Modified design of microstrip patch antenna for UWB applications

Ultra-wideband (UWB) patch antenna for Ku/K band applications is presented. In this paper, a microstrip line feed has been modified to an elliptical gradient structure, and the conventional radiator patch has been developed through the use of the symmetrically circular slots. These modifications have been used to improve the performance of the antenna significantly. Upper and lower frequency ranges achieve UWB antenna performances start from 11.57 GHz to 21.45 GHz. Proposed antenna exhibits good impedance matching, which makes it convenient to work in various applications. Besides that, the reflection coefficient is reduced attained to -31.81 dB over the operating band. The antenna is developed and analyzed using the commercially available software FEKO simulator based on the method of moments (MoM). Other parameters results such as sidelobe level (SLL) and beamwidth (half power - 3 dB) are added and discussed significantly. The proposed design is fabricated and tested experimentally, and the results show that a satisfying agreement with the simulation results.

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Design and Analysis of Miniaturized Microstrip Patch Antenna with Metamaterials Based on Modified Split-Ring Resonator for UWB Applications

Frequenz ◽

10.1515/freq-2016-0004 ◽

2016 ◽

Vol 70 (11-12) ◽

Cited By ~ 1

Author(s):

D. Khedrouche ◽

T. Bougoutaia ◽

A. Hocini

Keyword(s):

Patch Antenna ◽

Ring Resonator ◽

Federal Communication Commission ◽

Split Ring Resonator ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Band Spectrum ◽

Split Ring ◽

Microstrip Patch ◽

Uwb Applications

AbstractIn this paper, a miniaturized microstrip patch antenna using a negative index metamaterial with modified split-ring resonator (SRR) unit cells is proposed for ultra-wideband (UWB) applications. The new design of metamaterial based microstrip patch antenna has been optimized to provide an improved bandwidth and multiple frequency operations. All the antenna performance parameters are presented in response-graphs. Also it is mentioned that the physical dimensions of the metamaterial based patch antenna are very small, which is convenient to modern communication. A 130 % bandwidth, covering the frequency band of 2.9–13.5 GHz, (for return loss less than or equal –10 dB) is achieved, which allow the antenna to operate in the Federal Communication Commission (FCC) band. In addition, the antenna has a good radiation pattern in the ultra-wide band spectrum, and it is nearly omnidirectional.

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UWB RECTANGULAR SLOTTED MICROSTRIP PATCH ANTENNA IN PROXIMITY OF HUMAN ARM MODEL

Jurnal Teknologi ◽

10.11113/jt.v78.8560 ◽

2016 ◽

Vol 78 (5-4) ◽

Author(s):

Muhammad Syafiq Noor Azizi ◽

Azahari Salleh ◽

Adib Othman ◽

Najmiah Radiah Mohamad ◽

Nor Azlan Aris ◽

...

Keyword(s):

Dielectric Constant ◽

Patch Antenna ◽

Free Space ◽

Return Loss ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Uwb Antenna ◽

Study Behavior ◽

Microstrip Patch ◽

Human Arm

In this paper, we study behavior of Ultra wideband antenna which is Rectangular Slotted Microstrip Patch Antenna. Then, the antenna operated in proximity of human arm model. Furthermore, the antenna is designed on a FR-4 substrate with dielectric constant of 4.3 and thickness 1.6 mm. This antenna simulated in CST Microwave Studio software. In order to test the antenna, an arm model was numerically modelled. The study shows properties and performances of antenna when it is placed in three situations which in free space, outside and inside of human arm model. The properties of UWB antenna in term of return loss, gain, directivity and radiation pattern in the three situations is simulated and discussed.

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A CPW-fed Irregular Shaped Hexagonal Patch Antenna with Elliptical Substrate for UWB Applications

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.b6357.129219 ◽

2019 ◽

Vol 9 (2) ◽

pp. 373-376

Keyword(s):

Patch Antenna ◽

Impedance Matching ◽

Ultra Wideband ◽

Total Efficiency ◽

Uwb Antenna ◽

Radiation Characteristics ◽

Wide Range ◽

Uwb Applications ◽

Novel Design ◽

Peak Gain

A novel design of Ultra-Wideband (UWB) antenna with irregularly shaped hexagonal patch built on the elliptical-shaped FR-4 laminate with εr = 4.3 and tanδ = 0.025 is presented. The feed mechanism utilized in the structure proposed is modified co-planar waveguide (CPW), the feeding microstrip is tapered near the connecting edge of the patch for better impedance matching. The proposed antenna is compared with the traditional rectangular substrate and found that the elliptical substrate enhances the radiation characteristics of the antenna and is capable of functioning effectively in the range of 3.1 GHz-11.7 GHz, accompanied by the total efficiency > 86% across the whole FCC allocated UWB operating band. The antenna can be used for wide range of UWB applications as it exhibits good omnidirectional characteristics with a realized peak gain of 4.178dB and an average realized gain of 3.063dB. The simulation work of the antenna is accomplished using CST Studio (v. 2014).

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Design of Star-Shaped Microstrip Patch Antenna for Ultra Wideband (UWB) Applications

International Journal of Wireless & Mobile Networks ◽

10.5121/ijwmn.2013.5405 ◽

2013 ◽

Vol 5 (4) ◽

pp. 65-73 ◽

Cited By ~ 1

Author(s):

Mustafa Abu Nasr ◽

Mohamed K. Ouda ◽

Samer O. Ouda

Keyword(s):

Patch Antenna ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Microstrip Patch ◽

Uwb Applications

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Design of compact ultra wideband antenna for microwave medical imaging application

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v15.i3.pp1197-1202 ◽

2019 ◽

Vol 15 (3) ◽

pp. 1197

Author(s):

Adib Othman ◽

Nur Ishmah Sabirah Shaari ◽

Abdullah M. Zobilah ◽

Noor Azwan Shairi ◽

Zahriladha Zakaria

Keyword(s):

Medical Imaging ◽

Patch Antenna ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Uwb Antenna ◽

Impedance Mismatch ◽

Wideband Antenna ◽

Microstrip Patch ◽

Imaging Application ◽

Operating Bandwidth

A compact ultra wideband (UWB) antenna for operation at 6 GHz intended for microwave medical imaging (MMI) application is proposed. The microstrip patch antenna (MPA) was design in hexagon shape which is contain H-slot at the centre top of the patch and a slot at the ground. Those slots method is utilised to enhance the operating bandwidth as well as minimising the antenna’s impedance mismatch caused by its proximity to material. Results shows that, the implementation of slot on the patch has profoundly enhance the bandwidth (BW) of the antenna to 503.54 MHz. Measurement of fabricated antenna produce significant result in term of producing wide bandwidth of 520 MHz, with slightly shifting on operating frequency. Therefore, it has been proved that the required performance of UWB antenna has been achieved successfully.

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