Design of compact ultra wideband antenna for microwave medical imaging application

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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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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Modified design of microstrip patch antenna for UWB applications

Serbian Journal of Electrical Engineering ◽

10.2298/sjee2001021e ◽

2020 ◽

Vol 17 (1) ◽

pp. 21-30

Author(s):

Bashar Elias ◽

Haider Aljanabi

Keyword(s):

Method Of Moments ◽

Patch Antenna ◽

Impedance Matching ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Uwb Antenna ◽

Sidelobe Level ◽

Microstrip Patch ◽

Half Power ◽

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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Bandwidth Improvement of Stub Loaded Compact Ultra-Wideband Microstrip Patch Antenna for C/X-Band Applications

Wireless Personal Communications ◽

10.1007/s11277-021-08441-z ◽

2021 ◽

Author(s):

Ramesh Kumar Verma ◽

D. K. Srivastava

Keyword(s):

Patch Antenna ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Microstrip Patch ◽

X Band

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Bandwidth enhancement of a microstrip patch antenna for ultra-wideband applications

10.1063/1.5032015 ◽

2018 ◽

Author(s):

Khanda Anum ◽

Milind Saurabh Singh ◽

Rajan Mishra ◽

G. S. Tripathi

Keyword(s):

Patch Antenna ◽

Microstrip Patch Antenna ◽

Ultra Wideband ◽

Bandwidth Enhancement ◽

Microstrip Patch

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Omnidirectional Microstrip Patch Antenna for 2.4 GHz Wireless Communications

Journal of Physics Conference Series ◽

10.1088/1742-6596/2114/1/012051 ◽

2021 ◽

Vol 2114 (1) ◽

pp. 012051

Author(s):

Alaa M. Abdulhussein ◽

Ali H. Khidhi ◽

Ahmed A. Naser

Keyword(s):

Computer Simulation ◽

Wireless Communications ◽

Wireless Communication ◽

Patch Antenna ◽

Communication Systems ◽

Return Loss ◽

Microstrip Patch Antenna ◽

Wireless Communication Systems ◽

Microstrip Patch ◽

Operating Bandwidth

Abstract Antenna studies on various wireless communication systems have been carried out by many academics. In this research, the omnidirectional microstrip patch antenna (MPA) is proposed, manufactured, and tested. The operating bandwidth of the antenna is quite suitable for the different applications. The proposed antenna fabricated on the flame retardant (FR-4) substrate with a volume of 75.85 × 57.23 × 1.59 mm3. Computer simulation technology (CST) studio used to design and simulate. Experimental results show that the return loss (RL), bandwidth (BW), voltage standing wave ratio (VSWR) and input impedance (Zin ) are -25.26 dB, 61 MHz, 1.12 and 54.46 Ω, respectively. The antenna operates at 2.42 GHz (from 2.39 to 2.45 GHz), which has good performance in the Wi-Fi, Bluetooth, and ZigBee communications.

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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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