized Microstrip Ring Antenna Using Capacitive Coupling Structure for RFID Readers

Yuan

Chen

et al. 2020

IEEE Access

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This paper presents a compact circularly polarized microstrip antenna for radio frequency identification (RFID) readers. The dimensions of the proposed antenna are reduced by etching a cross slot in the radiation patch and loading four grounded coupling patches on the four corners of the radiation patch. An inverted Z-shaped coupling feedline is used to realize circularly polarized operation. The measured −10 dB |S 11 | bandwidth, 3-dB axial ratio bandwidth and maximum gain are 872−1095 MHz, 888−933 MHz, and 5.52 dBi, respectively, at 922 MHz frequency. The overall dimension of the proposed antenna is 0.36 λ g × 0.36 λ g × 0.05 λ g (λ g is the guide wavelength at the center frequency of 915 MHz). The proposed antenna has small size with good overall performance and is suitable for compact RFID devices. INDEX TERMS Circular polarization (CP), coupling patch, coupling feedline, microstrip antenna, radio frequency identification.

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Section: Circularly Polarized Reader Antennas Are Usually Requiredmentioning

confidence: 99%

Compact Circularly Polarized Microstrip Ring Antenna Using Capacitive Coupling Structure for RFID Readers

Yuan

Chen

et al. 2020

IEEE Access

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“…In order to investigate the feasibility for different utilizations, many antennas operating at Wi-Fi and 5G frequencies are simulated and manufactured in [18][19][20][21]. However, printed dipole antenna is preferred for small-sized antennas due to its many advantages (easy to fabricate, simple, good gain, low profile, etc.)…”

Section: Design and Analysis Of Antennas For Eyewear Devices Modelmentioning

confidence: 99%

SAR analysis of tri-band antennas for a 5G eyewear device

Geyikoğlu

Polat

Kaburcuk

et al. 2020

Int. J. Microw. Wireless Technol.

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The goal of this study is to analyze the specific absorption rate (SAR) distribution of the projected 5G frequencies below 6 GHz and at Wi-Fi frequency (2.45 GHz) on a human head, for eyewear device applications. Two separate tri-band printed dipole antennas for this purpose are designed and fabricated at operating frequencies of 2.45/3.8/6 GHz for prototype-1 and at operating frequencies of 2.45/3.6/4.56 GHz for prototype-2. In order to obtain the desired frequencies: first, the prototypes of the proposed antennas are fine-tuned via Computer Simulation Technology Microwave Studio (CST) and then fabricated on the FR4 layer. The reflection coefficient (S11) is tested and the simulation results are confirmed. In order to analyze the effect of wearing a pair of glasses' frame including a tri-band 5G antenna, a frame is designed and produced via 3D printer with polylactic acid material which has high dielectric constant (ɛ r = 8.1). The SAR results of the proposed antennas have been examined for the cases where the antenna is embedded in the frame and is used alone. Both cases were analyzed by using the homogeneous specific anthropomorphic mannequin and the heterogeneous visible human head phantoms and the results have been evaluated in terms of SAR10 g values.

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“…The compact wideband slot antenna is presented in [21]. This antenna has a slotted Y shape meander structure.…”

Section: A Antennas With Meander Structuresmentioning

confidence: 99%

Meander Conductor Shape Influence on the Electrodynamic Parameters of the Meander Structures

Belova-Plonienė

Katkevičius

2020

Electrical, Control and Communication Engineering

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Meander structures allow reducing the size of the microwave devices while keeping the same operational characteristics. The shape of meander makes a considerable impact on the operation of microwave devices. Therefore, the structure of meander is widely investigated nowadays. The review of different shapes of a meander conductor is presented in this article. Two models with different shape of connecting conductors are designed and discussed in detail. The influence of variation of the length and width of connecting conductors on the electrical parameters of the meander is revealed using the traditional model of meander. Later, the comparison of the traditional model and the model with rectangle-shape peripheral parts of a meander conductor is presented. The increase in the width of connecting conductors from 0.2 mm to 1.0 mm has narrowed the bandwidth by 346 MHz until 2.388 GHz. The increase in the length of connecting conductors to 2.3 mm has allowed moving the stop-band to higher frequencies. The usage of the rectangle-shape connecting conductors slightly reduces the pass-band but allows achieving more stable input impedance.

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Compact Wideband CPW-Fed Meandered-Slot Antenna With Slotted Y-Shaped Central Element for Wi-Fi, WiMAX, and 5G Applications

Cited by 45 publications

References 22 publications

Compact Circularly Polarized Microstrip Ring Antenna Using Capacitive Coupling Structure for RFID Readers

Compact Circularly Polarized Microstrip Ring Antenna Using Capacitive Coupling Structure for RFID Readers

SAR analysis of tri-band antennas for a 5G eyewear device

Meander Conductor Shape Influence on the Electrodynamic Parameters of the Meander Structures

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