Aperture Coupled Microstrip Antenna With Low RCS

Zheng, Junhao; Liu, Ying; Gong, and Shu-Xi

doi:10.2528/pierl08013102

Cited by 22 publications

(11 citation statements)

References 10 publications

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“…In the traditional high-frequency method [9][10][11], we often overlook the shadow of the side effects. The impact on current of the shadow region is small; however, in some applications the scattering of their contributions can not be ignored.…”

Section: Bistatic Scattering In Shadow Regionmentioning

confidence: 99%

Bistatic RCS Prediction for Complex Targets Using Modified Current Marching Technique

Li¹,

Xie²,

Yang³

2009

PIER

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Abstract-The improved high-frequency method for solving the bistatic scattering from electrically large conductive targets is presented in this paper. Since the previous physical optical methods overlooked the current impact of shadow zone and led to the increasing problems of the large angle bistatic calculation, the improved method is deduced by introducing the current marching technique into the conventional physical optical method. Combined with the graphicalelectromagnetic computing method that extracted the illuminated and shadow facet in accordance with the direction of the incident sort iteration, one may calculate the bistatic radar cross-section of a conductive targets object. The numerical results show that this method is efficient and accurate.

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Section: Bistatic Scattering In Shadow Regionmentioning

confidence: 99%

Bistatic RCS Prediction for Complex Targets Using Modified Current Marching Technique

Li¹,

Xie²,

Yang³

2009

PIER

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“…Then, the E-field of the mth edge at observation point r can be calculated as [21] E m (r) = η 4π (6) here, η is the wave impedance in free space, k = 2π/λ, λ is the wavelength. So the total E-field can be given as…”

Section: The Calculation Of Radiationmentioning

confidence: 99%

“…Therefore, the RCS reduction of an antenna must convince that the radiation performance can not be affected. Various techniques such as resistive sheets, distributed loading, fractal, aperture and slotting designs [2][3][4][5][6] has been employed to realize low RCS. However, these studies deal with the structure of single antenna, but rarely relate to the array antenna.…”

Section: Introductionmentioning

confidence: 99%

Low RCS Dipole Array Synthesis Based on Mom-Pso Hybrid Algorithm

Wang¹,

Gong²,

Zhang³

et al. 2009

PIER

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Abstract-In this paper, a hybrid algorithm combined method of moments (MoM) with particle swarm optimization (PSO) is used to realize low radar cross section (RCS) array synthesis. Both the scattering factor and the radiation factor are involved in the proposed objective function to achieve the promising dipole array with a reduced RCS and satisfied radiation performance. To improve the optimization efficiency, radiation constraint conditions are adopted to avoid unnecessary scattering calculation. The symmetric matrix and block treatment are also used to fill the MoM impedance matrix. The optimization results show that the proposed algorithm is able to achieve RCS reduction of 5.5 dB for dipole array.

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“…Recently dual-band antennas have wide applications in many fields such as GPS [1], WLAN [2] and satellite communication [3], while the considerable scattering from dual-band antennas has been the bottleneck in the improvement of the stealth capability of the whole system [4,5]. The utilization of electromagnetic wave absorber is one of the efficient methods to reduce the Radar Cross Section (RCS) of antennas.…”

Section: Introductionmentioning

confidence: 99%

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

Zhang¹,

Cao²,

Gao³

et al. 2014

PIER Letters

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Abstract-In this letter, a novel dual-band metamaterial absorber is presented and analyzed. The absorber is composed of four patches on the top of a thin grounded dielectric substrate which can absorb incident wave at two different frequency bands effectively. Then the absorber is loaded on the dual-band microstrip antenna, whose working frequency bands are overlapped with that of the absorber, to reduce the in-band RCS (Radar Cross Section) of antenna. The prototype is simulated, manufactured and measured. Simulated results show that the absorption of the absorber is as high as 98.6% at 4.29 GHz and 99.8% at 6.49 GHz. As to the dual-band antenna loaded with the proposed absorber, its radiation performance is unchanged while the RCS has declined by 8.59 dB at 4.29 GHz and 9.9 dB at 6.49 GHz respectively. There is a good agreement between simulated and measured results, which verifies that this absorber can be used for in-band RCS reduction of dual-band antenna so as to improve its in-band stealth performance.

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Aperture Coupled Microstrip Antenna With Low RCS

Cited by 22 publications

References 10 publications

Bistatic RCS Prediction for Complex Targets Using Modified Current Marching Technique

Bistatic RCS Prediction for Complex Targets Using Modified Current Marching Technique

Low RCS Dipole Array Synthesis Based on Mom-Pso Hybrid Algorithm

A Novel Dual-Band Metamaterial Absorber and Its Application for Microstrip Antenna

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