Wideband radar cross‐section reduction of patch array antenna with miniaturised hexagonal loop frequency selective surface

Joozdani, Mohsen Zahir; Amirhosseini, Mohammad Khalaj; Abdolali, Ali

doi:10.1049/el.2016.0336

Cited by 58 publications

(31 citation statements)

References 8 publications

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“…Frequency selective surface (FSS) shows a wide range of applications in electromagnetic shielding [1], satellite communication [2], metamaterials fabrication [3] and radar cross section (RCS) reduction [4][5][6] according to its spatial filter characteristics such as bandpass or bandstop response to electromagnetic (EM) waves [7]. Bandpass FSS (BPFSS) is more widely used among these situations.…”

Section: Introductionmentioning

confidence: 99%

Design of Frequency Selective Absorber Based on Parallel Lc Resonators

Zhang¹,

Jiang²,

Ren³

et al. 2018

PIER M

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Abstract-This paper describes a method of designing Frequency Selective Absorber (FSA) which has a transmission band between two neighboring absorption bands. The proposed FSA is composed of a lossy layer on the top and a lossless layer at the bottom. The transmission characteristic is produced by the parallel LC resonators embedded in the lossy layer while the absorption ability is realized by the lumped resistors constructed in the lossy layer. An equivalent circuit model (ECM) is developed and discussed for a better understanding of this method. An FSA prototype is fabricated and measured for demonstration. Experiments show that the proposed FSA has a transmission band at the center frequency of 8.14 GHz, which agrees well with simulation. Both transmission and refection coefficients from 4.5 GHz to 7.5 GHz and from 9.1 GHz to 11.3 GHz are under −10 dB, which indicate good absorption in these frequency bands. In addition, the performance of the proposed FSA demonstrates a low sensitivity with respect to the polarization of incident EM waves and is maintained well when the incident angles range from 0 • to 45 • .

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Section: Introductionmentioning

confidence: 99%

Design of Frequency Selective Absorber Based on Parallel Lc Resonators

Zhang¹,

Jiang²,

Ren³

et al. 2018

PIER M

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show abstract

“…The antenna/radar signature is proportional to the reflections from antenna surface; RCS analysis significantly increases with the use of antennas in military applications. Therefore, RCS analysis and its reduction have attracted great interest from researchers over the last few years [24][25][26][27]. The RCS analysis will explore the orientation of antenna while deploying based on application.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Wideband Two Elements Dual Segment Half-Cylindrical Dielectric Resonator Antenna (Ds H-Cdra) With RCS Analysis

Ranjan¹,

Gangwar²,

Singh³

et al. 2018

PIER C

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Abstract-In this paper dual segment half Cylindrical Dielectric Resonator Antennas (DS h-CDRA), deploying homogenous elements, are designed and analyzed for wide-band applications. At first a single element is analyzed followed by two element DS h-CDRA. Further, Radar Cross Section (RCS) analysis is performed for different angles and frequencies. The proposed antennas are excited from the center of the ground plane using a coaxial probe feed, which results in TM 01δ as a mode of excitation in cylindrical DRA. The input impedance and radiation characteristics are determined and compared with measured results, which shows good agreement. The proposed DS h-CDRA provides measured wide bandwidth (≈ 98%) from 5.0 GHz to 11.5 GHz with gain of 4.85 dBi, and it is found constant throughout the operational band (with omnidirectional radiation pattern). The designed antennas performance has also been compared with two element h-CDRA and found even better for the same volume and effective radiation area. The RCS analysis has been performed for monostatic and bistatic mode at different frequencies and angles. The proposed antenna has been found suitable for 5.0 GHz WLAN and WiMAX wireless application.

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“…It is widely used in fields such as satellite communication [2], antenna beam-steering [3], electromagnetic shielding [4], meta-materials integration [5] and radar cross section (RCS) reduction [6][7][8] based on its spatial filter characteristics of electromagnetic (EM) waves such as bandpass or bandstop response. However, performance requirements for FSSs are different according to application environments.…”

Section: Introductionmentioning

confidence: 99%

An Annular-Ring Miniaturized Stopband Frequency Selective Surface With Ultra-Large Angle of Incidence

Zhang¹,

Jiang²,

Ren³

et al. 2018

PIER M

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Abstract-An annular-ring element for building a miniaturized bandstop frequency selective surface (FSS) structure which possesses a superior performance with respect to electromagnetic wave polarizations and incident angles is introduced in this paper. The proposed element has prominent miniaturization characteristics with a unit dimension of 0.061λ × 0.061λ, where λ represents the freespace wavelength corresponding to resonant frequency. Miniaturization of the proposed FSS element is achieved by constructing special meandered strips in geometry and arranging lumped components between the elements. The advantage of this method lies in its great simplicity in tuning the resonant frequency of FSS by adjusting values of the printed capacitors rather than rebuilding the geometry. The obtained FSS also exhibits a stable performance in terms of angle stability and polarization insensitivity. Prototypes of the proposed FSS are fabricated and measured to verify design method. Measurements are well in line with simulation results.

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Wideband radar cross‐section reduction of patch array antenna with miniaturised hexagonal loop frequency selective surface

Cited by 58 publications

References 8 publications

Design of Frequency Selective Absorber Based on Parallel Lc Resonators

Design of Frequency Selective Absorber Based on Parallel Lc Resonators

Investigation of Wideband Two Elements Dual Segment Half-Cylindrical Dielectric Resonator Antenna (Ds H-Cdra) With RCS Analysis

An Annular-Ring Miniaturized Stopband Frequency Selective Surface With Ultra-Large Angle of Incidence

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