Dual-Polarized Linear Array With Overlapping Handover of Subarray to Produce Continuous Beam Scanning for Transmitarray Antenna

Yu, Yin-Hua; Zong, Zhi‐Yuan; Wu, Wen; Chen, Qiaoyu; Fang, Da‐Gang

doi:10.1109/tap.2020.3016467

Cited by 16 publications

(6 citation statements)

References 40 publications

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“…In Reference 65, the transmitarray's elements are a three‐layered identical double‐circle metal ring structure for its low sensitivity to illumination under oblique incidence 68 . Through continuous displacement of the virtual point source, the dual‐polarized linear array with overlapping handover of subarray may achieve continuous beam scanning.…”

Section: Electronic Scanning Methodsmentioning

confidence: 99%

“…Changing the phase of the elements on the phase shifting surface is often difficult or can result in transmission losses due to its small size or complex structure. Therefore, some scholars have studied in using phased array to irradiate the transmitarray, which is designed with artificial materials 65,66 or dielectric lens, 67 to achieve wide scanning angle and high gain. The proposed transmitarray can perform continuous beam scanning by dynamically adjusting the amplitude and phase distribution on the phased array aperture.…”

Section: Transmitarraysmentioning

confidence: 99%

See 1 more Smart Citation

A review of microwave electronically scanned array: Concepts and applications

Sun

Zhao

Zheng

et al. 2022

Int J RF Mic Comp-Aid Eng

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As the application of microwave to radar and 5G communication goes wider, the array beam scanning capability has become an important and popular issue in modern society. Appropriate implementation of beam scanning methods suitable for diverse conditions could provide better performance and help to save costs for a system. Moreover, electronically scanned array has the characteristics of fast beam switching rate, high measurement accuracy and low profile. Thus, discussions on typical electronic scanning approaches are particularly necessary. This paper first presents a review of typical electronic scanning approaches to microwave arrays, such as the phased array, the focused aperture array, the frequency scanning array, and the time modulated array. And then some latest designs in the industry have been introduced. In addition, problems appeared in the application of the phased array and relevant solutions have been put forward. For the rest, some discussions are briefly summarized, as well as some comments on future trend in this field.

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Section: Electronic Scanning Methodsmentioning

confidence: 99%

Section: Transmitarraysmentioning

confidence: 99%

A review of microwave electronically scanned array: Concepts and applications

Sun

Zhao

Zheng

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…When it comes to beam-scanning antenna schemes, there are various candidates, such as phased lens antenna arrays [ 1 , 2 ], lens-array antenna [ 3 ], phased transmitarray antennas [ 4 , 5 , 6 ], rotatable transmitarrays [ 7 , 8 ], curved-surface transmitarrays [ 9 ], curved-surface lens [ 10 ] and so on. These works are all carried out at frequencies below 100 GHz, where the beam-scanning techniques and machining processes used therein are relatively mature.…”

Section: Introductionmentioning

confidence: 99%

“…The array feed technique [ 4 , 5 , 6 ] is adopted to reduce the profile and cut the F/D [ 20 ]. Flexible and controllable excitation is the basis for beam diversity.…”

Section: Introductionmentioning

confidence: 99%

High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna

Yang

2023

Sensors

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In this article, a high-gain millimeter-wave transmitarray antenna (TAA) maintaining scanning ability is developed, integrating an array feed as the primary emitter. The work is achieved within a limited aperture area, avoiding the replacement or extension of the array. The addition of a set of defocused phases along the scanning direction to the phase distribution of the monofocal lens allows the converging energy to be dispersed into the scanning scope. The beam forming algorithm proposed in this article can determine the excitation coefficients of the array feed source, and is beneficial to improve the scanning capability in array-fed transmitarray antennas. A transmitarray based on the square waveguide element illuminated by an array feed is designed with a focal-to-diameter ratio (F/D) of 0.6. A 1-D scan with a scope of −5° to 5° is realized through calculation. The measured results show that the transmitarray can achieve a high gain, 37.95 dBi at 160 GHz, although a maximum 2.2 dB error appears compared with the calculation in the operating band of 150–170 GHz. The proposed transmitarray has been proven to generate scannable high-gain beams in the millimeter-wave band and is expected to demonstrate its potential in other applications.

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“…In this way, continuous scanning beams can be realized. In [18], a linear array with overlapping handover of subarray is proposed to produce the continuous movement of the virtual focal point. Through switches and one phase shifter, scanning beams of transmitarray can be controlled.…”

Section: Introductionmentioning

confidence: 99%

One‐dimensional high‐gain beam‐scanning transmitarray fed by phased array with continuous electronic scan and low scan loss

Zhu

Guo

et al. 2022

IET Microwaves Antenna & Prop

Self Cite

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In this study, the design of a one‐dimensional high‐gain beam‐scanning transmitarray fed by a phased array with continuous electronic scan and low scan loss is displayed and demonstrated. The feeding linear phased array realizes continuous beam scanning in one plane. And the transmitarray performs phase compensation along another plane to increase the gain. The traditional array‐fed scanning transmitarray has homogeneous phase compensation in one direction. Differently, the phase compensation in the proposed method is carefully designed considering that the beam is scanning. By designing the phase distribution of the transmitarray column by column, the scan loss is successfully reduced. The experimental results of a designed scanning transmitarray fed by a phased array without feeding network show the peak gain of 22.76 dBi and the scan loss of only 1.43 dB within the scanning range of ±35° at the centre frequency of 13.5 GHz. Hence, the advantages of continuous electronic scan, high gain, and low scan loss are validated. Moreover, by integrating the power divider and phase shifters into the feeding phased array, the measured gain increment of 8.26–9.89 dB and the scan loss of 1.74 dB within ±35° are obtained.

show abstract

Dual-Polarized Linear Array With Overlapping Handover of Subarray to Produce Continuous Beam Scanning for Transmitarray Antenna

Cited by 16 publications

References 40 publications

A review of microwave electronically scanned array: Concepts and applications

A review of microwave electronically scanned array: Concepts and applications

High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna

One‐dimensional high‐gain beam‐scanning transmitarray fed by phased array with continuous electronic scan and low scan loss

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