Metamaterial Antenna Designs for a 5.8-GHz Doppler Radar

Yılmaz, Hasan Önder; Yaman, Fatih

doi:10.1109/tim.2019.2914131

Cited by 31 publications

(11 citation statements)

References 31 publications

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“…The antenna's radiation is improved with a truncated corner MPA loaded with metamaterials. Antenna loaded with metamaterials is applicable in Doppler radar with improved antenna parameters [15]. Split-ring resonators and the complementary split-ring resonator are used for making the metamaterial component.…”

Section: Introductionmentioning

confidence: 99%

Low-cost, compact, and reconfigurable antennas using complementary split-ring resonator metasurface for next-generation communication systems

Patel

Lavadiya

Parmar

et al. 2022

Int. J. Microw. Wireless Technol.

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An innovative and simple method for attaining broadband frequency reconfigurable antenna structure is presented using low-cost materials and a compact design. The frequency reconfigurability is attained by the “OFF” and “ON” mechanisms of three PIN diodes. Many performance observations are carried out such as reflectance coefficient, bandwidth (BW), resonance frequency, electric field, feed position variation, and gain among different configurations. The suitability of the presented work for the different applications lies in the X frequency band. The resonating frequency for all switch OFF modes is achieved at 13.2 GHz and one switch ON mode at 10.7 GHz. The proposed design yields the frequency tunability behavior over the broadband of 2.5 GHz. The design yields the directivity of 5.58 dB, the minimum reflectance coefficient of −17.27 dB, and a total gain of 3.87 dB. This design offers an electric field of 46 558 v/m, a BW of 340 MHz, and a normalized directivity of 87° using low-cost substrates. The results of the presented design were also fabricated and related to simulated results. Performance observation of the proposed work with previously published research work is also included. The presented design provides the solution of the low-cost, compact, reconfigurable antennas, which can be used for next-generation communication systems.

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Section: Introductionmentioning

confidence: 99%

Low-cost, compact, and reconfigurable antennas using complementary split-ring resonator metasurface for next-generation communication systems

Patel

Lavadiya

Parmar

et al. 2022

Int. J. Microw. Wireless Technol.

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“…As a composite with an artificial structure, metamaterials have unique properties that many natural materials do not have, such as a negative dielectric constant [ 1 ], negative permeability [ 2 ], negative refractive index [ 3 ], and epsilon-near-zero [ 4 ]; therefore, metamaterials research has become a popular area in recent years. Many fields are applying metamaterials to achieve specific characteristics, such as polarization control [ 5 , 6 ], electromagnetic (EM) stealth [ 7 , 8 ], radar antenna [ 9 , 10 ], photodetectors [ 11 ], tunable color filters [ 12 ], beam steering [ 13 ], etc.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Broadband Mid-Infrared Metamaterial Absorber Based on Multi-Sized Resonators

et al. 2022

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Mid-infrared metamaterial absorbers have many applications in the field of infrared detection, infrared thermal energy utilization, radiation refrigeration, invisible camouflage, etc. In this study, we designed an ultra-broadband mid-infrared metamaterial absorber based on multi-sized resonators. The structure of the absorber consisted of a gold substrate and nine resonators. The simulated results showed that the absorptivity of the absorber was higher than 90% in the 8.33–15.09 μm waveband with an average absorptivity of 95.17%. The energy distributions of the electric and magnetic fields were introduced to investigate the physics of broadband absorption. Moreover, we combined the multi-layer structure with the plane random arrangement structure to achieve a balance between thickness and width. Our study further illustrates the potential application of multi-sized resonators in metamaterial absorbers to realize high absorptivity and ultra-broadband to improve the performance of devices applied in infrared detection, radiation refrigeration, and other fields.

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“…Because the permittivity and permeability of electromagnetic metamaterial absorbers can be controlled by artificially designing them, [1,2] they have attracted the attention of many researchers in the fields of radar antennae, [3,4] electromagnetic stealth, [5,6] lenses, [7,8] biological detection, [9] sensor technology, [10,11] and so on. In 2008, Landy et al [12] first presented a perfect metamaterial absorber, and since then metamaterial absorbers have made great progress.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a Polarization‐Insensitive and Wide‐Angle Ultrabroadband Metamaterial Absorber

Luo

Zhao

et al. 2021

Physica Status Solidi (b)

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Herein, a polarization-insensitive and wide-angle characteristic ultrabroadband metamaterial absorber (UBMMA) is reported, which covers the entire X band and Ku band and parts of the C band and K band. The standard unit cell of the UBMMA is designed based on the frustum of a cone with a through-hole, and it is composed of multiple metal and dielectric layers by cross. The calculation results indicate that the absorptivity of the proposed UBMMA is more than 85% from 6.65 to 23.73 GHz except for the frequency bands 13.10-13.20 and 15.38-15.73 GHz, and the absorptivity is more than 90% in the frequency bands 6. 65-12.25 and 20.33-23.33 GHz. The distributions of the electric field, magnetic field, and surface current are calculated and analyzed, and the absorbing mechanism of the UBMMA is explained. The UBMMA is insensitive to the transverse electric and transverse magnetic polarization, and it displays an agreeable absorption effect under high incident angles. The influence of important geometric parameters on the absorption performance of the UBMMA is studied. Because of the satisfactory ultrabroadband absorption performance of the UBMMA, it can be applied in the fields of satellite radar, broadband antennae, and electromagnetic shielding.

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Metamaterial Antenna Designs for a 5.8-GHz Doppler Radar

Cited by 31 publications

References 31 publications

Low-cost, compact, and reconfigurable antennas using complementary split-ring resonator metasurface for next-generation communication systems

Low-cost, compact, and reconfigurable antennas using complementary split-ring resonator metasurface for next-generation communication systems

Ultra-Broadband Mid-Infrared Metamaterial Absorber Based on Multi-Sized Resonators

Design and Analysis of a Polarization‐Insensitive and Wide‐Angle Ultrabroadband Metamaterial Absorber

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