Integrated Low-Profile Low Radar Cross Section Circularly Polarized Dipole Antenna Array

Jin, Cheng; Zhang, Binchao; Yin, Liyuan; Lv, Qihao; Kong, Lingwen; Li, Liang

doi:10.1109/tap.2021.3090084

Cited by 12 publications

(6 citation statements)

References 32 publications

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“…Zhao et al [19] proposed a 4 × 4 antenna array and favorable results are obtained in addressing the conflict between radiation and scattering; however, the size of the MS-based element is up to 0.67λ 0 which is relatively large and harmful to the wide-angle scanning of antenna array. The same thing exists in [20], where an integrated 4 × 4 dipole array with electromagnetic wave absorbing function is proposed to realize wide out-of-band RCSR property, but the element spacing is more than 0.6λ 0 .…”

Section: Introductionmentioning

confidence: 86%

“…Therefore, the low-scattering performance of the integrated structure composed of a hybrid array and a low-RCS carrier is fully demonstrated. As a note, in this paper and in [17][18][19][20], the lowscattering performances of the arrays are achieved by the method of shape design, thus there are no extrastructures being introduced and the arrays have a simple and compact structure. Compared with the arrays in [17][18][19], our proposed array simultaneously realizes RCS reduction at both normal and grazing incidence, has a broader RCSR frequency range, and possesses a better in-band RCSR characteristic.…”

Section: Low-rcs Carrier Codesigned With the Low-scatteringmentioning

confidence: 98%

“…In [16], a microstrip antenna with reduced in-band and out-of-band RCS is presented; partial areas of the patch and ground are subtracted to achieve the low-scattering performance. In sum up, although different shapes of single antennas in [14][15][16] can all achieve RCS reduction, the arrays are more widely in use in the stealth platforms owing to the properties of high gain and high directivity [17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

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A Low-Scattering Antenna Array at Both Normal and Grazing Incidence

Xing

2023

International Journal of RF and Microwave Computer-Aided Engine

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In this paper, we investigate a low-scattering antenna array consisting of two different low radar cross-section (RCS) antenna elements. The low-scattering performance is achieved by broadband in-band absorbing with x (TM)-polarization and phase cancellation with y (TE)-polarization at normal incidence and a special shape design at grazing incidence. We demonstrate the effectiveness of the proposed antenna array through simulations and measurements. Compared with the reference one, the results show that it can achieve remarkable wideband monostatic RCS reduction from 3.3 to 8 GHz with a maximum reduction value of 23.5 dB at normal incidence and from 4.4 to 12.5 GHz with a peak reduction value of 15.3 dB at grazing incidence. Moreover, a low-RCS carrier is codesigned with the antenna array to verify the low-scattering property, which indicates that the proposed antenna array has a great potential for use in various application scenarios.

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Section: Introductionmentioning

confidence: 86%

Section: Low-rcs Carrier Codesigned With the Low-scatteringmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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A Low-Scattering Antenna Array at Both Normal and Grazing Incidence

Xing

2023

International Journal of RF and Microwave Computer-Aided Engine

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“…Recently various studies on the RCS reduction techniques have been reported [20]− [30], that includes realization of low RCS antenna using AFSR structure [23], [24]. In [23], a dipole antenna is studied with a single-polarization AFSR structure realizing a reduction in out-of-band RCS.…”

Section: Introductionmentioning

confidence: 99%

Low RCS Dual-Polarized Crossed Dipole Antenna Co-Designed With Absorptive Frequency- Selective Reflection Structure

et al. 2022

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This article proposes a novel strategy for realizing a reduction in radar cross-section (RCS) of dual-polarized crossed dipole antenna. At first, a compact and polarization-insensitive absorptive frequencyselective reflection (AFSR) structure is proposed by incorporating a bandstop ring resonator within the circular-cross based broadband absorber. The bandstop ring resonator is designed on the backside of the resistive layer due to which a reflection window is realized at a frequency of 8.2 GHz between the two broadband absorptions (4.2−7.0 GHz and 9.2−11.5 GHz). A dual-polarized crossed dipole antenna is designed with operating frequency lying within the reflecting notch of the AFSR structure. A 6 x 6 AFSR structure array is truncated at the center where from which the crossed dipole is connected through a feed substrate. The AFSR structure enacts as a modified ground plane to the crossed dipole antenna. The proposed AFSR integrated antenna achieves an average mono-static RCS reduction of 12.51 dB and 12.62 dB for the TE and TM incident waves, respectively. Further, the AFSR based antenna is also measured for the bi-static RCS, wherefrom the average total RCS reduction of 80% for TE and TM incidence is attained in the frequency band of 4.2 to 11.5 GHz.

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“…Array antenna has similarities with metasurface from structures to working principles [7,8]. Many works utilize metasurface to eliminate array antenna's RCS [9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Phase controllable FSR design and its application into a high-gain transmitarray antenna with a low radar cross-section

Zhang¹,

Cao²,

Yang³

et al. 2022

J. Phys. D: Appl. Phys.

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In this study, a high-gain transmitarray antenna (TAA) is proposed to achieve a low radar cross-section (RCS) with polarization-insensitive characteristic. Initially, an anisotropic frequency selective rasorber (FSR) structure is constructed by a detailed analysis of the current distributions and parameter adjustments. Hence, manipulations of absorption and transmission are achieved, along with covering a transmission phase cycle by rotating the element at 90°. Then , employing a phase-controllable FSR and focal length optimization, a low-RCS and high-gain TAA is presented. For the radiation case, the proposed antenna has a pencil pattern with a peak gain of 21.8 dBi. The F/D ratio is low when a wide-beam feed is utilized. At scattering state, in-band and out-of-band 6 dB RCS reductions are realized ranging from 7.6–10.4 GHz and 11.6–12.4 GHz compared to the reference TA. Moreover, its bistatic RCS is reduced in approximately ±90° of angular space under normal incidence. The effectiveness of the proposed design is verified by experiments.

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Integrated Low-Profile Low Radar Cross Section Circularly Polarized Dipole Antenna Array

Cited by 12 publications

References 32 publications

A Low-Scattering Antenna Array at Both Normal and Grazing Incidence

A Low-Scattering Antenna Array at Both Normal and Grazing Incidence

Low RCS Dual-Polarized Crossed Dipole Antenna Co-Designed With Absorptive Frequency- Selective Reflection Structure

Phase controllable FSR design and its application into a high-gain transmitarray antenna with a low radar cross-section

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