Novel Polarization Rotation Technique Based on an Artificial Magnetic Conductor and Its Application in a Low-Profile Circular Polarization Antenna

Yang, Wanchen; Tam, Kam‐Weng; Choi, Wai‐Wa; Che, Wenquan; Hui, Hon Tat

doi:10.1109/tap.2014.2361130

Cited by 90 publications

(36 citation statements)

References 32 publications

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“…The dyadic reflection coefficient is expressed by the surface impedance as follows:

\overset{\overset{Γ}{true}}{true} = - {(M_{E} + \bar{\bar{Z}} M_{H})}^{- 1} ((), M_{E} - \overset{\overset{Z}{true}}{true} M_{H})

where

M_{E} = ([], \begin{matrix} 0 & \cos θ \\ 1 & 0 \end{matrix})

M_{H} = \frac{true}{1} ([], \begin{matrix} 0 & \cos θ \\ 1 & 0 \end{matrix})

. Then the reflection coefficient tensor can be deduced.…”

Section: Wide‐beam Cp Antenna Based On Polarization Rotation Techniquementioning

confidence: 99%

Wide‐angle scanning circular polarization phased array based on polarization rotation technology

Xie

2019

Int J RF Microw Comput Aided Eng

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A wide‐beam circular polarization (CP) antenna and a wide‐angle scanning phased array based on novel polarization rotation reflective surface (PRRS) are proposed. The CP wide‐beam pattern is obtained by the combination of the radiation wave from the patch antenna and the orthogonal reflected wave from the PRRS with a 90° phase difference. The proposed CP wide‐beam antenna obtains the patterns with the 3‐dB beamwidth more than 136° and the axial ratio (AR) beamwidth more than 132° in the xoz‐plane. Furthermore, an eight‐element phased array based on the wide‐beam CP antenna element is also developed. The measured results show that the main beam of the array can scan from −65° to 65° with a gain fluctuation less than 3 dB and the ARs at every scanning angle less than 3 dB.

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“…The dyadic reflection coefficient is expressed by the surface impedance as follows:

\overset{\overset{Γ}{true}}{true} = - {(M_{E} + \bar{\bar{Z}} M_{H})}^{- 1} ((), M_{E} - \overset{\overset{Z}{true}}{true} M_{H})

where

M_{E} = ([], \begin{matrix} 0 & \cos θ \\ 1 & 0 \end{matrix})

M_{H} = \frac{true}{1} ([], \begin{matrix} 0 & \cos θ \\ 1 & 0 \end{matrix})

. Then the reflection coefficient tensor can be deduced.…”

Section: Wide‐beam Cp Antenna Based On Polarization Rotation Techniquementioning

confidence: 99%

Wide‐angle scanning circular polarization phased array based on polarization rotation technology

Xie

2019

Int J RF Microw Comput Aided Eng

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“…A high polarization conversion efficiency of 96% with a polarization bandwidth of 24% is achieved using a metamaterial slab stacked with complementary split‐ring resonators . To realize polarization rotation in reflection type, high impedance surfaces and electromagnetic band gap structures are utilized . The study of literature reveals that the reflection type polarization rotators proposed so far either work in a narrow polarization frequency bands or have a reduced polarization conversion ratio (PCR).…”

Section: Introductionmentioning

confidence: 99%

An efficient reflective polarization rotation meta surface for broadband RCS reduction

Jeyaraj¹,

Swaminathan²

2018

Int J RF Microw Comput Aided Eng

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A compact and broadband reflective polarization rotation meta surface (PRMS) with high polarization conversion ratio (PCR) and radar cross section (RCS) reduction is proposed. A linearly polarized incident electromagnetic (EM) wave is reflected with 90° polarization rotation using the proposed PRMS. The reflective PRMS unit cell consists of complementary stacked quasi fractal patch along with logarithmic stepped patch. This reflective PRMS is printed on stacked FR4 substrates covered by FR4 superstrate and is backed by a ground plane. The patches are connected to the metallic ground using non symmetric metallic vias and the overall dimension of the unit cell in terms of its minimum operating wavelength is only 0.088λ0 × 0.088λ0 × 0.082λ0. A polarization bandwidth of 97.69% with a maximum PCR of 99% is achieved. Further, the proposed reflective PRMS is arranged periodically in a checkerboard surface to obtain a broadband RCS reduction of 10 dB in the required band. A prototype of the checkerboard surface is fabricated and tested for the validation of simulation results. A good pact is obtained between the simulation and experimental results.

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“…Recently, metasurface (MS) constructed by sub-wavelength metamaterial structures [1] has been studied in depth due to its favorable characteristics in manipulating electromagnetic waves, such as electromagnetic invisibility for antennas [2,3], polarization conversion [4,5], perfect absorption [6][7][8], and anomalous reflection [9], among which the MS with low-radar cross section (RCS) [10][11][12] is of crucial significance in military practice.…”

Section: Introductionmentioning

confidence: 99%

A Coding Metasurface With Properties of Absorption and Diffusion for RCS Reduction

Han¹,

Cao²,

Gao³

et al. 2017

PIER C

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Abstract-A low-radar cross section (RCS) coding metasurface (MS) with properties of absorption and diffusion for both normal and oblique incidences is proposed in this paper. The coding MS is composed of a miniaturized perfect metamaterial absorber (PMA) and a wideband artificial magnetic conductor (AMC) in a shared aperture. In addition, to avoid strong scattering energy appearing at specific directions, genetic algorithm (GA) is adopted to search the optimal layout of the two MS elements. Simulated and experimental results confirm the properties of coding MS and indicate that the 6-dB RCS reduction bands under TE-and TM-polarized normal incident waves are 6.28 GHz-9.16 GHz and 6.33 GHz-9.41 GHz, respectively.

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Novel Polarization Rotation Technique Based on an Artificial Magnetic Conductor and Its Application in a Low-Profile Circular Polarization Antenna

Cited by 90 publications

References 32 publications

Wide‐angle scanning circular polarization phased array based on polarization rotation technology

Wide‐angle scanning circular polarization phased array based on polarization rotation technology

An efficient reflective polarization rotation meta surface for broadband RCS reduction

A Coding Metasurface With Properties of Absorption and Diffusion for RCS Reduction

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