Broadband and High-Gain Microstrip Patch Antenna Loaded With Parasitic Mushroom-Type Structure

Cao, Yufan; Cai, Yici; Cao, Wenquan; Xi, Baokun; Zhang, Qian; Wu, Tao; Zhu, Lei

doi:10.1109/lawp.2019.2917909

Cited by 108 publications

(57 citation statements)

References 15 publications

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“…Figure 13 shows the radiation pattern of the all antennas understudy, OPEFF/PCL, NiO/PCL, and OPEFF/NiO/PCL at the resonant frequency of 1.95, 1.8, and 1.724 GHz, respectively. The radiation pattern of the three patch antennas is generally its most basic requirement because it determines the distribution of radiated energy in space, where It is observed a remarkable focusing in the radiated fields from the dipoles to the end of the path [ 51 ]. The purpose of this work is to design an antenna that is small-sized, consumes less power with low cost, and can be used for low band communication applications.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications

et al. 2020

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The study intended to utilizing waste organic fiber for low-cost semi-flexible substrate fabrication to develop microstrip patch antennas for low band communication applications. All the semi-flexible substrates (12.2 wt. % OPEFF/87.8 wt. % PCL, 12.2 wt. % NiO/87.8 wt. % PCL, and 25 wt. % OPEFF/25 wt. % NiO/50 wt. % PCL) were fabricated by oil palm empty fruit fiber (OPEFF) mixed with nickel oxide (NiO) nanoparticles reinforced with polycaprolactone (PCL) as a matrix using a Thermo Haake blending machine. The morphology and crystalized structure of the substrates were tested using Fourier transform infrared (FTIR) spectrometry, X-ray diffraction (X-RD) technique, and scanning electron microscopy (SEM), respectively. The thermal stability behavior of the substrates was analyzed using thermogravimetric analysis (TGA) and differential thermogravimetric (DTG) thermogram. The dielectric properties were characterized by an open-ended coaxial probe (OEC) connected with Agilent N5230A PNA-L Network Analyzer included the 85070E2 dielectric software at frequency range of 8 to 12 GHz. The experimental results showed that NiO/OPEFF/PCL composites exhibit controllable permittivity dielectric constant εr′(f) between 1.89 and 4.2 (Farad/meter, (F/m)), with loss factor εr′′(f) between 0.08 and 0.62 F/m, and loss tangent (tan δ) between 0.05 and 0.18. Return losses measurement of the three patch antennas OPEFF/PCL, NiO/PCL, and OPEFF/NiO/PCL are −11.93, −14.2 and −16.3 dB respectively. Finally, the commercial software package, Computer Simulation Technology Microwave Studio (CSTMWS), was used to investigate the antenna performance by simulate S-parameters based on the measured dielectric parameters. A negligible difference is found between the measured and simulated results. Finally, the results obtained encourage the possibility of using natural fibers and nickel oxide in preparation of the substrates utilize at microwave applications.

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Section: Resultsmentioning

confidence: 99%

Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications

et al. 2020

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“…A transmission-line model is employed to determine the resonant frequency for the quasiTM 20 mode in theory. The extended length can be approximated to that of the corresponding entire rectangular patch, as given in [31].…”

Section: B Comparison With Conventional Patch Antennamentioning

confidence: 99%

Multi-Mode High-Gain Antenna Array Loaded With High Impedance Surface

Chen

2020

IEEE Access

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A novel and simple broadband antenna array loaded with high impedance surface is proposed in this letter. The unit cell is composed of a main radiating patch and a pair of EBG arrays placed symmetrically at the two radiating edges of the main radiating patch. The main radiating patch is responsible for the original TM 10 mode while the electromagnetic bandgap (EBG) arrays is for another resonant mode characterized as quasi-TM 20 mode. Thus, wideband performance is obtained due to the combination of the two generated resonant modes. And on this basis, by adding symmetrical mushroom structures at the other two edges of the main radiating patch, the impedance bandwidth and sidelobe suppression are improved. The current distributions on the all metal patches are almost uniform, therefore high gains can be obtained during the whole operating bandwidth. The antenna array is formed by 4 × 4 unit cells and the prototype is fabricated to validate the design. The measured results show that the impedance bandwidth is broadened from 11.1 to 15.6 GHz with the peak-gain reaching as high as 18.8dBi. Besides, the proposed antenna is easy fabrication with low profile which provides great convenience in the actual beam and point-to-point communication applications.

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“…With the development of modern communication systems in recent years, expansive studies have been conducted to increase the bandwidth of microstrip patch antennas along with characteristics such as low profile and cross polarization [3,4]. Various techniques like adding a parasitic strip around the radiative element [5,6], creating a slot in the patch [7,8], differential-feed [9,10], increasing the thickness of the substrate and stacking [11], and exciting different radiation modes [13][14][15] are presented for increasing said bandwidth. However, they have some disadvantages such as a resulting increase of cross polarization, destabilization of the radiation pattern, and increase in the substrate's thickness.…”

Section: Introductionmentioning

confidence: 99%

“…However, the size and thickness of the antenna were significant as the antenna's area and thickness were 1.3λ 2 g and 0.17λ g , respectively. A wideband microstrip patch antenna with two parasitic mushroom-type arrays with an area of 2.78 was presented in [6]. The use of parasitic elements made the antenna larger and destabilized the radiation pattern.…”

Section: Introductionmentioning

confidence: 99%

A Novel Wideband Microstrip Patch Antenna With Non-Uniform Feed Based on Model Predictive

Farahani¹,

Mohammad-Ali-Nezhad²

2020

PIER M

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A novel wideband microstrip patch antenna with nonuniform transmission line feed is presented using model predictive control. Nonlinear model predictive control (NMPC) is used to achieve a nonuniform transmission line that matches with the microstrip patch antenna. The transmission line is extended using cosine expansion with the impedance differential equation then being used as the dynamic NMPC equation to find the unknown coefficients of that cosine expansion. The transmission line is designed such that the impedance of the input port matches the impedance of the microstrip antenna at the resonance frequency and its adjacent frequencies. The proposed antenna's impedance is 5.15-5.85 GHz. In this bandwidth, the radiation pattern is stable; the cross polarization and back lobe are −30 dB and −20 dB, respectively. The error in the impedance bandwidth is about 4.2%. The simulation and measurement results are considered satisfactory.

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Broadband and High-Gain Microstrip Patch Antenna Loaded With Parasitic Mushroom-Type Structure

Cited by 108 publications

References 15 publications

Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications

Preparation and Characterization of Semi-Flexible Substrates from Natural Fiber/Nickel Oxide/Polycaprolactone Composite for Microstrip Patch Antenna Circuitries for Microwave Applications

Multi-Mode High-Gain Antenna Array Loaded With High Impedance Surface

A Novel Wideband Microstrip Patch Antenna With Non-Uniform Feed Based on Model Predictive

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