Theory, Design, and Implementation of a New Family of Ultra-Wideband Metamaterial Microstrip Array Antennas Based on Fractal and Fibonacci Geometric Patterns

Shookooh, Besharat Rezaei; Monajati, Alireza; Khodabakhshi, Hamid

doi:10.26866/jees.2020.20.1.53

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…Although other radio frequency signal-based positioning systems, including GPS, Wi-Fi, and Bluetooth, already exist, GPS signals cannot be used due to non-line-ofsight satellite signals and other technologies do not provide sufficient accuracy and reliability in indoor environments [4]- [7]. Note that UWB short pulse signals can increase the transmission speed, overcome multipath fading and frequency selective fading, and offer the high security and resolution for precise indoor positioning systems [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Novel Compact UWB Planar Monopole Antenna Using a Ribbon-Shaped Slot

Park

Jung

2022

IEEE Access

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Ultra-Wideband (UWB) is a wireless communication technology that can be utilized for precise indoor positioning system. UWB is low power-consuming and resistant to complex multipath environments, thanks to a short pulse signal. Since the main desired characteristics of the UWB antennas for radio-frequency localization systems are wide bandwidth, omnidirectional radiation pattern, and low profile for simple integration with printed circuit boards, various planar monopole antennas for UWB applications were proposed to meet the requirements. In order to satisfy these conditions, in this paper, a novel compact UWB planar monopole antenna operating in 3.1 GHz -10.8 GHz is designed on FR-4 substrate. The overall size of the antenna is 12.5 × 12.5 × 1 mm 3 , which is 0.129 λ0 × 0.258 λ0 × 0.01 λ0 in free space at the lowest frequency. The transmission line is designed based on a coplanar waveguide with ground (CPWG) and vias in the CPWG are employed to eliminate non-radiating phenomenon at some specific frequencies. The shape of the radiator is modified from the hexagonal shape and a ribbon-shaped slot inside the radiator is adapted to improve the operating frequency range. The proposed UWB planar monopole antenna is fabricated and measured. The proposed antenna provides good antenna performance from 3.1 to 10.8 GHz and also the radiation patterns at various frequencies are omnidirectional pattern. INDEX TERMS UWB, planar monopole antenna, slot

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Section: Introductionmentioning

confidence: 99%

Novel Compact UWB Planar Monopole Antenna Using a Ribbon-Shaped Slot

Park

Jung

2022

IEEE Access

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“…Various types of antennas, such as monopole antennas [11,12] and slot-based antennas [13][14][15][16][17], [16,17], have been recently reported in the literature for UWB communications. These antennas offer promising features such as low cost, low profile, compact size, and ease of integration.…”

Section: Introductionmentioning

confidence: 99%

A Frequency Selective Surface Loaded UWB Antenna for High Gain Applications

Awan¹,

Choi²,

Hussain³

et al. 2022

Computers, Materials &Amp; Continua

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This paper presents the design of wideband and high gain Frequency Selective Surface (FSS) loaded antenna for ultra-wideband (UWB) wireless applications requiring high-gain. The antenna consists of a monopole and an FSS reflector. Initially, a conventional rectangular monopole antenna is modified using slot and stub to achieve wide operational bandwidth and size reduction. This modified antenna shows 50% miniaturization compared to a primary rectangular monopole, having a wide impedance bandwidth of 3.6-11.8 GHz. Afterward, an FSS is constructed by the combination of circular and square ring structures. The FSS array consisting of 8 × 8-unit cells are integrated with the antenna as a reflector to enhance the performance of the proposed miniaturized UWB antenna. The loading of FSS results in an improvement of at least 4 dBi gain in the entire operational bandwidth. Moreover, the antenna's bandwidth is also increased at the lower frequency band due to the presence of the FSS. A prototype of the antenna is fabricated and tested to verify the simulation results. The simulation and measurement results show that the antenna offers a wideband -10 dB impedance bandwidth ranging from 2.55-13 GHz with a stable peak gain of 8.6 dBi and retains the radiation pattern stability.

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