Low RCS Microstrip Patch Antenna Using Frequency-Selective Surface and Microstrip Resonator

Liu, Ying; Hao, Yuwen; Wang, Hui; Li, Kun; Gong, Shuxi

doi:10.1109/lawp.2015.2402292

Cited by 81 publications

(35 citation statements)

References 10 publications

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“…That means, it is mandatory to reduce the RCS of an antenna. Many ways have been reported to reduce RCS from the last few years, such as frequency selective surfaces (FSS), [3][4][5] artificial magnetic conductor (AMC), [6][7][8] and electromagnetic band-gap structures (EBG). [8][9][10] Metamaterial (MMs) are artificial materials, which are engineered to possess unique EM properties that are not found in naturally occurring materials.…”

Section: Introductionmentioning

confidence: 99%

Design and development of low radar cross section antenna using hybrid metamaterial absorber

Sharma

Panwar

Khanna

2019

Micro & Optical Tech Letters

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An efficient approach is presented in this article, to reduce radar cross section (RCS) of a microstrip patch antenna, without affecting other radiation characteristics by the application of a novel hybrid metamaterial (MM) structure. The microstrip antenna is designed to operate at 4.2 GHz. Three different configurations of MM structures (ie, CB_1, CB_2, and hybrid) with splitted square and ring shaped two nonidentical MM cells are designed and critically analyzed in the range of 2‐18 GHz. A hybrid MM configuration is chosen for the design and implementation of low RCS antenna due to its exceptional performance as compared to CB_1 and CB_2. The hybrid MM is organized in chessboard configuration, comprises of splitted square and ring shaped MM unit cell. The results show that proposed antenna gives substantially out of band RCS reduction from 6 to 18 GHz and the proposed antenna has a lower RCS than the reference antenna. Proposed antenna attains wideband bandwidth around 7.4 GHz (ranging 2.0‐4.4 GHz, 7.8‐9.1 GHz, and 14.3‐18 GHz). The maximum reduction of −30.1 dBsm at 16.4 GHz is achieved in the hybrid MM structure impinged microstrip patch antenna. Finally, the fabrication and performance evaluation of MM loaded antenna is carried out. Moreover, measured results of the fabricated samples are closely matched with simulated results, which prove the effectiveness of the adopted approach for practical applications.

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Section: Introductionmentioning

confidence: 99%

Design and development of low radar cross section antenna using hybrid metamaterial absorber

Sharma

Panwar

Khanna

2019

Micro & Optical Tech Letters

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“…This approach is advantageous than many other techniques used for RCSR as these techniques degrade the antenna performance. Ying Liu et.al [16] investigated a low RCS microstrip antenna. The basis of design is microstrip resonator and implementation of FSS out of RCSR can be achieved by replacing metal ground with FSS ground.…”

Section: Introductionmentioning

confidence: 99%

Radar Cross Section Reduction Techniques using Metamaterials

2019

IJITEE

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In this paper, we have discussed and summarized the techniques of radar cross section reduction (RCSR). RCSR has been prompted due to the evolution of military technology. The paper reviews the basic concepts and characteristics of metamaterials, as these are the most favorable development that impacts defense industry products and stealth technology. This paper emphasizes the role of airpower and the ever-increasing demand for stealth. Initially, the blending of the fundamental aspects of stealth technology through radar signatures and methods of signature reduction are discussed. Then, the description of metamaterials and detailed analysis of their properties is made. This paper review the fundamental properties of metamaterials. It also explores the recent research activities on metamaterials in various areas. Some existing researches techniques used for RCSR are examined. The metamaterials are engineered media whose electromagnetic responses are different from those of their constituent components. The general benefits of metamaterials are pointed out in the paper. Metamaterials are mostly used in antenna configuration for enhancing antenna performance such as realizing miniaturization, expanding the operating band, enhancing gain as well as reducing RCS. These characteristics of the metamaterials are basically the reason why metamaterials should be used in stealth technology. The various categories of metamaterials used for RCSR are studied in the paper. In this paper, we have also proposed a unit cell. The unit cell consists of a square loop and intersecting strips at the edges of add shaped structure.

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“…In [12], EBG structure is used to reduce in-band RCS of a patch antenna and the RCS decreased more than 10 dB at the operation frequency. By using FSS ground instead of traditional solid metal ground, the RCS of antenna can be reduced [13][14][15][16]. But due to the replacement of the ground, the power leakage reduces the gain all the same.…”

Section: Introductionmentioning

confidence: 99%

Gain Enhancement and Wideband RCS Reduction of a Microstrip Antenna Using Triple-Band Planar Electromagnetic Band-Gap Structure

Li¹,

Zhang²,

Yang³

et al. 2017

PIER Letters

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Abstract-A triple-band planar electromagnetic band-gap (EBG) structure used for gain enhancement and wideband radar cross section reduction (RCSR) of antenna is presented in this paper. Three bandgaps of an EBG structure are realized by introducing two planar spiral inductances on a planar EBG structure. An equivalent model of EBG is given to further understand the formation of three band-gaps. The proposed EBG is placed around antenna units and arrays to calculate the affection of the RCS and the gain. Due to the band-gaps of the EBG structure, RCS of antennas is reduced, and the gain of antennas is enhanced. Results show that the RCS is reduced as much as 20 dB from 9 GHz to 21 GHz, and both of bandwidth and gain of antennas can be slightly enhanced. Two antenna units operating at 8.6 GHz are fabricated and measured to verify the correctness of simulation. Measured and simulated results are in good agreement.

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Low RCS Microstrip Patch Antenna Using Frequency-Selective Surface and Microstrip Resonator

Cited by 81 publications

References 10 publications

Design and development of low radar cross section antenna using hybrid metamaterial absorber

Design and development of low radar cross section antenna using hybrid metamaterial absorber

Radar Cross Section Reduction Techniques using Metamaterials

Gain Enhancement and Wideband RCS Reduction of a Microstrip Antenna Using Triple-Band Planar Electromagnetic Band-Gap Structure

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