Dual-Polarized and Wide-Angle Scanning Microstrip Phased Array

Wen, Ya-Qing; Gao, Steven; Wang, Bing‐Zhong; Luo, Qi

doi:10.1109/tap.2018.2835521

Cited by 65 publications

(25 citation statements)

References 19 publications

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“…Since the currents at the antenna inputs are fixed, the active input impedances are also fixed regardless of the changes in the matching networks of the ports. Thus, each port can be separately matched to the input impedance given by (4).…”

Section: Methods and Theorymentioning

confidence: 99%

A Method for Tailoring the Gain Pattern of a Single Antenna Element

Kormilainen

Lehtovuori

Viikari

2021

IEEE Open J. Antennas Propag.

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In this paper, we present a novel method to tailor the radiation pattern of an antenna element, such as a single element of an array, by maximing its partial radiation efficiency in the desired angular space. The tailored pattern of the single element is achieved by current distribution synthesis using multiple feed points in the antenna. A method to determine and realize the currents at the feeds is presented. The method is demonstrated by designing and manufacturing a four-element linear array consisting of tailored antenna elements and comparing its performance to the reference case. The element consists of four closely-spaced metallic patches placed on a substrate backed with a ground plane, and each patch is separately fed. The initial four-port feed is reduced to a single feed with a feeding network based on the determined currents. A conventional patch antenna is chosen as the reference. The simulated and measured results show improvement in the realized gain in the desired angular space.

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Section: Methods and Theorymentioning

confidence: 99%

A Method for Tailoring the Gain Pattern of a Single Antenna Element

Kormilainen

Lehtovuori

Viikari

2021

IEEE Open J. Antennas Propag.

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show abstract

“…The design in [14] owns a high degree of freedom, but it suffers from smaller coverage areas due to the custom structure. In addition, although the degree of freedom does not meet the requirements of many intelligent 5G applications, the design in [15] and [24] has the ability to beam scan at a large angle. However, the bulky feed networks in fabricating both structures are quite expensive compared to the miniaturized circuit control module in the proposed work.…”

Section: E Comparisonmentioning

confidence: 99%

“…Therefore, the application of beam scanning technology on the base station has become a current research hotspot. In general, phase array technology with bulky feed components and additional costs is used in this case [15]- [17]. However, beam switching technology is an alternative approach with a wide scanning angle, which further reduces the volume of the antenna system.…”

Section: Introductionmentioning

confidence: 99%

Omnidirectional Solid Angle Beam-Switching Flexible Array Antenna in Millimeter Wave for 5G Micro Base Station Applications

Jia

Xiong

et al. 2019

IEEE Access

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This study proposes a cylindrical conformal array antenna (CCAA) for fifth-generation (5G) micro base station applications. The CCAA is composed of five Chebyshev flexible linear array antennas (LAAs) with a circumferentially uniform arrangement on the cylindrical surface. The LAA with a logarithmic periodic arrangement is constructed by synthesizing the current amplitude distribution coefficients in elements with the Chebyshev method. The LAA with a half-power bandwidth (HPBW) wider than 76 • (−38.41 • to 38.58 • ) and a peak gain greater than 10 dBi is fabricated via the micro-electromechanical system process. Cost-performance analysis shows that five is the best number of linear arrays. To achieve omnidirectional switching scanning of the circumferential section, five LAAs wrapped on the cylindrical surface are individually excited by connecting a radio frequency semiconductor switch to the exciting ports of an eight-way power divider. Moreover, beam-switch scanning of the CCAA is measured with the aid of a standard anechoic chamber. The irradiated performance with low mutual coupling and high realized gain is verified to be irrelevant to the structural variation of various flexible experiments of LAAs wrapped around a cylindrical surface. The CCAA with beam-switch scanning operates at 26 GHz and belongs to the 5G millimeter-wave band. Results show the proposed antenna achieves omnidirectional scanning property in the H plane and has a HPBW of only 9.08 • in the E plane. The performances of the CCAA present potential advantage in flexible terminal equipment wireless communication.INDEX TERMS Beam switching, flexibility, Chebyshev linear array antenna, cylindrical conformal array antenna, millimeter wave, 5G.

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“…Recently, the research on dual-polarized wide-angle scanning phased arrays is booming. [11][12][13][14][15][16] Dual-polarized wide-angle scanning arrays have been realized by means of stack patch reflectarrays, 11 tight coupling techniques, 12 combination of different resonance modes, 13,14 pattern reconfiguration techniques, 15 and high-impedance surfaces. 16 For example, in Reference 13, a dual-polarized wide-angle scanning phased array was achieved by simultaneously exciting the zeroth-order resonance mode and TM 010 mode.…”

Section: Introductionmentioning

confidence: 99%

Hybrid topology optimization of dual‐polarized wide‐beam antenna and its application in wide‐angle scanning array

Zhu

Yang

Wang

et al. 2021

Int J RF Mic Comp-Aid Eng

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A dual-polarized wide-beam (DPWB) antenna is optimized by a hybrid topology optimization (HTO) method, which combines the scalar isotropic material with penalization and the level set method. The HTO method has high optimization freedom degree, strong topology-searching ability and fast convergence speed. The initial model of the antenna is designed as a dual-feeding square microstrip patch antenna with short-circuit metal walls around the patch. By optimizing the metal patch on the upper side of the model, the DPWB antenna is obtained. The DPWB antenna is symmetric with respect to both ports. When fed to either port, the half-power beamwidth of the DPWB antenna can reach 166 (À82 ~84 ) in the E-plane and 124 (À62 ~62 ) in the H-plane. The performance is verified by both simulation and measurement. The DPWB antenna is further applied to a linear phased array, reaching an E-plane scanning angle range of 160 (À80 ~80 ) and an H-plane scanning angle range of 122 (À61 ~61 ), with the gain fluctuation less than 3 dB and the sidelobe level less than À10.1 dB.

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Dual-Polarized and Wide-Angle Scanning Microstrip Phased Array

Cited by 65 publications

References 19 publications

A Method for Tailoring the Gain Pattern of a Single Antenna Element

A Method for Tailoring the Gain Pattern of a Single Antenna Element

Omnidirectional Solid Angle Beam-Switching Flexible Array Antenna in Millimeter Wave for 5G Micro Base Station Applications

Hybrid topology optimization of dual‐polarized wide‐beam antenna and its application in wide‐angle scanning array

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