A novel broadband reflectarray antenna with lattice stubs on square element for K<scp>u</scp>‐band application

Qotolo, Sajjad Faraji; Hassani, Hamid Reza; Naser‐Moghadasi, Mohammad

doi:10.1002/mop.29416

Cited by 19 publications

(3 citation statements)

References 12 publications

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“…Here the stub is meant to be a small strip transmission line; the incident filed on the patch is re-emitted with a phase shift as measured by the length of the stub's patch [4]. The reflectarrays made up of these types of elements fallouts in relatively narrow bandwidth and high cross polarization.…”

Section: Fig 2: Reflectarray Configurationsmentioning

confidence: 99%

Performance Optimization of Unit-Cell Reflectarray Antenna for Future 5G Communications

Sheikh¹,

Khan²

2017

IJCA

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In this paper, Reflectarray antenna design operating in KaBand at 28GHz for the future fifth generation (5G) wireless communication applications is presented. This reflectarray antenna is proposed and designed based on the two different resonant elements i.e. circular loop with split rings and square loop with split rings. The characterization of each reflectarray element is further carried out in terms of reflection loss, reflection phase, 10% bandwidth and static phase range, respectively. Simulations have been performed using CST MWS simulation software based on Finite Integral Method (FIM). The 10% bandwidth, Figure of Merit (FOM) and the reflection characteristics (including reflection loss and reflection phase) have demonstrated the possibility of using the designated reflectarray antenna optimizely for 5G wireless communications. These antennas have a significant advantage of being light weight and cost effective as compared to the existing conventional bulky reflectors and phased arrays. Due to the remarkable performance of the proposed reflectarray antenna array, it can be considered as a good candidate for 5G communication applications.

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Section: Fig 2: Reflectarray Configurationsmentioning

confidence: 99%

Performance Optimization of Unit-Cell Reflectarray Antenna for Future 5G Communications

Sheikh¹,

Khan²

2017

IJCA

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“…7 The narrower bandwidth of the large-aperture reflectarray antenna will limit its application. In order to improve the bandwidth of the reflectarray antenna, several techniques have been proposed, such as the multilayer structure, [8][9][10][11] the structure with air layer, [12][13][14][15][16][17][18][19] and the true time delay line. [20][21][22][23][24][25][26] These techniques are beneficial to achieve the 360 phase shift and wideband for an element, but the complex structure will increase the manufacturing cost and affect the reflectarray antenna radiation efficiency, especially in the millimeterwave band.…”

Section: Introductionmentioning

confidence: 99%

Millimeter‐wave wide‐band high‐efficiency single‐layer reflectarray antenna with ability of phase‐response restructuration

Liu

Cheng

Yang

2021

Int J RF Microw Comput Aided Eng

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This work presents a single-layer millimeter-wave wide-band high-efficiency reflectarray antenna with the subwavelength element based on the partialoptimization method. A three-loop subwavelength element with the unchanged parasitic outer-ring is used to guarantee the design accuracy and depress the dispersion influence. Then, the partition-optimization method is used to restructure the element phase-response characteristic. The proposed design method is beneficial to expand the reflectarray antenna bandwidth and achieve the high efficiency, especially for the large-aperture reflectarray antenna. A center-fed reflectarray antenna is designed and fabricated at the center frequency of 34 GHz. The measured gain of the proposed reflectarray antenna is 35.4 dBi with the 1 dB gain bandwidth of 20.3%, that is, from 32.3 GHz to 39.2 GHz. The proposed reflectarray antenna can keep the stable radiation pattern for a multi-band wireless backhaul system.

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“…It provides broad reflection phase range by changing the length of outer folded-loop. In [10], a square patch element with attached stubs is proposed for broadband reflectarray. This design provides high gain and a stable angular response.…”

Section: Introductionmentioning

confidence: 99%

A Compact Single Layer Reflectarray Antenna Based on Circular Delay-Lines for X-band Applications

Shabbir

Saleem

Rehman³

et al. 2018

RADIOENGINEERING

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This paper presents a compact single layer reflectarray antenna based on a diagonally notched square patch and a pair of circular delay-lines, for X-band applications. The length and width of circular delay-lines are varied and optimized to attain a linear phase range of more than 600º. The effect of incident angle in TE and TM modes at 0º, 15º and 30º is studied, which offers stable angular phase range. The hybrid Finite Element Boundary Integral (FEBI) method is used for simulation of the whole reflectarray system comprising of 27 × 27 elements and being fabricated on a low cost FR-4 laminate. The measured gain of 24.5 dBi with aperture efficiency of 49.5% is achieved at 10 GHz. The proposed design provides the measured 1-dB gain bandwidth of 12.5% and 3-dB gain bandwidth of 34%. The simulated and measured side-lobe-levels and cross polarizations are less than-25 dB and-40 dB, respectively.

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A novel broadband reflectarray antenna with lattice stubs on square element for Ku‐band application

Cited by 19 publications

References 12 publications

Performance Optimization of Unit-Cell Reflectarray Antenna for Future 5G Communications

Performance Optimization of Unit-Cell Reflectarray Antenna for Future 5G Communications

Millimeter‐wave wide‐band high‐efficiency single‐layer reflectarray antenna with ability of phase‐response restructuration

A Compact Single Layer Reflectarray Antenna Based on Circular Delay-Lines for X-band Applications

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