Broadband and high‐gain printed antennas constructed from Fabry–Perot resonator structure using EBG or FSS cover

Zhang, Ge; Zhang, Wenxun; Liu, Zhenguo; Gu, Yingying

doi:10.1002/mop.21674

Cited by 62 publications

(34 citation statements)

References 6 publications

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“…High-gain antenna using a frequency selective surface (FSS) or electromagnetic band gap (EBG) resonator have similar characteristics as that of PRS antennas; however, PRS antennas tend to have lower profiles than EBG antennas [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of superstrate material on a high‐gain antenna using array of parasitic patches

Gupta

Mukherjee

2009

Micro & Optical Tech Letters

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This article highlights the effect of superstrate material on a high-gain antenna using array of parasitic patches for wireless applications. The antenna structure consists of a microstrip antenna, which feeds an array of square parasitic patches fabricated on a ceramic or FR4 superstrate. The patches on a superstrate are suspended in air at k 0 /2. The spacing between parasitic patches and patch dimensions decrease with dielectric constant and, thus, a compact antenna with almost same gain can be designed with high dielectric superstrate. The structures with 5 Â 5 array of square parasitic patches provide a gain of 17.5 dB on infinite ground plane in both the cases but the array dimension is 55 Â 55 mm 2 in ceramic as compared to 115 Â 115 mm 2 Antenna with ceramic superstrate on finite ground requires 25% less ground plane size as compared to FR4. Structure with FR4 superstrate is designed, fabricated, and tested. The measured VSWR is <2 over 5. 725-5.875 GHz frequency band. The antenna with 5 Â 5 array of square parasitic patches provides a gain of 18.0 dB with 92% efficiency, SLL of À18.4 dB, and front to back lobe ratio of more than 20 dB. The proposed structure can be packaged inside an application platform.

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Section: Introductionmentioning

confidence: 99%

Effect of superstrate material on a high‐gain antenna using array of parasitic patches

Gupta

Mukherjee

2009

Micro & Optical Tech Letters

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“…This investigation provides great opportunities to the high gain antenna design. As it is well known, some previous research works employed photonic crystal cover as a superstrate above the radiation source for obtaining higher directivity [8][9][10][11][12]. Enlightened by their work, Jun Hu et al used a low-refraction index MTMs as a cover on a patch antenna for improving directivity [13].…”

mentioning

confidence: 97%

“…The structure is designed for the Ku-band (12)(13)(14)(15)(16)(17)(18). In our simulation discussion, the MTMs is composed of metallic grids with periodic square lattice and slices of foam (ε r =1.08 at 10 GHz).…”

mentioning

confidence: 99%

Low Refractive Metamaterials for Gain Enhancement of Horn Antenna

Zhang

2008

J Infrared Milli Terahz Waves

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A flat metamaterials (MTMs) structure with low refractive index is proposed as a cover in a high-gain horn antenna configuration. The MTMs is composed of two-layer metallic grids and slices of foam. For the characterization of the MTMs, the low refraction property is studied and the effective refractive index n≈0.08 (12.0 GHz) is retrieved. The antenna gain and the radiation pattern are calculated. Because of the electromagnetic wave congregating effect of the MTMs, the gain of the horn with MTMs greatly increases (about 4 dB from 11.8 GHz-12.8 GHz) when compared with the conventional type. We conducted the experiments to verify the simulation results. The idea has a good potential application to the feed design of parabolas.

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“…The presented sensor has a frequency change of 220 MHz for a 100-µm crack and 600 MHz for a 1-mm crack [41]. Additionally, the sensor operates at a low frequency (approximately 5 GHz) with improved resolution and sensitivity [42][43][44].…”

Section: Complementary Split-ring-resonator-loaded Substrate Integratmentioning

confidence: 99%

Review of Electromagnetic-Based Crack Sensors for Metallic Materials (Recent Research and Future Perspectives)

Memon

Lim

2016

Metals

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Evaluation and non-destructive identification of stress-induced cracks or failures in metals is a vital problem in many sensitive environments, including transportation (steel railway tracks, bridges, car wheels, etc.), power plants (steam generator tubing, etc.) and aerospace transportation (landing gear, aircraft fuselages, etc.). There are many traditional non-destructive detection and evaluation techniques; recently, near-field millimeter waves and microwave methods have shown incredible promise for augmenting currently available non-destructive techniques. This article serves as a review of developments made until now on this topic; it provides an overview of microwave scanning techniques for crack detection. This article summarizes the abilities of these methods to identify and evaluate cracks (including describing their different physical properties). These methods include applying filters based on dual-behavior resonators (DBRs), using complementary split-ring resonators (CSRRs) for the perturbation of electric fields, using waveguide probe-loaded CSRRs and using a substrate-integrated-waveguide (SIW) cavity for the detection of sub-millimeter surface and subsurface cracks.

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Broadband and high‐gain printed antennas constructed from Fabry–Perot resonator structure using EBG or FSS cover

Cited by 62 publications

References 6 publications

Effect of superstrate material on a high‐gain antenna using array of parasitic patches

Effect of superstrate material on a high‐gain antenna using array of parasitic patches

Low Refractive Metamaterials for Gain Enhancement of Horn Antenna

Review of Electromagnetic-Based Crack Sensors for Metallic Materials (Recent Research and Future Perspectives)

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