Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array

Zhou, Pingyuan; Zhang, Zhuo; He, Ming; Hao, Yihang; Zhang, Chuanfang

doi:10.1155/2018/5691561

Cited by 7 publications

(6 citation statements)

References 11 publications

(29 reference statements)

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“…Parasitic or slot element is a conductive plate, rod or cut-outs [24]. The size and shape of the slot and the driving frequency determine the radiation pattern of the antenna [25,26]. Its main advantages are the simplicity of design and its suitable adaptation to mass production using either printed circuit (PC) board technology or waveguide [27,28].…”

Section: Printed Cp Antennasmentioning

confidence: 99%

A comprehensive survey on ‘circular polarized antennas’ for existing and emerging wireless communication technologies

Nadeem¹,

Alibakhshikenari²,

Babaeian³

et al. 2021

J. Phys. D: Appl. Phys.

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Circular polarized (CP) antennas are well suited for long-distance transmission attainment. In order to be adaptable for beyond 5G communication, a detailed and systematic investigation of their important conventional features is required for expected enhancements. The existing designs employing millimeter wave, microwave, and ultra-wideband (UWB) frequencies form the elementary platform for future studies. The 3.4-3.8 GHz frequency band has been identified

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Section: Printed Cp Antennasmentioning

confidence: 99%

A comprehensive survey on ‘circular polarized antennas’ for existing and emerging wireless communication technologies

Nadeem¹,

Alibakhshikenari²,

Babaeian³

et al. 2021

J. Phys. D: Appl. Phys.

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show abstract

“…Therefore, the key point to design a linear to circular polarization convertor is how to meet the amplitude and phase conditions. When rotated with respect to an incident linearly polarized signal, a circular or rectangle split ring will produce a variation of both the amplitude and phase in the signal reflected from it or through it [15]. Based on this principle, we propose a double U-type split ring CP polarization convertor.…”

Section: Design and Operating Principlementioning

confidence: 99%

Design of Modified Single-Layer Double U-Type Linear to Circular Polarization Convertor

Zhou

Chen

et al. 2019

International Journal of Antennas and Propagation

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This paper proposes single-layer periodic arrays of freestanding slot frequency-selective surface (FSS) as an approach to convert linearly polarized wave to circularly polarized wave. The double U-type structure is etched on a metal plate rather than a traditional print circuit board (PCB) material. It has the characteristics of broadband and could be applied to the situation of large incident angles. Numerical simulations have been carried out, and the prototype structures have been fabricated and experimentally validated. The whole thickness is only 1 mm, and the results show that 3 dB axial ratio (AR) bandwidth is 36.6% at normal incident (16.5% at ±60°). An insertion loss of under 3 dB can be achieved within the whole AR bandwidth.

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“…A multiband antenna operating in GSM900, LTE2300, and UMTS1900 is proposed in [5], the structure of the design sizes 55 × 12 × 4 mm 3 which make the antenna unsuitable for smartwatches. A miniaturized implantable ARRAY antenna was proposed in [6] and in [7], both array designs cover the GPS band entirely, but both of them do not cover the LTE bands and present big size. Wang et al proposed a miniaturized antenna for GPS applications in [8], but the proposed antenna is difficult to manufacture and does not cover the UMTS or the LTE bands.…”

Section: Introductionmentioning

confidence: 99%

Novel Low-Cost Integrated Multiband Antenna Design Customized for Smartwatch Applications with SAR Evaluation

Fady

Tribak

Terhzaz³

et al. 2020

International Journal of Antennas and Propagation

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This paper presents a novel low-cost integrated multiband antenna design customized for smartwatch applications and wearable devices. The design consists in using a broadband planar patch antenna with circular microstrip lines and a miniaturized feeding-point with a structure of 30 × 30 × 1.6 mm3, and it is easy to deploy inside the smartwatch and cost-effective for the wearable device industry. The parametric study and final dimensions of the design and the measured results of the reflection and radiation pattern are discussed. The antenna with maximum gain up to 6.6 dBi and S11 up to −22 dB exhibits excellent performance for all the frequencies required in wearable systems such as 1.9 GHz, 2.3 GHz, 2.4 GHz, 2.6 GHz, 5.2 GHz, and 5.8 GHz. We drew a comparison between similar research and this work in terms of antenna performance. Furthermore, we investigate the specific absorption rate (SAR) performance of the antenna for the smartwatch application, using both human hand wrist multilayer and SAM head mouth models. The SAR results in different positions for all the frequencies are compared to the Federal Communication Commission (FCC) standards.

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Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array

Cited by 7 publications

References 11 publications

A comprehensive survey on ‘circular polarized antennas’ for existing and emerging wireless communication technologies

A comprehensive survey on ‘circular polarized antennas’ for existing and emerging wireless communication technologies

Design of Modified Single-Layer Double U-Type Linear to Circular Polarization Convertor

Novel Low-Cost Integrated Multiband Antenna Design Customized for Smartwatch Applications with SAR Evaluation

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